Hey guys
After a lot of googling and trial and error . I failed several times and also had boot loops and also lost IMEI and SN. but I just found a working method to downgrade SAMSUNG devices.
Here I have used J7 2016. and I am 100% sure that this method should work on other devices bcoz I have not used any specific tool except Odin.. I would like to inform that I was on Latest Nougat version with Bootloader updated.
Curent Status is :-
Baseband :- J710FXXU5BRD4
Bootloader version :- J710FXXU5BRD5
PDA:- J710FXXU2APK6
CSC:- J710FODD2APK6
here baseband and bootloader are latest (7.0) but CSC and PDA are of 6.0.1.
So lets begin:-
We need
:-
1)ODIN
2)Nougat Firmware for your device.
3)J7 2016 4 file firmware of 6.0.1. you will find this on beow link.
https://forum.xda-developers.com/ga...rom-j7-2016-stock-rom-build-date-7th-t3515491
I would like you to check your original model number which is mentioned behind the battery of the phone.I am from india so mine is J710FN. so download the Nougat firmware from UPDATO. you might find J710F or J710MN or other version but download the exact variant. in some cases it can lead to IMEI loss. because you need correct BASEBAND.
SO now.
you have Nougat which can be flashed via ODIN in a single file package.
and Marshmallow which can also be flashed via ODIN but in 4 Files.
Step one.
Open ODIN and select AP. and browse the nougat firmware which is single file. Check AP box.
Step Two
Click on CSC and browser the CSC file of the marshmallow version which we downloaded from above link.
Untick Autoreboot from Options menu.
Step three
Connect phone in download mode and click START.
Step Four
After Flashing is complete the phone will not reboot. now disconnect the device. remove the battery. and start the download mode again.
Step FIVE.
Now click on reset in ODIN and select AP and CSC file of Marshmallow(CSC file 2nd time) . only 2 files not all of then. Click FLash.
Now your device will boot in 6.0.1.
and you have successfully downgraded you Samsung device.
FOLLOW EVERYTHING STEP BY STEP and it will work 100%. I myself found this after working for almost 2.5 months.
IF YOU HAVE 4 FILE FIRMWARES OF BOTH NOUGAT AND MARSHMALLOW. THEN FLASH THE
NOUGAT FIRMWARE BL,AP,CP OT NOUGAT AND CSC OF MARSHMALLOW AND THEN continue from step 4.
Thanks for sharing the method.
Any specific reason to downgrade ?? Like any performance or battery life improvement?
sandeepkumar0153 said:
Thanks for sharing the method.
Any specific reason to downgrade ?? Like any performance or battery life improvement?
Click to expand...
Click to collapse
Yeah Nougat version on Devices that are low on specifications like Samsung J5 2016 ,J7 2016 ,A5 and A7 2016 variants. There Dont run as fluid as the Marshmallow version. ESPECIALLY ON J5 which has a Quad core processor of 1.2ghz.
I have been dealing with all stuff since 7-8 years using Android devices since Galaxy Y. And till now i only used to refer or read on XDA. But I found that there are several people Struggling to downgrade fheir devices.
ANd due to bootloader Security it was nearly impossible to downgrade the OS. there are Lots of Fake Videos on youtube for downgrading Samaung OS.
And hence. As soon as I found this working I made an account and created a New Post. I was not able to post in Roms and Development Sections bcoz of 10 posts XDA policy.
Monkey 'D' Luffy said:
Yeah Nougat version on Devices that are low on specifications like Samsung J5 2016 ,J7 2016 ,A5 and A7 2016 variants. There Dont run as fluid as the Marshmallow version. ESPECIALLY ON J5 which has a Quad core processor of 1.2ghz.
I have been dealing with all stuff since 7-8 years using Android devices since Galaxy Y. And till now i only used to refer or read on XDA. But I found that there are several people Struggling to downgrade fheir devices.
ANd due to bootloader Security it was nearly impossible to downgrade the OS. there are Lots of Fake Videos on youtube for downgrading Samaung OS.
And hence. As soon as I found this working I made an account and created a New Post. I was not able to post in Roms and Development Sections bcoz of 10 posts XDA policy.
Click to expand...
Click to collapse
okay, i own a J5 2016 and i can understand what you said. that phone runs smooth with stock deodexed. but has some sluggish interface with custom roms of nougat.
