Combination Firmware A8 (2018) SW rev check fails device 3 binary 2. - Samsung Galaxy A8 (2018) Questions & Answers

I know this should be in Rom,kernels,rev. I'm a junior member so I can't post their yet
So I've recently rooted my phone. I got too excited and tried installing a custom boot animation that screwed up my phone and it couldn't shut down only restart.
Then I had an idea to wipe the system through TWRP and I accidentally deleted everything (Wiped internal storage) so download mode was blank. Then I tried installing stock Rom but I extracted it, removed the stock recovery.img.lz4 and replaced it with the TWRP Recovery. For some weird reason the firmware was acting weird with T mobile roaming and stuff that wasn't supposed to be there cause I'm not a t mobile customer. Then I just flashed stock Rom (Augaust security patch) with Odin. Aaand I got RMM Locked again :crying::crying:
I thought flashing combination firmware again would allow me to access the OEM unlock option and flash TWRP again.
When I tried to flash I got an error SW rev check fails device 3 binary 2. If anyone could help me I would really appreciate it. Also if anyone knows why I got the T mobile stuff after I did the TWRP thing (out of curiosity) I would like to know. Please respond.

DeadRatGames said:
I know this should be in Rom,kernels,rev. I'm a junior member so I can't post their yet
So I've recently rooted my phone. I got too excited and tried installing a custom boot animation that screwed up my phone and it couldn't shut down only restart.
Then I had an idea to wipe the system through TWRP and I accidentally deleted everything (Wiped internal storage) so download mode was blank. Then I tried installing stock Rom but I extracted it, removed the stock recovery.img.lz4 and replaced it with the TWRP Recovery. For some weird reason the firmware was acting weird with T mobile roaming and stuff that wasn't supposed to be there cause I'm not a t mobile customer. Then I just flashed stock Rom (Augaust security patch) with Odin. Aaand I got RMM Locked again :crying::crying:
I thought flashing combination firmware again would allow me to access the OEM unlock option and flash TWRP again.
When I tried to flash I got an error SW rev check fails device 3 binary 2. If anyone could help me I would really appreciate it. Also if anyone knows why I got the T mobile stuff after I did the TWRP thing (out of curiosity) I would like to know. Please respond.
Click to expand...
Click to collapse
It seems that your filmware is corrupt.
Which bootloader binary are you on, binary 2 or 3, Nougat or Oreo?
Remember that if you have binary 3 you cannot downgrade to binary 2.
And don't use the combination rom anymore because you have to know what you're doing its risky.
I can advise you to do a fresh install of the official country filmware from out of the box, and after that update to the latest filmware version, and a big chance to get rid of RMM prenormal state, with oem-unlock back.
If you're on binary 2, just flash an official filmware from your country before the August security patch, after that update it again to the latest version.

solamente said:
It seems that your filmware is corrupt.
Which bootloader binary are you on, binary 2 or 3, Nougat or Oreo?
Remember that if you have binary 3 you cannot downgrade to binary 2.
And don't use the combination rom anymore because you have to know what you're doing its risky.
I can advise you to do a fresh install of the official country filmware from out of the box, and after that update to the latest filmware version, and a big chance to get rid of RMM prenormal state, with oem-unlock back.
If you're on binary 2, just flash an official filmware from your country before the August security patch, after that update it again to the latest version.
Click to expand...
Click to collapse
Thanks for responding, I'm currently on binary 3 on android Oreo August security patch.
What do you mean by a fresh install from out of the box. Like Download the latest version from updato?
I apologise if I seem a little clueless lol.

DeadRatGames said:
Thanks for responding, I'm currently on binary 3 on android Oreo August security patch.
What do you mean by a fresh install from out of the box. Like Download the latest version from updato?
I apologise if I seem a little clueless lol.
Click to expand...
Click to collapse
What I meant is the first official filmware you had when the phone was bought,and if you were on binary 2, but that doesn't matter now you're on binary 3.
Now you have to flash the official filmware from your country, it must be a binary 3 filmware because downgrading will not work.
After that you have to do jailtime for 168 hours untill oem unlock is gonna appear again.
Do not restart the phone or disconnect the network at this time.

solamente said:
What I meant is the first official filmware you had when the phone was bought,and if you were on binary 2, but that doesn't matter now you're on binary 3.
Now you have to flash the official filmware from your country, it must be a binary 3 filmware because downgrading will not work.
After that you have to do jailtime for 168 hours untill oem unlock is gonna appear again.
Do not restart the phone or disconnect the network at this time.
Click to expand...
Click to collapse
Do I really need to wait 168 hours lol?

DeadRatGames said:
Do I really need to wait 168 hours lol?
Click to expand...
Click to collapse
Unfortunately you do with the 1 august patch, if you can find a previous official filmware, for example april, may, june or juli patch you can do the trick to set back the date and time 7 days and get oem unlock back.
But this does not work anymore with the august patch or later, that means you have to wait 7 days.

solamente said:
Unfortunately you do with the 1 august patch, if you can find a previous official filmware, for example april, may, june or juli patch you can do the trick to set back the date and time 7 days and get oem unlock back.
But this does not work anymore with the august patch or later, that means you have to wait 7 days.
Click to expand...
Click to collapse
How do I downgrade though?

DeadRatGames said:
How do I downgrade though?
Click to expand...
Click to collapse
At this time its impossible to downgrade from a binary 3 towards 2 or from 2 to 1.
You can only upgrade, Samsung has blocked the downgrading from a higher to a lower binary, therefore it is useless to try it with Odin, it won't succeed.
Maybe someone else knows a way around to downgrade, but I don't.

DeadRatGames said:
I know this should be in Rom,kernels,rev. I'm a junior member so I can't post their yet
So I've recently rooted my phone. I got too excited and tried installing a custom boot animation that screwed up my phone and it couldn't shut down only restart.
Then I had an idea to wipe the system through TWRP and I accidentally deleted everything (Wiped internal storage) so download mode was blank. Then I tried installing stock Rom but I extracted it, removed the stock recovery.img.lz4 and replaced it with the TWRP Recovery. For some weird reason the firmware was acting weird with T mobile roaming and stuff that wasn't supposed to be there cause I'm not a t mobile customer. Then I just flashed stock Rom (Augaust security patch) with Odin. Aaand I got RMM Locked again :crying::crying:
I thought flashing combination firmware again would allow me to access the OEM unlock option and flash TWRP again.
When I tried to flash I got an error SW rev check fails device 3 binary 2. If anyone could help me I would really appreciate it. Also if anyone knows why I got the T mobile stuff after I did the TWRP thing (out of curiosity) I would like to know. Please respond.
Click to expand...
Click to collapse
1. You didn't posted in the wrong section. This one is the correct one, the one where you wanted to post is reserved to ROMs, kernels and other projects.
2. Modifying Official firmwares is a bad idea if you don't know how to do it. Seems also you downloaded the wrong firmware for your phone.
3. Flashing Combination firmware is useless since OEM Toggle is still enabled (you said you were rooted so I suppose yes). RMM flag is still stored in RPMB and doesn't gets resetted by flashing that factory fw, to set RMM back to Normal you need to flash the full stock firmware for your country and wait the classic 168h countdown.
4. The "SW REV. CHECK FAIL (BOOTLOADER) DEVICE: x, BINARY: x" is caused because you're trying to flash a firmware with a lower rev. than the one installed in your phone. You need to flash a firmware with the same or higher rev (In this case, you need a XXU3/XXS3 or higher fw). Forget to flash a fw with a lower rev since RP fuse prevents you to do it (if you force install the bl via TWRP you get an hardbrick)

BlackMesa123 said:
1. You didn't posted in the wrong section. This one is the correct one, the one where you wanted to post is reserved to ROMs, kernels and other projects.
2. Modifying Official firmwares is a bad idea if you don't know how to do it. Seems also you downloaded the wrong firmware for your phone.
3. Flashing Combination firmware is useless since OEM Toggle is still enabled (you said you were rooted so I suppose yes). RMM flag is still stored in RPMB and doesn't gets resetted by flashing that factory fw, to set RMM back to Normal you need to flash the full stock firmware for your country and wait the classic 168h countdown.
4. The "SW REV. CHECK FAIL (BOOTLOADER) DEVICE: x, BINARY: x" is caused because you're trying to flash a firmware with a lower rev. than the one installed in your phone. You need to flash a firmware with the same or higher rev (In this case, you need a XXU3/XXS3 or higher fw). Forget to flash a fw with a lower rev since RP fuse prevents you to do it (if you force install the bl via TWRP you get an hardbrick)
Click to expand...
Click to collapse
Thanks for responding currently I am on stock official firmware for my country and waiting 7 days,6 days left. I appreciate you all for responding. I want to ask one last thing, if I wipe internal storage through TWRP and delete the OS (blank download mode) can I not install a binary 2 boot loader?

