Downgrade SM-G955U1 to nougat pains... - Samsung Galaxy S8+ Questions & Answers

I have a SM-G955U1 I'm trying to downgrade to Nougat since Oreo totally borked the bluetooth in both my cars (both BMW's - audio connects ~50% of the time, phone book no longer transfers).
I'm failing to flash G955U1UES2AQL1 with Prince Cosmey Odin v3.12. The error I keep receiving is:
SW REV CHECK FAIL : [abl]Fused 3 > Binary 2
I've also tried to flash G955USQS2BRB1.
A quick Google says it's because I'm trying to downgrade versions, but doesn't this model have an unlocked bootloader?
What am I doing wrong? Any guidance is greatly appreciated.

What version are you currently on?
Just my guess is that your on v3 not a v2 bootloader hint the error. The secure bootloader is saying it's a 3 and the firmware binary is saying I'm a 2. Since they dont match no go. Same if you tried to flash a 1 you would probably see Fused 3 > Binary 1

bmxmike said:
What version are you currently on?
Just my guess is that your on v3 not a v2 bootloader hint the error. The secure bootloader is saying it's a 3 and the firmware binary is saying I'm a 2. Since they dont match no go. Same if you tried to flash a 1 you would probably see Fused 3 > Binary 1
Click to expand...
Click to collapse
any solution plz
I desperately need downgrade from oreo to nougat version and this is my problem, the bootloader version...
there is something like nougat with bootloader 2could be official (preferably) or custom rom (last option)...

Related

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

SM-G955U1 Stuck trying to downgrade to Nougat

I have a SM-G955U1 I'm trying to downgrade to Nougat since Oreo totally borked the bluetooth in both my cars (both BMW's - audio connects ~50% of the time, phone book no longer transfers).
I'm failing to flash G955U1UES2AQL1 with Prince Cosmey Odin v3.12. The error I keep receiving is:
SW REV CHECK FAIL : [abl]Fused 3 > Binary 2
I've also tried to flash G955USQS2BRB1.
A quick Google says it's because I'm trying to downgrade versions, but doesn't this model have an unlocked bootloader?
What am I doing wrong? Any guidance is greatly appreciated.
What firmware are you on now? If your on bootloader 2 there's no going back to bootloader 1 which is nougat. Bootloader's are locked on U phones, once you upgrade there's no going back........they took that directly from IOS book of being a holes.
str8shot said:
I have a SM-G955U1 I'm trying to downgrade to Nougat since Oreo totally borked the bluetooth in both my cars (both BMW's - audio connects ~50% of the time, phone book no longer transfers).
I'm failing to flash G955U1UES2AQL1 with Prince Cosmey Odin v3.12. The error I keep receiving is:
SW REV CHECK FAIL : [abl]Fused 3 > Binary 2
I've also tried to flash G955USQS2BRB1.
A quick Google says it's because I'm trying to downgrade versions, but doesn't this model have an unlocked bootloader?
What am I doing wrong? Any guidance is greatly appreciated.
Click to expand...
Click to collapse
Sounds like your on the version 3 bootloader who I believe only noug firmware is the binary all the rest is Oreo. You may be outs luck until either root to fix or Samsung releases a fix
Huh. That sucks. I bought the unlocked version of the phone thinking it'd be totally unlocked (bootloader and all).
Might be time for a pixel. :/
I'm pretty sure that you cannot unlock your snapdragon bootloader kn your US device. You have a "Sim unlocked" device that will work with any provider.
/\- When a manufacturer says "Unlocked" all they mean is sim unlocked. No going back right now, best you could do is flash PartyCyborg Rom for Snap and that will get you to nougat as well as root, since this does work with v3; but you'll only be able to charge to 80%.
Delete
bmxmike said:
/\- When a manufacturer says "Unlocked" all they mean is sim unlocked. No going back right now, best you could do is flash PartyCyborg Rom for Snap and that will get you to nougat as well as root, since this does work with v3; but you'll only be able to charge to 80%.
Click to expand...
Click to collapse
I desperately need downgrade from oreo to nougat version and this is my problem, the bootloader version...
there is something like nougat with bootloader 2 could be official (preferably) or custom rom (last option)
That's the issue. There is no bootloader 3 nougat, you are on 3 not 2 that's the issue with your downgrade. The only thing I see working is flashing PartyCyborg Rom which works on v3 bootloader and pretty sure is still nougat. Go check his thread as I know there are a few things like o only being able to charge to 80%

Combination Firmware A8 (2018) SW rev check fails device 3 binary 2.

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.