Hi. Is it possible to downgrade J7 2016 J710FN from Android 8..1 to 6.0?? Thanks.
astronman said:
Hi. Is it possible to downgrade J7 2016 J710FN from Android 8..1 to 6.0?? Thanks.
Click to expand...
Click to collapse
Definitely. I just did it.
hawkeye147 said:
Definitely. I just did it.
Click to expand...
Click to collapse
How? I tried 100 times from 100 posts from internet and no success.
Related
Hi.
I have a G955U Galaxy S8+ AT&T Factory Unlocked on Android 7.0
Baseband Version: G955USQU1AQD9
Android Security Patch Level - April 1, 2017
I no longer live in the US, and currently in the Philippines. Phone works great and the signal is too and all, but I cannot get OTA updates.
Can I just download the firmware file in this thread and flash straight through ODIN, or do I need to follow another guide?
Thanks in advance
You can, however there are specific sequences to follow, so you have to update in firmware released order.
I encountered the same problem so I downloaded odin that worked for Nougat and loaded all version to BRB1 I think it is and then went to Oreo. Currently on CRC5.
Another note, when you are about to hit Oreo you will need to download the odin that works for Oreo. It can be found in the CRC5 thread.
Happy Updating
onedonrazor said:
You can, however there are specific sequences to follow, so you have to update in firmware released order.
I encountered the same problem so I downloaded odin that worked for Nougat and loaded all version to BRB1 I think it is and then went to Oreo. Currently on CRC5.
Another note, when you are about to hit Oreo you will need to download the odin that works for Oreo. It can be found in the CRC5 thread.
Happy Updating
Click to expand...
Click to collapse
Is this really necessary?
I want to update to Oreo as well but since I'm AT&T unlocked and not currently using AT&T network I'm stuck in the June software update so I'll have to flash like 7-8 firmware updates and each one being about 2-3 GB to download.
Also, is there any stock Samsung firmware I can download so I can avoid having to manually flash every software update? Or am I just stuck with the AT&T firmware?
Thanks in advance.
I'm also having this problem. Need to flash the updates through ODIN but I can't find every single stock file leading up to BR9 on this site. Do I really have flash them all? Or is there another way?
Hey so.. Phone's root bugged out yesterday and I downloaded twrp and decided I should upgrade it to Android 8.0 then root it. After many hours of failures I managed to flash a 8.0 but I couldn't make the CSC to work, since my phone is region locked to another country so I decided to go back to 7.0 and try again.. but now here it gets complicated because I really don't know what to do. I'm not sure how exactly to go back from 8.0 to 7.0.. Can someone give me detailed steps on what should I do.. I'd be very grateful!
PS. I don't know if I'm posting this in the right forum thread.
Here https://updato.com/how-to/how-to-install-an-official-samsung-stock-firmware-using-odin
Same site, or sammobile can be used to get the firmware files to flash with Odin
Note: The last version of 7.0 locked the ability to downgrade, I haven't gone to Oreo so can't confirm, but it ability to downgrade may also be removed from Oreo.
Beanvee7 said:
Here https://updato.com/how-to/how-to-install-an-official-samsung-stock-firmware-using-odin
Same site, or sammobile can be used to get the firmware files to flash with Odin
Note: The last version of 7.0 locked the ability to downgrade, I haven't gone to Oreo so can't confirm, but it ability to downgrade may also be removed from Oreo.
Click to expand...
Click to collapse
I can confirm, downgrading from Oreo 8.0 to Nougat 7.0 is possible, even without tripping knox.
It's just flashing the previous firmware with odin and factory reset the phone before first run and you're fine to go
the phone was initially on android Nougat 7.1.1, I updated it officially to android Oreo
after that, I flashed new STOCK ROM Oreo too, by Odin for the first time for this phone after unpacking and updating it from Nougat to Oreo
now I cannot flash anything by Odin TWRP, ROOT, STOCK ROM, COMBINATION FILE .... nothing pass
I can't even flash any other stock ROM beside the one i flashed before, either it's the same android version or not
odin always fail
I Waited 190 hours (more than 7 days) of continuous up time without restarting to have access and Remove FRP Lock but no luck at all, still the same
SEE ATTACHMENTS For Photos
SM-A530F/DS
Odin3 v3.13.1
Android 8.0.0 Oreo
Country / Region : Morocco (MWD)
PDA : A530FXXS4BSB1
Product Code : MWD
CSC : A530FOJM4BSB1
Phone : A530FXXU4BRL8
COMBINATION_OXM_FA71_A530FXXU4ASB1_BoxWares.tar
Which file are you trying to flash?