DeadRatGames said:
Thanks for responding currently I am on stock official firmware for my country and waiting 7 days,6 days left. I appreciate you all for responding. I want to ask one last thing, if I wipe internal storage through TWRP and delete the OS (blank download mode) can I not install a binary 2 boot loader?
Click to expand...
Click to collapse
Already replied: no. First, there's no relation between bootloader and system (why should a wipe let you flash a lower rev bootloader lol). And as I already explained, Rollback Prevention fuse avoids you to do that: in Odin if you try to flash a lower rev bin it returns an error. If you try to force install it via TWRP, you'll hard brick your device and get a dead phone

BlackMesa123 said:
Already replied: no. First, there's no relation between bootloader and system (why should a wipe let you flash a lower rev bootloader lol). And as I already explained, Rollback Prevention fuse avoids you to do that: in Odin if you try to flash a lower rev bin it returns an error. If you try to force install it via TWRP, you'll hard brick your device and get a dead phone
Click to expand...
Click to collapse
When I say wipe I mean like complete wipe. Delete everything not just date like fully wipe internal storage. But anyway thanks.

Reformat system.

DeadRatGames said:
When I say wipe I mean like complete wipe. Delete everything not just date like fully wipe internal storage. But anyway thanks.
Click to expand...
Click to collapse
Don't take any risks or you will be ending up with a hard brick, like Mesa said!
Just do your time 6 days I think.

solamente said:
Don't take any risks or you will be ending up with a hard brick, like Mesa said!
Just do your time 6 days I think.
Click to expand...
Click to collapse
Ok. Thanks

ok so i have 2 of my a8's that are frp locked right now to the same frikken account and i can't remember what it is now. one is binary 2 and the other 3. both have no oem unlock in combination so i can't bypass... will this work for me? if so how do i know what my original firmware was? or do you mean just original carrier? also when waiting the 7 days where do i let them idle during the wait if i can't get passed google login during install?
both are sm-a530w both on oreo. binary 2 and 3

vibespredah said:
ok so i have 2 of my a8's that are frp locked right now to the same frikken account and i can't remember what it is now. one is binary 2 and the other 3. both have no oem unlock in combination so i can't bypass... will this work for me? if so how do i know what my original firmware was? or do you mean just original carrier? also when waiting the 7 days where do i let them idle during the wait if i can't get passed google login during install?
both are sm-a530w both on oreo. binary 2 and 3
Click to expand...
Click to collapse
same questions

vibespredah said:
ok so i have 2 of my a8's that are frp locked right now to the same frikken account and i can't remember what it is now. one is binary 2 and the other 3. both have no oem unlock in combination so i can't bypass... will this work for me? if so how do i know what my original firmware was? or do you mean just original carrier? also when waiting the 7 days where do i let them idle during the wait if i can't get passed google login during install?
both are sm-a530w both on oreo. binary 2 and 3
Click to expand...
Click to collapse
use this technic and your problem will be solved : youtube/watch?v=WmvjDEk6w4E

amazing. youre the man. cheers.
samalderon said:
use this technic and your problem will be solved : youtube/watch?v=WmvjDEk6w4E
Click to expand...
Click to collapse
omg youre the best. thanks so much.