[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:
Click to expand...
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.
Click to expand...
Click to collapse
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
Click to expand...
Click to collapse
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:
Click to expand...
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

SM-G930P fails to flash/root

I've been trying to root my Galaxy s7 - G930P, but it fails every time,
OEM unlock is set to true, USB debugging enabled, PC whitelisted. //not sure if that last one matters
Device information:
samsung/heroqltespr,
android: 8.0.0,
firmware: R16NW/G930PVPSBCTA1
Snapdragon
I've followed a few tutorials, First I tried https://bit.ly/3fXMHwa (The original link was censored for some reason.), but it failed. No error in odin.
The second was https://forum.xda-developers.com/galaxy-s7/how-to/samsung-galaxy-s7-sm-g930p-root-xposed-t3502829, Also a fail. This time the error was something like FAIL! (auth) I've got a snip for this one https://cdn.discordapp.com/attachments/710567590342426684/712349332757544991/unknown.png
Both times there's been an error on the phone, SW REV CHECK FAIL : Fused 11 > Binary 1
Is there any kind of documentation for odin errors?
ADB drivers & environment are properly installed, odin run as administrator when I use it, I removed google accounts on the device, I think I saw somewhere google accounts might interfere with flashing.
I also tried flashing TWRP , but the error was 'secure check fail : recovery'
My friends and I don't know what to do, any suggestions? I can't flash any firmware other than current.
I was able to flash my current firmware.
I can't think if I missed anything, Alexa#9029 is my discord tag if anything more is needed.
Killerdoghound said:
I've been trying to root my Galaxy s7 - G930P, but it fails every time,
OEM unlock is set to true, USB debugging enabled, PC whitelisted. //not sure if that last one matters
Device information:
samsung/heroqltespr,
android: 8.0.0,
firmware: R16NW/G930PVPSBCTA1
Snapdragon
I've followed a few tutorials, First I tried https://bit.ly/3fXMHwa (The original link was censored for some reason.), but it failed. No error in odin.
The second was https://forum.xda-developers.com/galaxy-s7/how-to/samsung-galaxy-s7-sm-g930p-root-xposed-t3502829, Also a fail. This time the error was something like FAIL! (auth) I've got a snip for this one https://cdn.discordapp.com/attachments/710567590342426684/712349332757544991/unknown.png
Both times there's been an error on the phone, SW REV CHECK FAIL : Fused 11 > Binary 1
Is there any kind of documentation for odin errors?
ADB drivers & environment are properly installed, odin run as administrator when I use it, I removed google accounts on the device, I think I saw somewhere google accounts might interfere with flashing.
I also tried flashing TWRP , but the error was 'secure check fail : recovery'
My friends and I don't know what to do, any suggestions? I can't flash any firmware other than current.
I was able to flash my current firmware.
I can't think if I missed anything, Alexa#9029 is my discord tag if anything more is needed.
Click to expand...
Click to collapse
The failure "Rev Check Fail" means the root file your trying to flash is for a much earlier version of the firmware which no longer works.
You need to find a root method which works on Version 11 of the firmware. Fused=firmware version on the phone, Binary=firmware/root version your trying to use. You cannot flash firmware or root which is older than which is already on the device.
It a pain in the ass I'm afraid. The S7 is an older phone and developers have moved on creating roots for the newer phones.
Thanks
Is there any way to root? I don't really care how complex or difficult, I just want root access. If not is there a way to change boot animation without root?
Thanks for the information though, now I at least understand what the error means. For some reason I can't find any docs on errors.
Any idea why flashing twrp won't work? Is it because it's also old?
I forgot to mention this in the original post:
---------------------------------
ODIN MODE (HIGH SPEED)
PRODUCT NAME: SM-G930P
CURRENT BINARY: Samsung Official
SYSTEM STATUS: Official
FRP LOCK: OFF
WARRENTY VOID: 0x0
QUALCOM SECUREBOOT: ENABLE
RP SWREV: B11(2.1.1.1.1) K11 S11
SECURE DOWNLOAD : ENABLE
//error
SECURE CHECK FAIL : recovery
---------------------------------
Error when flashing TWRP heroqltechn I picked this one because I know my devices is not Exynos,
PROCESSOR Type - Qualcomm Snapdragon 820
GPU - Adreno 530
dude s7 qualcomm models cant be rooted because of qualcomm secure boot and no one has made to break it
I also have the same cell phone SAMSUNG GALAXY S7 MODEL: G930P, ANDROID 8.0 OREO, FIRMWARE: G930PVPSBCTA1, I am also interested in having root access.
Does someone has the stock firmware for the SM-G930P? I'm stuck with a bricked one I think, It had a G930V rom installed, so I managed to reinstall it once and it got working for a week but with random reboots, and then it got stuck on bootloop till today, I've tried a lot of SM-G930P rom variants without luck, they install correctly but when it reboots, it says "recovery booting" and it never boots... I only know it is binary version 11, if i try to install any other binary version it will give me error..

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