If I'm not wrong you could flash any firmware with version 4 or upper. For example you could not flash A530FXXU3BSA3 (Version 3) but it should be fine with A530FXXS4BSB1 (Version 4).
emovere said:
Which file are you trying to flash?
If I'm not wrong you could flash any firmware with version 4 or upper. For example you could not flash A530FXXU3BSA3 (Version 3) but it should be fine with A530FXXS4BSB1 (Version 4).
Click to expand...
Click to collapse
It looks like your trying to down grade to a version 3 and you can't do that.
Sorry wrong person.
---------- Post added at 01:37 PM ---------- Previous post was at 01:29 PM ----------
Pro Cal said:
the phone was initially on android Nougat 7.1.1, I updated it officially to android Oreo
after that, I flashed new STOCK ROM Oreo too, by Odin for the first time for this phone after unpacking and updating it from Nougat to Oreo
now I cannot flash anything by Odin TWRP, ROOT, STOCK ROM, COMBINATION FILE .... nothing pass
I can't even flash any other stock ROM beside the one i flashed before, either it's the same android version or not
odin always fail
I Waited 190 hours (more than 7 days) of continuous up time without restarting to have access and Remove FRP Lock but no luck at all, still the same
SEE ATTACHMENTS For Photos
SM-A530F/DS
Odin3 v3.13.1
Android 8.0.0 Oreo
Country / Region : Morocco (MWD)
PDA : A530FXXS4BSB1
Product Code : MWD
CSC : A530FOJM4BSB1
Phone : A530FXXU4BRL8
COMBINATION_OXM_FA71_A530FXXU4ASB1_BoxWares.tar
Click to expand...
Click to collapse
You can't flash twrp because your in prenormal state you have to wait 168 hour no reboots.
Are you trying to down grade to 7.1?
Samsung updated the binary from Nougat to oreo. Its impossible to downgrade. Its thr same with pie, you can downgrade to oreo for now as it still has the same binary on the latest security patch.
Dantar0 said:
Samsung updated the binary from Nougat to oreo. Its impossible to downgrade. Its thr same with pie, you can downgrade to oreo for now as it still has the same binary on the latest security patch.
Click to expand...
Click to collapse
You can from Pie to Oreo some country received Oreo now so they come with BL 4
emovere said:
Which file are you trying to flash?
If I'm not wrong you could flash any firmware with version 4 or upper. For example you could not flash A530FXXU3BSA3 (Version 3) but it should be fine with A530FXXS4BSB1 (Version 4).
Click to expand...
Click to collapse
thanks a lot for the feedback, appreciated
if I understood it correctly the version number is the tow characters that comes after XX like U3 or S4 right ?
how to know the version number you mentioned exactly ?
and what about TWRP then, why even TWRP won't pass
mchlbenner said:
It looks like your trying to down grade to a version 3 and you can't do that.
Sorry wrong person.
---------- Post added at 01:37 PM ---------- Previous post was at 01:29 PM ----------
You can't flash twrp because your in prenormal state you have to wait 168 hour no reboots.
Are you trying to down grade to 7.1?
Click to expand...
Click to collapse
actually I already did waited 190 of continuous up time, then after directly tried to flash TWRP and still no pass in Odin fail
I did tried to flash stock rom for 7.1.1 but even with same current version "Oreo" nothing pass
how can I know the version you mentioned please ?
Dantar0 said:
Samsung updated the binary from Nougat to oreo. Its impossible to downgrade. Its thr same with pie, you can downgrade to oreo for now as it still has the same binary on the latest security patch.
Click to expand...
Click to collapse
how to know please the exact binary version or locate ot on the PDA File for example PDA : A530FXXS4BSB1
Pro Cal said:
how to know please the exact binary version or locate ot on the PDA File for example PDA : A530FXXS4BSB1
Click to expand...