Related

Stuck at Powered by Android please help SM-N915G

My Fried gave this phone to me (SM-N915G) which is stuck at Powered by Android, and told me to fix it.
He said that when he update to MM from LP without KIES or Odin, the phone suddenly restarted and stuck there getting HOT
He had no experiece to repair it so he asked me to fix it.
So for 3 days lately, i have tried many ways to fix it but wihout any progress, as follow :
1. Flashing Official MM wby using Odin -> still stuck
2. Downgrading Flash Official LP using Odin -> still stuck
3. Installed TWRP, and flasing CFW Micky387_MM_V3.0 for 915F/FY/G (flashing Bootloader and modem as required) -> still stuck with set warranty bit : kernel
4. After Flashing Micky CFW and Failde, i try to flash Emotion Kernel -> still stuck with Kernel is Seandroid Enforcing
5. Redoing Flash Micky CFW with other CSC -> Still Stuck (even i tried with 915F and 915FY as in the aroma installer)
6. Never failed during flash procedure with Odin or TWRP, everything is smooth
7. When stuck, the device is getting Hot slowly but and when left as long as 15 minutes, the HH is getting HOT (TWRP read 72 degree at most)
**Update
8. Tried using Official SmartSwitch sucessfully but the result is still the same -> Still Stuck and getting hot as usual T.T
Last Download Mode status is :
Odin Mode (High Speed)
Product name: SM-N915G
Current Binary: Samsung Official
System Status: Official
Reactivation Lock: Off
Knox warranty void: 0x1 (2)
Quallcomm secureboot : Enable (CSB)
RP SWREV: S1, T1, R1, A1, P1
Secure Download: Enable
UDC START
I am now thinking, should i flash another Kernel or PIT or Bootloader? but i still cant decide what to do next to revive this Phone
Please help, any suggestion is greatly appreciated, thank you.
Please give some help, thank you.
Help Please anyone?
This is Hard Brick or Soft Brick?
Any suggestion or Opinion please
Thank you
wingz17 said:
Help Please anyone?
This is Hard Brick or Soft Brick?
Any suggestion or Opinion please
Thank you
Click to expand...
Click to collapse
Have you tried a reinstall using KIES?
The Radius Kid said:
Have you tried a reinstall using KIES?
Click to expand...
Click to collapse
Yes i have try to recover but not using KIES, but using smartswitch...
Is it diffrent by using KIES or SmartSwitch?
Thank you.
wingz17 said:
Yes i have try to recover but not using KIES, but using smartswitch...
Is it diffrent by using KIES or SmartSwitch?
Thank you.
Click to expand...
Click to collapse
I can tell you that Kies and NOT Kies 3 was what worked for me when I downloaded/installed Marshmallow from Samsung's website.
Figure that one out.
That was also using a 64 bit version of Windows 7 Pro.
The Radius Kid said:
I can tell you that Kies and NOT Kies 3 was what worked for me when I downloaded/installed Marshmallow from Samsung's website.
Figure that one out.
That was also using a 64 bit version of Windows 7 Pro.
Click to expand...
Click to collapse
Thank you for the suggestion,
I will try that one out and let you know.
wingz17 said:
Thank you for the suggestion,
I will try that one out and let you know.
Click to expand...
Click to collapse
The Radius Kid said:
I can tell you that Kies and NOT Kies 3 was what worked for me when I downloaded/installed Marshmallow from Samsung's website.
Figure that one out.
That was also using a 64 bit version of Windows 7 Pro.
Click to expand...
Click to collapse
Sorry For the long response, i have tried flasing using KIES but still stuck on the android, and no progress.
Right now i am run out of option, please help, thank you.
wingz17 said:
Sorry For the long response, i have tried flasing using KIES but still stuck on the android, and no progress.
Right now i am run out of option, please help, thank you.
Click to expand...
Click to collapse
I'm going to guess that you've tried installing MM using Kies directly from Sammobile?
If so,have you tried turning off your computer's antivirus when you download/install?
It sounds like the bootloader is looking for something and can't find it.....kind of like what happened to me when I totally ripped KNOX out of my phone.
Restore time!
Good thing I did CWM backups.
In your case,your computer's anti virus could be seeing something in the download and ripping it out.
I've seen my browsers do that when I download stuff....pain in the....
Have you tried a different battery?
Maybe a search of the forums to see if anyone else has had this problem and solved it?
I kind of remember seeing something like this a while back.
The Radius Kid said:
I'm going to guess that you've tried installing MM using Kies directly from Sammobile?
If so,have you tried turning off your computer's antivirus when you download/install?
It sounds like the bootloader is looking for something and can't find it.....kind of like what happened to me when I totally ripped KNOX out of my phone.
Restore time!
Good thing I did CWM backups.
In your case,your computer's anti virus could be seeing something in the download and ripping it out.
I've seen my browsers do that when I download stuff....pain in the....
Have you tried a different battery?
Maybe a search of the forums to see if anyone else has had this problem and solved it?
I kind of remember seeing something like this a while back.
Click to expand...
Click to collapse
Thank you for the response,
I was using KIES 2.64 that downloaded from Samsung website to fix the phone as your suggestion (tools->firmware upgrade and initialisation) but still fail to fix it.
Nope, the antivirus still active when KIES download the FW and Flash it into the phone, but it is new to me that antivirus will intercept ongoing dowloaded files, if so i think the antivirus will give some notification or warning about the content of the file that being downloaded and in my case, my antivirus is still cool and no notification whatsoever.
The bad thing is i do not have any cwm backup and since this is my friend phone and not mine, well... we dont have any backup for this phone.
Regarding the battery, i admit that i havent try other battery, since i dont see any connecton between it, in my opinion, the phone works well, the charging animation working, and no sign of weak battery... but i will try to do it if i can get some other battery
I have surfed many forums and websites, but almost 90% can be fixed with simple flashing from odin or just by clearing up cache and data from recovery.
Other that that, wither, no one respond to the problem, or just some discussion without conclusion, really frustrating.
I even go further to read about android booting sequence to identify whats wrong with the boot sequence, but still confused...
But i have some question if you would to answer :
1 . Stuck at Android logo, bootloader or kernel problem?
2 . Is it possible that one of the mainboard chip that have some part in booting process is malfunctioning? But if so, the phone will be dead bricked right?
3. How about the booting process is halted due some hardware failure? ex : some chip (other than chip that have part in booting process) is bad and so the bootloader init is halted
4. The Worst guess, is it possible that the phone is fake? (the serial number behind the baterry is accepted by kies though)
Thank you very much, you are the only one who still response to my problem. :good:
As it seems you use the wrong Bootlaoder. Is his phone N915P or N915G? When you flash N915G Bootloader to N915P, it will not boot but the bootloader will work correctly. Try to flash the N915P bootloader.
I have N915FY phone but did not know first if I had N915F or FY. I flashed the N915F bootloader version, which flashed successfully, but was not booting. Bootloader said that my phones model is N915F. After flashing the FY Bootloader version, it successfully booted to system.
Bordo_Bereli51 said:
As it seems you use the wrong Bootlaoder. Is his phone N915P or N915G? When you flash N915G Bootloader to N915P, it will not boot but the bootloader will work correctly. Try to flash the N915P bootloader.
I have N915FY phone but did not know first if I had N915F or FY. I flashed the N915F bootloader version, which flashed successfully, but was not booting. Bootloader said that my phones model is N915F. After flashing the FY Bootloader version, it successfully booted to system.
Click to expand...
Click to collapse
Thank you for the Response,
First, his phone is N915G (according to the box and the information in the battery compartment)
(Really sorry for the mistake i made at the thread title)
And regarding bootloader, that is also my concern at first, i think maybe i was flasing wrong region and bootloader, and so i search the way to find out the real version of the phone, but after trying many ways described on the net (by imei or serial number) , i still cannot found out the way.
But one instance when i try using KIES, and KIES asked for the version and serial number when device upgrade and initialisation, i entered the exact version and serial number that is found behind the phone in battery compartment. KIES immediately confirms that the version and serial number is valid, (i still wonder though, is KIES check it online at Samsung server or there are some serial number database embedded in the KIES) and continue to run trough the official fw download and installation by KIES but at the end still no success.
Is it possible that the version and serial number is wrong ? if so, how to determine the correct one?
and is it safe to try flasing another bootloader?
Thank you very much
Hello, there is no bootloader related to serial number or something. There are different bootloaders for different models and android version. When you flash MM-Version, you need to be sure that you use the right bootloader and baseband files for MM. If you flash different region-locked firmware/bootloader, it will not affect btw. not solve the boot-stuck problem.
http://samsung-updates.com/device/?id=SM-N915G Try to flash 6.0.1 firmware that is related to your region if you still want to try to flash different region-firmware.
Maybe download the XSA 6.0.1 Firmware with the pit file XSA http://gsm-firmware.com/index.php?a=browse&b=file-info&id=15892.
Then flash XSA 6.0.1 and TBLTE_SEA_XSA.pit together in odin. Under Odin 3 V3.12 ticke the re-partition at option-tab and select TBLTE_SEA_XSA.pit under pit-tab.
Bordo_Bereli51 said:
Hello, there is no bootloader related to serial number or something. There are different bootloaders for different models and android version. When you flash MM-Version, you need to be sure that you use the right bootloader and baseband files for MM. If you flash different region-locked firmware/bootloader, it will not affect btw. not solve the boot-stuck problem.
http://samsung-updates.com/device/?id=SM-N915G Try to flash 6.0.1 firmware that is related to your region if you still want to try to flash different region-firmware.
Maybe download the XSA 6.0.1 Firmware with the pit file XSA http://gsm-firmware.com/index.php?a=browse&b=file-info&id=15892.
Then flash XSA 6.0.1 and TBLTE_SEA_XSA.pit together in odin. Under Odin 3 V3.12 ticke the re-partition at option-tab and select TBLTE_SEA_XSA.pit under pit-tab.
Click to expand...
Click to collapse
Thanks for the reply!
Although there is no bootloader related to serial number, but if we put the serial number in KIES, it will identify what CSC and region, which can be use as a guide to choose the correct FW or let KIES do the Flashing according to the inputted serial number, and as long as the serial number is correct one, that is my opinion but please CMIIW.
When flashing MM, if i use the MM that has been downloaded, the bootloader and baseband is included in the MM image right? or shouuld i flash it separately?
i have tried your suggestion but with no sucess, i have dowloaded the PIT and the FW, flash it trough odin which was sucess, but still stuck.
I do not tick auto restart at Odin, so i manually restart the phone, but i encounter an event which at 20% installing system update (below the greed droid guy) the progress bar is vanished and replaced with erasing, and after that the phone stuck again at the same spot.
Do you have any idea why?
Thank you very much.
Just thinking, should i erase the NAND in ODIN?
If so, how to restore it?
I think that if i backup the NAND using custom recovery and restore it later, it just bring back the same problem, if the NAND causing all this.
Do anyone have some NAND backup that i could use? or any other suggestion?
Thank you
Can you boot to recovery? if yes, try to wipe data and cache.
If it still not working, try to backup your efs with a custom recovery (ex. TWRP), or better the entire System like data, system, boot, efs, modem and save it to your computer.
After saving the backup, try to flash the firmware with pit file while checked NAND erase all.
When its finished and your device boots up, you can flash back your custom recovery and recover only the efs-partition.
If its not working, then there is maybe problems with your eMMC. But be aware using nand erase all. It is the last riskfully option left after trying several things.
I have a backup of my resurrection rom. If you want it I can upload it.

G930F locked on Combination firmware

Hi guys
I need a helping hand.
I have a s7 (G930F fxxu2drb6) with frp lock.
It did not work either realterm, bluetooth, or downgrade (SW REV CHECK FAIL DEVICE 2, BINARY 1 SAMSUNG).
On gsm-hosting they suggested to me to flash the combination file "COMBINATION_FA60_G930FXXU2ARA2_CL7964511_QB165812 9 6_REV00_user_mid_noship.tar.md5".
After the flash I can not yet downgrade (W REV CHECK FAIL DEVICE 2, BINARY 1 SAMSUNG), not even flash again "fxxu2drb6" (FAIL RQT_close).
Can someone help me get out of this situation?
Thank you in advance
marcoar said:
Hi guys
I need a helping hand.
I have a s7 (G930F fxxu2drb6) with frp lock.
It did not work either realterm, bluetooth, or downgrade (SW REV CHECK FAIL DEVICE 2, BINARY 1 SAMSUNG).
On gsm-hosting they suggested to me to flash the combination file "COMBINATION_FA60_G930FXXU2ARA2_CL7964511_QB165812 9 6_REV00_user_mid_noship.tar.md5".
After the flash I can not yet downgrade (W REV CHECK FAIL DEVICE 2, BINARY 1 SAMSUNG), not even flash again "fxxu2drb6" (FAIL RQT_close).
Can someone help me get out of this situation?
Thank you in advance
Click to expand...
Click to collapse
Try to connect with smart switch.
On windows pc or laptop
Sent from my [device_name] using XDA-Developers Legacy app
---------- Post added at 11:21 PM ---------- Previous post was at 11:20 PM ----------
marcoar said:
Hi guys
I need a helping hand.
I have a s7 (G930F fxxu2drb6) with frp lock.
It did not work either realterm, bluetooth, or downgrade (SW REV CHECK FAIL DEVICE 2, BINARY 1 SAMSUNG).
On gsm-hosting they suggested to me to flash the combination file "COMBINATION_FA60_G930FXXU2ARA2_CL7964511_QB165812 9 6_REV00_user_mid_noship.tar.md5".
After the flash I can not yet downgrade (W REV CHECK FAIL DEVICE 2, BINARY 1 SAMSUNG), not even flash again "fxxu2drb6" (FAIL RQT_close).
Can someone help me get out of this situation?
Thank you in advance
Click to expand...
Click to collapse
It will flash stock firmware and solve all binary problem
Sent from my [device_name] using XDA-Developers Legacy app
---------- Post added at 11:22 PM ---------- Previous post was at 11:21 PM ----------
marcoar said:
Hi guys
I need a helping hand.
I have a s7 (G930F fxxu2drb6) with frp lock.
It did not work either realterm, bluetooth, or downgrade (SW REV CHECK FAIL DEVICE 2, BINARY 1 SAMSUNG).
On gsm-hosting they suggested to me to flash the combination file "COMBINATION_FA60_G930FXXU2ARA2_CL7964511_QB165812 9 6_REV00_user_mid_noship.tar.md5".
After the flash I can not yet downgrade (W REV CHECK FAIL DEVICE 2, BINARY 1 SAMSUNG), not even flash again "fxxu2drb6" (FAIL RQT_close).
Can someone help me get out of this situation?
Thank you in advance
Click to expand...
Click to collapse
Intall smart connect or smart switch in pc
Sent from my [device_name] using XDA-Developers Legacy app
marcoar said:
Hi guys
I need a helping hand.
I have a s7 (G930F fxxu2drb6) with frp lock.
It did not work either realterm, bluetooth, or downgrade (SW REV CHECK FAIL DEVICE 2, BINARY 1 SAMSUNG).
On gsm-hosting they suggested to me to flash the combination file "COMBINATION_FA60_G930FXXU2ARA2_CL7964511_QB165812 9 6_REV00_user_mid_noship.tar.md5".
After the flash I can not yet downgrade (W REV CHECK FAIL DEVICE 2, BINARY 1 SAMSUNG), not even flash again "fxxu2drb6" (FAIL RQT_close).
Can someone help me get out of this situation?
Thank you in advance
Click to expand...
Click to collapse
Flash latest stock firmware for your region and enable OEM unlock in developer settings to avoid FRP in future. Also try to remember your google account password :silly:
Solved. I flash the latest firmware with an old version of odin
frp lock
marcoar said:
Solved. I flash the latest firmware with an old version of odin
Click to expand...
Click to collapse
Hi ! Which version of odin did you use ? Marcoar
And which version of android do you have before the flash ?
kira31390 said:
Hi ! Which version of odin did you use ? Marcoar
And which version of android do you have before the flash ?
Click to expand...
Click to collapse
Odin 3.12.5
Firmware: fxxu2drb6
marcoar said:
Hi guys
I need a helping hand.
I have a s7 (G930F fxxu2drb6) with frp lock.
It did not work either realterm, bluetooth, or downgrade (SW REV CHECK FAIL DEVICE 2, BINARY 1 SAMSUNG).
On gsm-hosting they suggested to me to flash the combination file "COMBINATION_FA60_G930FXXU2ARA2_CL7964511_QB165812 9 6_REV00_user_mid_noship.tar.md5".
After the flash I can not yet downgrade (W REV CHECK FAIL DEVICE 2, BINARY 1 SAMSUNG), not even flash again "fxxu2drb6" (FAIL RQT_close).
Can someone help me get out of this situation?
Thank you in advance
Click to expand...
Click to collapse
Hi there
When you flashed the combination rom you described did it actually boot into the factory binary ?
Im just curious as i have the same combination rom though my firmware is G930FXXU2DRBE and when i flash the binary with odin it will turn on but wont boot past the samsung S7 screen rhough the blue light comes on and pulsates though this is all it does i was just wonderng if yours did the same.
Thanks
Matty1993 said:
Hi there
When you flashed the combination rom you described did it actually boot into the factory binary ?
Im just curious as i have the same combination rom though my firmware is G930FXXU2DRBE and when i flash the binary with odin it will turn on but wont boot past the samsung S7 screen rhough the blue light comes on and pulsates though this is all it does i was just wonderng if yours did the same.
Thanks
Click to expand...
Click to collapse
after the combination file flash, the phone normally starts with the combination firmware
marcoar said:
after the combination file flash, the phone normally starts with the combination firmware
Click to expand...
Click to collapse
Thanks so much for the reply i appreciate it i might try my combination file with the G930FXXU2DRB6 firmware you used as i need to test my hardware and fix imei but cant get the factory binary to boot on G930FXXU2DRBE firmware my thinking that it wouldnt boot was as its FA60 is android 6.0 MM where as my U2DRBE firmware is FA70 7.0 nougat is your device nougat or marshmallow ? Just trying to work out whats going wrong where for it to not boot on my device as ive lost my imei number flashing a custom rom and dont have access to my TWRP back up for another 3 weeks
Thanks
Hello. I have a similar problem. I have the latest firmware on it: G930FXXS2DRDI There are no ways to lift the Google lock. I have tried everything possible: Bluetooth does not work, Talkback, Realterm, etc. Please for help
My Android Version is: 7.0 (Nougat)
Frp g930fxxu2ara1
Hello my friend, i have this problem too. Have you a fix? this security patch for FRP is incredible....