Click to collapse
For that, the binary is 4 (after the FXXS)
https://www.sammobile.com/firmwares/galaxy-a8/SM-A530F/MWD/
As you can see, Samsung updated the binary on the latest security update for your region. Its impossible to downgrade to a previous OS due to having different binaries. You'll also find that even though it's oreo, the binary updated from the January security patch to February's. Probably to make way for android 9 One UI.
The only option is to flash oreo but with the February security patch
Dantar0 said:
For that, the binary is 4 (after the FXXS)
https://www.sammobile.com/firmwares/galaxy-a8/SM-A530F/MWD/
As you can see, Samsung updated the binary on the latest security update for your region. Its impossible to downgrade to a previous OS due to having different binaries. You'll also find that even though it's oreo, the binary updated from the January security patch to February's. Probably to make way for android 9 One UI.
The only option is to flash oreo but with the February security patch
Click to expand...
Click to collapse
many thanks for the feedback and effort
so basically it means nougat is out of the question
and tell me please why country si important, I can flash any other firmware for another country as longer it the same binary version, right ?
and what about root for this binary version or TWRP why it won't pass either ?
Pro Cal said:
many thanks for the feedback and effort
so basically it means nougat is out of the question
and tell me please why country si important, I can flash any other firmware for another country as longer it the same binary version, right ?
and what about root for this binary version or TWRP why it won't pass either ?
Click to expand...
Click to collapse
You can flash a different regions firmware as long as you download the right variation. (SM-A530F)
Sorry but I don't know much about rooting this phone though
Pro Cal said:
thanks a lot for the feedback, appreciated
if I understood it correctly the version number is the tow characters that comes after XX like U3 or S4 right ?
how to know the version number you mentioned exactly ?
and what about TWRP then, why even TWRP won't pass
Click to expand...
Click to collapse
Read post if you had read before you jump this would not have happened.
You can't flash twrp because your in prenormal state you have to wait 168 hour no reboots.
Are you trying to down grade to 7.1?
mchlbenner said:
Read post if you had read before you jump this would not have happened.
You can't flash twrp because your in prenormal state you have to wait 168 hour no reboots.
Are you trying to down grade to 7.1?
Click to expand...
Click to collapse
I did read it and did answer you but it's you who didn't read mine otherwise you wouldnt repeat the same thing
*********************
actually I already did waited 190 of continuous up time, then after directly tried to flash TWRP and still no pass in Odin fail
I did tried to flash stock ROM for 7.1.1 but even with same current version "Oreo" nothing pass
Pro Cal said:
I did read it and did answer you but it's you who didn't read mine otherwise you wouldnt repeat the same thing
*********************
actually I already did waited 190 of continuous up time, then after directly tried to flash TWRP and still no pass in Odin fail
I did tried to flash stock ROM for 7.1.1 but even with same current version "Oreo" nothing pass
Click to expand...
Click to collapse
Is your phone branded.
Post this info screenshot example .
I will see if I can figure this out.
mchlbenner said:
Is your phone branded.
Post this info screenshot example .
I will see if I can figure this out.
Click to expand...
Click to collapse
Nop i dnt think so
Pro Cal said:
Nop i dnt think so
Click to expand...
Click to collapse
That as far that you can down grade to.
Hi.
I have a G955U Galaxy S8+ AT&T Factory Unlocked on Android 7.0
Baseband Version: G955USQU1AQC9
Android Security Patch Level - April 1, 2017
I no longer live in the US, and currently in the Philippines. Phone works great and the signal is too and all, but I cannot get OTA updates. Every time i try to update it says that its up to date.
I have tried different ways to update it that i read online, The latest one that I have tried is following the steps given from this Thread https://forum.xda-developers.com/att-galaxy-s8+/how-to/sprint-released-oreo-s8-s8-flashing-t3915872 but it gave me this output https://prnt.sc/oqjnp6
My phone is not rooted or anything just a normal phone. I am just trying to update it to the latest Android Version 9.0(Pie) , I just made this thread for the reason of maybe someone can help me on updating my phone.
Have you tried the patched odin?
Quickvic30 said:
Have you tried the patched odin?
Click to expand...
Click to collapse
Yes, I have I even tried updating through SD card and Smart Switch but none of it works, On Smart Switch it says that my device is up to date :QC9(ATT).
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.
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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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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.
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