You CAN bypass FRP on later Samsung models using Combination FW. I have succsesfully done this with S8+/G955F, it should work with any device that has compatible Stock/Combinaton FW.. Here are the steps. Download a compatible STOCK ROM, and some similar COMBINATION FW (by similar i mean both FW to be with the same binary and same android version, duh..) Here are some firmware download links, but you can use whatever you want, according to your device.. G930F STOCK ROM/G930F Combination FW
First, using Odin flash the COMBINATION FW to your phone. After flashing is complete and the phone reboots, allow a few minutes for the phone to boot. If it doesn't boot/gets stuck at bootlogo, reboot/boot to recovery and wipe data/cache, and reboot again. MOST IMPORTANT THING! After the phone boots, go to Settings, enable Developer Options if not enabled, enable USB Debugging, and turn the device OFF using Power button. After the device shuts down, enter Download mode, open Odin, place all 4 files in their respective fields (BL,AP,CP,CSC), and here is the SECOND MOST IMPORTANT THING! In the CSC field place the CSC file that starts with HOME/HOME_CSC (There will/should be 2 different CSC files in the FW archive, one starting with CSC, and the other with HOME_CSC). After flashing is complete, allow the phone to boot normally (don't do anything, don't enter recovery/wipe data). If you followed my instructions correctly, after the phone boots, you should be able to finish the initial setup/skip all steps, without requiring any account. Then go to Settings, enable Developer Options, turn OEM Unlock ON, and finally factory reset the device to complete the process and start fresh.
Don't forget to hit THANKS button if this method worked fo you!
ATRAC3, do you have the combination files and firmware for the SAMSUNG S7 SM-G930FD please and thank you for your wonderful tutorial here.
my odin(tried on v3.12.5/v3.12.7/v3.13.1 ) keep failing while flashing HOME_CSC but will success with CSC, and still required to login google account, what is the issue here ? (are we supposed to insert the pit file by ATRAC3 ? )
flashing at the lastest FW G930FXXS2DRCE
phone version:SM-G930F
ATRAC3 said:
You CAN bypass FRP on later Samsung models using Combination FW. I have succsesfully done this with S8+/G955F, it should work with any device that has compatible Stock/Combinaton FW.. Here are the steps. Download a compatible STOCK ROM, and some similar COMBINATION FW (by similar i mean both FW to be with the same binary and same android version, duh..) Here are some firmware download links, but you can use whatever you want, according to your device.. G930F STOCK ROM/G930F Combination FW
First, using Odin flash the COMBINATION FW to your phone. After flashing is complete and the phone reboots, allow a few minutes for the phone to boot. If it doesn't boot/gets stuck at bootlogo, reboot/boot to recovery and wipe data/cache, and reboot again. MOST IMPORTANT THING! After the phone boots, go to Settings, enable Developer Options if not enabled, enable USB Debugging, and turn the device OFF using Power button. After the device shuts down, enter Download mode, open Odin, place all 4 files in their respective fields (BL,AP,CP,CSC), and here is the SECOND MOST IMPORTANT THING! In the CSC field place the CSC file that starts with HOME/HOME_CSC (There will/should be 2 different CSC files in the FW archive, one starting with CSC, and the other with HOME_CSC). After flashing is complete, allow the phone to boot normally (don't do anything, don't enter recovery/wipe data). If you followed my instructions correctly, after the phone boots, you should be able to finish the initial setup/skip all steps, without requiring any account. Then go to Settings, enable Developer Options, turn OEM Unlock ON, and finally factory reset the device to complete the process and start fresh.
Don't forget to hit THANKS button if this method worked fo you!
Click to expand...
Click to collapse
Hi mate ive used the G930FXXU2DRBE XSA Firmware and also G930FXXU2DRB6 firmware with the G930FXXU2ARA2 combination rom however it will not boot past the samsung logo the nad passes and is provisioned in top left corner and when plugged into the computer comes online with ADB bypass flasher but it just sits there even if i do a cache wipe and factory reset it comes up with a tango console error or something like that when reset then reboots back to samsung logo and when re installing firmware HOME-CSC will fail every time the only thing ive been able to put it down to is that (1) the firmware is FA_70 which is nougat OS and the combination rom is FA_60 MM or (2) my knox warranty bit is tripped and will not allow a samsung factory binary to be run on it, may i ask what would be the difference with the firmware you have listed to the firmware im already using with the combination rom ? Need to sort my imei number out with the factory nad asap dont have access to my TWRP backup for another week and a half, if it helps my device is not FRP locked and is oem unlocked.
Thanks
Matthew
P.S to all those whom have a bit 2 bootloader on S7 all the loopholes have been patched the only way is to use the combination files ive been through absolutely everything and tried everything this new bootloader update is impenetrable i can google unlock samsung S8 and S9 no dramas and with S9 the OEM lock option dissapears for a week if tampered with but still 15 minutes and its done this **** but got me goin loco holmes !!!!! Maybe they figured this out also as there is only bit 1 bootloaders for both the S8 and the S9 however with S8 i found a stock firmware that allows another way to unlock the device without the need to flash any combination rom.
So in short no hope now to unbrick our Samsung S7 SM-G930F/FD or what.....?
LEVY P said:
So in short no hope now to unbrick our Samsung S7 SM-G930F/FD or what.....?
Click to expand...
Click to collapse
If it gets stuck on the console error and wont reboot to download mode then hold the power button volume down button and power button for 40 seconds and it will re boot to download mode for stock firmware re installation in short basically no theres way to remove the FRP unless you can get the combination rom to boot which from what ive seen some will boot the binary but then it also depends if HOME_CSC will flash to keep usb debugging enabled to use adb bypass program im now using the new G930FXXU2ERE2 8.0 OREO so I've given up on the binary 2 nougat FRP unlocking for now might be best to wait a while for someone to receive a factory binary on the nougat or oreo when sent off and returned so it can be dumped and built into a flashable rom until then not much can be done and i may have to wait another week and a half for my EFS backup :'(
We will be waiting from u for the new combination file when out bro, our hope are hinged on u!
No one is coming up with any method about the bootloader binary 2 for the Samsung S7 G930FD...?
Sent from my SM-G930F using Xposed Modules
FRP can be done so easy from any GSM tool by combination, anyone need it it will be my pleasure to help

S8+ G955FXXU2CRED with Bootloader V2 - options for flashing, downgrade, FRP Unlock?

Short question: how can I downgrade or FRP unlock a S8+ G955F that is FRP locked and on very recent firmware?
Here are the details:
I am trying to assist a family member with a Galaxy S8+ (SM-G955F) that they have just purchased online. When purchasing it they were not told that FRP lock is on (FRP LOCK: ON) and OEM lock is on (OEM LOCK: ON). It was running Bootloader v2 on very recent stock firmware. It has been successfully flashed with BL_G955FXXU2CRED and AP_G955FXXU2CRED...
It was on G955FXXU2CRED firmware. I was able to successfully able to flash the Combination ROM COMBINATION_FA70_G955FXXU2ARE1 (full name COMBINATION_FA70_G955FXXU2ARE1_CL12792727_QB18097821_REV00_user_mid_noship.tar)
With combination rom, it seemed that I could enable USB Debugging, and also follow the steps for *#0808# IME to enable the appropriate mode for adb codes to be entered. I was able to find the device with 'adb devices', and I thought that the FRP unlock codes on the command line worked. But after re-flashing to the current Stock Firmware again, FRP lock was still there.
It seems I need to downgrade to Nougat 7.0, but I am on Bootloader V2. Odin identifies it by a FAIL with binary not matched (2 vs 1). So it seems that if I could get a method to keep Bootloader V2 and install Stock Firmware for Android 7.0 Nougat, I would be halfway there to fixing the FRP problem. However, I can't find any firmware or ROMs for G955F that includes Bootloader V2. This is identified by a U2 in the firmware name, like: G955FXXU2CRED . Is there a way to keep the BL Bootloader V2 but install AP ROM from Nougat?
I have spent many hours on this so far, and I just wanted to say thank you to all you guys who are helping on XDA, I really appreciate it. I have read about 7 day waiting periods for OEM UNLOCK but I don't see how it applies, as I can't do anything aside from use Combination ROM, use Odin, or go to the FRP locked FW which seems to be a dead end?
If there was a reliable method for rooting this G955F device with this G955FXXU2CRED firmware, I would be open to trying it.
details
Another note: AP SW Rev is identified as B:2 K:1 S:1
I don't think once a phone has the boot loader CRED, that the phone can be downgraded. Hope I am wrong.
JeffDC said:
I don't think once a phone has the boot loader CRED, that the phone can be downgraded. Hope I am wrong.
Click to expand...
Click to collapse
I think you are right. The combination ROM seems to built on selinux version 7.
I think I need to root with twrp. But first I need to enable OEM unlock. I'm not sure if that will be possible with combination ROM or if I should flash latest stock and then wait 7 days??
same problem here... If an solution available pls write here
anonan said:
I think you are right. The combination ROM seems to built on selinux version 7.
I think I need to root with twrp. But first I need to enable OEM unlock. I'm not sure if that will be possible with combination ROM or if I should flash latest stock and then wait 7 days??
Click to expand...
Click to collapse
Flashing stock rom and waiting 7 days would be the safe option.
I am not exactly sure what you are trying to achieve.
https://www.samsung.com/us/support/frp/
anonan said:
I think you are right. The combination ROM seems to built on selinux version 7.
I think I need to root with twrp. But first I need to enable OEM unlock. I'm not sure if that will be possible with combination ROM or if I should flash latest stock and then wait 7 days??
Click to expand...
Click to collapse
I think I read someone on CarHDRom who flashed the rom via TWRP, and then when the phone booted into system for the first time at setting up, they changed the date to 8 days earlier, and when the phone setup was completed and booted into system, the OEM unlock was available.
Re: CRED I believe once it has been installed on a phone, you can not go back to a previous version (pre CRED).
JeffDC said:
I think I read someone on CarHDRom who flashed the rom via TWRP, and then when the phone booted into system for the first time at setting up, they changed the date to 8 days earlier,.
Click to expand...
Click to collapse
I wonder if I can do this date trick with combination FW to enable OEM unlock.
anonan said:
I wonder if I can do this date trick with combination FW to enable OEM unlock.
Click to expand...
Click to collapse
It seems there are a few solutions to frp if you can selectively restore flash files. It looks like Samsung tool Pro can do this, but is there any free adb method?
http://forum.gsmhosting.com/vbb/f453/new-solution-remove-frp-s8-plus-sm-g955f-last-security-2422242/
Especially this http://forum.gsmhosting.com/vbb/f453/g955f-rev-2-frp-100-no-box-2417931/
Hi, could you send me a link of the combination firmware please Can't find it anywhere My email address is [email protected] I currently have similar experience of yours I thought everythings gonna be okay but it was too good to be true Help
anonan said:
Short question: how can I downgrade or FRP unlock a S8+ G955F that is FRP locked and on very recent firmware?
Here are the details:
I am trying to assist a family member with a Galaxy S8+ (SM-G955F) that they have just purchased online. When purchasing it they were not told that FRP lock is on (FRP LOCK: ON) and OEM lock is on (OEM LOCK: ON). It was running Bootloader v2 on very recent stock firmware. It has been successfully flashed with BL_G955FXXU2CRED and AP_G955FXXU2CRED...
It was on G955FXXU2CRED firmware. I was able to successfully able to flash the Combination ROM COMBINATION_FA70_G955FXXU2ARE1 (full name COMBINATION_FA70_G955FXXU2ARE1_CL12792727_QB18097821_REV00_user_mid_noship.tar)
With combination rom, it seemed that I could enable USB Debugging, and also follow the steps for *#0808# IME to enable the appropriate mode for adb codes to be entered. I was able to find the device with 'adb devices', and I thought that the FRP unlock codes on the command line worked. But after re-flashing to the current Stock Firmware again, FRP lock was still there.
It seems I need to downgrade to Nougat 7.0, but I am on Bootloader V2. Odin identifies it by a FAIL with binary not matched (2 vs 1). So it seems that if I could get a method to keep Bootloader V2 and install Stock Firmware for Android 7.0 Nougat, I would be halfway there to fixing the FRP problem. However, I can't find any firmware or ROMs for G955F that includes Bootloader V2. This is identified by a U2 in the firmware name, like: G955FXXU2CRED . Is there a way to keep the BL Bootloader V2 but install AP ROM from Nougat?
I have spent many hours on this so far, and I just wanted to say thank you to all you guys who are helping on XDA, I really appreciate it. I have read about 7 day waiting periods for OEM UNLOCK but I don't see how it applies, as I can't do anything aside from use Combination ROM, use Odin, or go to the FRP locked FW which seems to be a dead end?
If there was a reliable method for rooting this G955F device with this G955FXXU2CRED firmware, I would be open to trying it.
Click to expand...
Click to collapse
anonan said:
It seems there are a few solutions to frp if you can selectively restore flash files. It looks like Samsung tool Pro can do this, but is there any free adb method?
http://forum.gsmhosting.com/vbb/f453/new-solution-remove-frp-s8-plus-sm-g955f-last-security-2422242/
Especially this http://forum.gsmhosting.com/vbb/f453/g955f-rev-2-frp-100-no-box-2417931/
Click to expand...
Click to collapse
It worked! Flashed the Comb file with Odin and do what he does in the video, then flashed the Stock G955FXXU2CRED and now its unlocked I dont know how i did this but its worked!
darknagel said:
It worked! Flashed the Comb file with Odin and do what he does in the video, then flashed the Stock G955FXXU2CRED and now its unlocked I dont know how i did this but its worked!
Click to expand...
Click to collapse
Excellent.
I still can't get this to work. Have you purchased Samsung tool Pro to do the flashing of individual boot files? What version?
Hi there. I already bypassed the frp.. If you need. Hp with android 8.0 even with the binary 2. I have some comb files and working stock roms through odin. Feel free to pm me via my email [email protected]. Thanks!
how
darknagel said:
It worked! Flashed the Comb file with Odin and do what he does in the video, then flashed the Stock G955FXXU2CRED and now its unlocked I dont know how i did this but its worked!
Click to expand...
Click to collapse
Hi
Can you let me know the steps as i am trying but i cant flash the stock firmware after the factory binary
thx
oz_ezekiel said:
Hi
Can you let me know the steps as i am trying but i cant flash the stock firmware after the factory binary
thx
Click to expand...
Click to collapse
Download latest odin and try again. I too got stuck in similar situation. Realised the issue is due to Odin. If you are using latest and encountered this error, try one version earlier.
I too can confirm that the combination-ROM works like a charm with odin. FRP kinda unlocked itself

[Resolved] #Solved# Any Possible Solution to Downgrade Back to Nougat?

Hello all
Been a member here for some time now and have a perplexing issue.
I upgraded a Samsung Device SM T395 to OS Pie 9 and decided I didn't like it. (There are no other posts with help on this matter)
I kept the STOCK roms Nougat 7.1 and Oreo 8 and want to put Nougat 7.1 back on my device , but is proving difficult using ODIN 13.3.1 or any other version of Odin. The result is FAIL, that's using a combination of AP, CSC, CP and BL.
I managed to get Oreo 8 back on it, but want Nougat 7.1 original installed instead.
Can anyone tell me can ADB Fastboot be used to Flash a Stock Rom back on a Samsung Device or is Odin the only method?
I know there are other similar programs like QFIL and Qualcomm that I have used for the Mi Max brand devices.
The device was rooted with Nougat 7.1 originally and I have USB debug set and FRP / OEM lock off also. So there's no problem there.
The last resort (stupidly expensive idea :crying is for me to buy another exact device that has Nougat 7 installed when boxed up!
I don't see how upgrading to Pie 9 and then wanting to go back to the original factory installed rom is a big problem, can anyone explain?
Would a CUSTOM Nougat 7.1 rom work if installed via TWRP ?
I have also come across this COMBINATION Software https://samsungcombinationfile.com/samsung-sm-t395 that is supposed to allow the downgrading of Android software, but hasn't worked as I had been lead to believe.
https://combinationfirmware.com/combination-samsung-galaxy-tab-active/
Thanks for reading :good:
tsam19 said:
Hello all
Been a member here for some time now and have a perplexing issue.
I upgraded a Samsung Device SM T395 to OS Pie 9 and decided I didn't like it. (There are no other posts with help on this matter)
I kept the STOCK roms Nougat 7.1 and Oreo 8 and want to put Nougat 7.1 back on my device , but is proving difficult using ODIN 13.3.1 or any other version of Odin. The result is FAIL, that's using a combination of AP, CSC, CP and BL.
I managed to get Oreo 8 back on it, but want Nougat 7.1 original installed instead.
Can anyone tell me can ADB Fastboot be used to Flash a Stock Rom back on a Samsung Device or is Odin the only method?
I know there are other similar programs like QFIL and Qualcomm that I have used for the Mi Max brand devices.
The device was rooted with Nougat 7.1 originally and I have USB debug set and FRP / OEM lock off also. So there's no problem there.
The last resort (stupidly expensive idea :crying is for me to buy another exact device that has Nougat 7 installed when boxed up!
I don't see how upgrading to Pie 9 and then wanting to go back to the original factory installed rom is a big problem, can anyone explain?
Would a CUSTOM Nougat 7.1 rom work if installed via TWRP ?
I have also come across this COMBINATION Softwarehttps://samsungcombinationfile.com/samsung-sm-t395 that is supposed to allow the downgrading of Android software, but hasn't worked as I had been lead to believe.
https://combinationfirmware.com/combination-samsung-galaxy-tab-active/
Thanks for reading :good:
Click to expand...
Click to collapse
Samsung firmwares can not be downgraded. This is due to your bootloader version number. The bootloader version is the 5th number from the right of the firmware being downloaded. You can also check in setting - about phone - software info - baseband version ( 5th number from right). You can also tell bootloader number in download (Odin) mode with a line saying AP SWREV B:? : K? : S?. The B is your bootloader number.
Combination firmware works on the same principle in regards to bootloader numbers.
You can only flash the same or higher bootloaders version numbers.
Custom roms will work as long as the bootloader version number is the same ( or higher ) than what is on you phone.
spawnlives said:
Samsung firmwares can not be downgraded. This is due to your bootloader version number. The bootloader version is the 5th number from the right of the firmware being downloaded. You can also check in setting - about phone - software info - baseband version ( 5th number from right). You can also tell bootloader number in download (Odin) mode with a line saying AP SWREV B:? : K? : S?. The B is your bootloader number.
Combination firmware works on the same principle in regards to bootloader numbers.
You can only flash the same or higher bootloaders version numbers.
Custom roms will work as long as the bootloader version number is the same ( or higher ) than what is on you phone.
Click to expand...
Click to collapse
RE: spawnlives. Many thanks for clearing that up, I now understand. Like many other people I have been trying to mix and match BL files from different OS variants to try and trick the device into accepting the main Nougat AP file via Odin, but nothing works.
These NEW combination files suggest that it is possible to downgrade the BOOTLOADER files on certain devices. However I downloaded all that was available for my device and tried the lot and found the only ROM that would flash correctly and properly was the latest one with the Binary 4 Bootloader. The rest would not register in Odin due to MD5 binary error messages.
In download mode my device AP SWREV B:4 K:2 S:2. ( So I have binary 4 which was released in January 2019, I believe). and this must have been updated when I updated to OS 9 Pie , using all the AP, CSC , BL and CP files.
So as you say, the answer is either , look for a Nougat 7.1 rom with a BL file that has a BINARY 4 code. Or buy another device that has the original Nougat 7.1 installed, which is silly really. :laugh:
Thanks :good:
tsam19 said:
spawnlives said:
RE: spawnlives. Many thanks for clearing that up, I now understand. Like many other people I have been trying to mix and match BL files from different OS variants to try and trick the device into accepting the main Nougat AP file via Odin, but nothing works.
These NEW combination files suggest that it is possible to downgrade the BOOTLOADER files on certain devices. However I downloaded all that was available for my device and tried the lot and found the only ROM that would flash correctly and properly was the latest one with the Binary 4 Bootloader. The rest would not register in Odin due to MD5 binary error messages.
In download mode my device AP SWREV B:4 K:2 S:2. ( So I have binary 4 which was released in January 2019, I believe). and this must have been updated when I updated to OS 9 Pie , using all the AP, CSC , BL and CP files.
So as you say, the answer is either , look for a Nougat 7.1 rom with a BL file that has a BINARY 4 code. Or buy another device that has the original Nougat 7.1 installed, which is silly really. :laugh:
Thanks :good:[/
The best you can do is roll back to Oreo. A new phone running nougat would be the best choice. I don't use custom roms but they all seem to keep up to the latest version. I have not seen one that ( latest version ) that is nougat favoured.
Click to expand...
Click to collapse
Click to expand...
Click to collapse
spawnlives said:
tsam19 said:
spawnlives said:
RE: spawnlives. Many thanks for clearing that up, I now understand. Like many other people I have been trying to mix and match BL files from different OS variants to try and trick the device into accepting the main Nougat AP file via Odin, but nothing works.
These NEW combination files suggest that it is possible to downgrade the BOOTLOADER files on certain devices. However I downloaded all that was available for my device and tried the lot and found the only ROM that would flash correctly and properly was the latest one with the Binary 4 Bootloader. The rest would not register in Odin due to MD5 binary error messages.
In download mode my device AP SWREV B:4 K:2 S:2. ( So I have binary 4 which was released in January 2019, I believe). and this must have been updated when I updated to OS 9 Pie , using all the AP, CSC , BL and CP files.
So as you say, the answer is either , look for a Nougat 7.1 rom with a BL file that has a BINARY 4 code. Or buy another device that has the original Nougat 7.1 installed, which is silly really. :laugh:
Thanks :good:[/
The best you can do is roll back to Oreo. A new phone running nougat would be the best choice. I don't use custom roms but they all seem to keep up to the latest version. I have not seen one that ( latest version ) that is nougat favoured.
Click to expand...
Click to collapse
RE:spawnlives
Yes having researched the total list of softwares for the SM-T395 device, it seems the BL was updated to 4 on the 2nd roll out of Oreo 8.1. And having checked ALL stock Nougat variants, there was never any release of 7.1 with a bootloader binary 4!
I presume the BL Binary version is the 5 character from the right on the picture. (underlined red) :good:
It would make sense for Samsung to give the end user a choice what software they want, by keeping the BL version the same or giving a choice of BL selections to allow upgrade or downgrade.
Anyway, I rolled back to Oreo 8.1 with the binary 4 BL. And unfortunately there aren't many CUSTOM roms , nor a working TWRP for the Samsung Galaxy Active Tab2.
Thanks again :good:
Click to expand...
Click to collapse
Click to expand...
Click to collapse
tsam19 said:
spawnlives said:
tsam19 said:
RE:spawnlives
Yes having researched the total list of softwares for the SM-T395 device, it seems the BL was updated to 4 on the 2nd roll out of Oreo 8.1. And having checked ALL stock Nougat variants, there was never any release of 7.1 with a bootloader binary 4!
I presume the BL Binary version is the 5 character from the right on the picture. (underlined red) :good:
It would make sense for Samsung to give the end user a choice what software they want, by keeping the BL version the same or giving a choice of BL selections to allow upgrade or downgrade.
Anyway, I rolled back to Oreo 8.1 with the binary 4 BL. And unfortunately there aren't many CUSTOM roms , nor a working TWRP for the Samsung Galaxy Active Tab2.
Thanks again :good:
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Click to collapse
Yes the bootloader is 5th from the right.
I don't own a tab2. If no work twrp can be found and you want to at least have root try using magisk and used the patch root method.
Also to avoid possible upgrade turn off automatic updates in setting - software update as well as in developer option - auto update system.
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spawnlives said:
tsam19 said:
spawnlives said:
Yes the bootloader is 5th from the right.
I don't own a tab2. If no work twrp can be found and you want to at least have root try using magisk and used the patch root method.
Also to avoid possible upgrade turn off automatic updates in setting - software update as well as in developer option - auto update system.
Click to expand...
Click to collapse
Have rooted the device no problem with magisk and patching the original boot img file. Then flashing patched boot img via odin. Causing device verification to need to reformat the device, resulting in correct root.
Once a device , this device is rooted, no official updates can be installed anyway. When you try to uodate software, a pop up shows as the device recognises the software has been modified.
As for TWRP there ISN'T any version of TWRP available for the Samsung Galaxy Active Tab2 (SM-T395). I have even emailed the makers , developers of TWRP why there isn't one in their device inventory list on their webpage.
So no TWRP, and NO custom roms either for this model.
My concern , was all about finding a valid , safe way to downgrade back to original Nougat 7.1. And until someone can produce a working image with a BL with binary 4. Then there's only one optiin and that is to buy another untampered device with Nougat 7.1 out of the box and leave it un updated. :good:
Thanks for replying.
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tsam19 said:
Hello all
Been a member here for some time now and have a perplexing issue.
I upgraded a Samsung Device SM T395 to OS Pie 9 and decided I didn't like it. (There are no other posts with help on this matter)
I kept the STOCK roms Nougat 7.1 and Oreo 8 and want to put Nougat 7.1 back on my device , but is proving difficult using ODIN 13.3.1 or any other version of Odin. The result is FAIL, that's using a combination of AP, CSC, CP and BL.
I managed to get Oreo 8 back on it, but want Nougat 7.1 original installed instead.
Can anyone tell me can ADB Fastboot be used to Flash a Stock Rom back on a Samsung Device or is Odin the only method?
I know there are other similar programs like QFIL and Qualcomm that I have used for the Mi Max brand devices.
The device was rooted with Nougat 7.1 originally and I have USB debug set and FRP / OEM lock off also. So there's no problem there.
The last resort (stupidly expensive idea :crying is for me to buy another exact device that has Nougat 7 installed when boxed up!
I don't see how upgrading to Pie 9 and then wanting to go back to the original factory installed rom is a big problem, can anyone explain?
Would a CUSTOM Nougat 7.1 rom work if installed via TWRP ?
I have also come across this COMBINATION Software https://samsungcombinationfile.com/samsung-sm-t395 that is supposed to allow the downgrading of Android software, but hasn't worked as I had been lead to believe.
https://combinationfirmware.com/combination-samsung-galaxy-tab-active/
Thanks for reading :good:
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Click to collapse
To answer your question of how is downgrading such a big problem, it is due to security reasons, to keep your device as secure as possible with the newest available software and the latest security updates.
Sent from my SM-S767VL using Tapatalk

Someone HELP!!!

Hi all,
I'm having a nightmare of a time with my Galaxy S7... For some unknown reason I decided to root my phone about 2 months ago using CF Auto Root.. worked great.. This morning, was having bad lag issues, so I restarted the phone.. as soon as the Samsung logo came up, I got a red message at the top of the screen saying "Custom Binary locked by FRP".. kind of freaked out and booted the phone into Recovery mode.. wiped Cache and wiped phone (to go back to factory setting I guess).. restarted... since then, I had no boot.. it did loop for a while as I was trying to charge the phone.. but that's it.
Now, the only way the phone will power on is if I plug it into my computer in Download Mode. I am trying to flash the ROM, custom or stock, but Odin fails almost as soon as it starts the sboot.bin and the phone screen shows "SW REV. CHECK FAIL (BOOTLOADER) DEVICE: 6, BINARY: 1".. Also, When I try to power on the phone, it HAS to be plugged in to my computer or charger cable and it just loops with a message at the top of the screen.
I can't do anything with this phone and cant find any solutions online... please help! :crying:
PM me for images of all screens please
I had the some problem while playing with my handset I switched off OEM unlock for some reason under developer option..
Next time i reset my handset it stuck on that warning
You need to download combination file, flash it with odin, then unlock developer mode, toggle OEM unlock, than flash back your current firmware, or if you have full twrp back up restore it
JayMor81 said:
Hi all,
I'm having a nightmare of a time with my Galaxy S7... For some unknown reason I decided to root my phone about 2 months ago using CF Auto Root.. worked great.. This morning, was having bad lag issues, so I restarted the phone.. as soon as the Samsung logo came up, I got a red message at the top of the screen saying "Custom Binary locked by FRP".. kind of freaked out and booted the phone into Recovery mode.. wiped Cache and wiped phone (to go back to factory setting I guess).. restarted... since then, I had no boot.. it did loop for a while as I was trying to charge the phone.. but that's it.
Now, the only way the phone will power on is if I plug it into my computer in Download Mode. I am trying to flash the ROM, custom or stock, but Odin fails almost as soon as it starts the sboot.bin and the phone screen shows "SW REV. CHECK FAIL (BOOTLOADER) DEVICE: 6, BINARY: 1".. Also, When I try to power on the phone, it HAS to be plugged in to my computer or charger cable and it just loops with a message at the top of the screen.
I can't do anything with this phone and cant find any solutions online... please help! :crying:
PM me for images of all screens please
Click to expand...
Click to collapse
This problem appears on the forum over and over. Its a direct result of not understanding what type of S7 you have and what you need to do before modification.
The error you have in Odin means the firmware you are trying to flash is older than the bootloader file on your device. You can never downgrade a bootloader only upgrade.
In your case you need to flash a firmware version 6 or above for your device. So if you have a branded T Mobile for example you will need to download and flash T Mobile firmware version 6 or above. The firmware must also be for your region where you live.
The FRP lock is because you didn't sign out of, or remove the Google account on the device before modification. Its a security feature. It will still appear after you've flashed firmware but as long as you know the email and password the phone will start fine.
cooltt said:
This problem appears on the forum over and over. Its a direct result of not understanding what type of S7 you have and what you need to do before modification.
The error you have in Odin means the firmware you are trying to flash is older than the bootloader file on your device. You can never downgrade a bootloader only upgrade.
In your case you need to flash a firmware version 6 or above for your device. So if you have a branded T Mobile for example you will need to download and flash T Mobile firmware version 6 or above. The firmware must also be for your region where you live.
The FRP lock is because you didn't sign out of, or remove the Google account on the device before modification. Its a security feature. It will still appear after you've flashed firmware but as long as you know the email and password the phone will start fine.
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Click to collapse
Dammit.. I tried to put as much detail as possible in there lol.. obviously I forgot some.. My mistake the Galaxy s7 that I am using is a Rogers Mobile (Canada) SM-G930W8. As for not signing out before modification, omfg, that makes perfect sense.. didn't even think of doing that before rooting.. I appreciate the help!! I will give this a go and see what outcome I get.. Thanks!
[/COLOR]That was nice of you to respond so helpfully, despite you having seen the scenario posted over and over.
cooltt said:
This problem appears on the forum over and over. Its a direct result of not understanding what type of S7 you have and what you need to do before modification.
The error you have in Odin means the firmware you are trying to flash is older than the bootloader file on your device. You can never downgrade a bootloader only upgrade.
In your case you need to flash a firmware version 6 or above for your device. So if you have a branded T Mobile for example you will need to download and flash T Mobile firmware version 6 or above. The firmware must also be for your region where you live.
The FRP lock is because you didn't sign out of, or remove the Google account on the device before modification. Its a security feature. It will still appear after you've flashed firmware but as long as you know the email and password the phone will start fine.
Click to expand...
Click to collapse
Can't make or receive calls
Please I need help my I rooted my S7 (flat) flashed the original OS with odin Installed Twrp flashed Andriod 9 and since then I can't make or receive calls wifi seems fine. Someone please come to my rescue:crying:
Cesilina said:
Please I need help my I rooted my S7 (flat) flashed the original OS with odin Installed Twrp flashed Andriod 9 and since then I can't make or receive calls wifi seems fine. Someone please come to my rescue:crying:
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Click to collapse
The S7 didn't receive Android 9 so the ROM is a custom one. Any issues with custom ROM's should be asked on the ROM thread itself where you got the ROM from. It's quite normal for custom ROM'S to have bugs.
You can try flashing the ROM (Android 9 Pie) again to see if it works. If not there are several different A9 ROM's to choose from.
cooltt said:
The S7 didn't receive Android 9 so the ROM is a custom one. Any issues with custom ROM's should be asked on the ROM thread itself where you got the ROM from. It's quite normal for custom ROM'S to have bugs.
You can try flashing the ROM (Android 9 Pie) again to see if it works. If not there are several different A9 ROM's to choose from.
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Click to collapse
Thank you for reply. I have tried atleast 4 different custom ROMs but to avail
Cesilina said:
Thank you for reply. I have tried atleast 4 different custom ROMs but to avail
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Click to collapse
Do you still have an imei number listed in settings?
Can't make or receive calls
cooltt said:
Do you still have an imei number listed in settings?
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Click to collapse
Yes please I still have an IMEI number

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