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Downgrade Android 8 to 7 - Binary 3?

Hello,
I am attempting to downgrade from Android 8 to 7 on Galaxy S7. When I attempt to flash the old firmware I get the error 'Device 3 - Binary 2'. Does anyone know if there is a workaround for this yet?

DannySB1 said:
Hello,
I am attempting to downgrade from Android 8 to 7 on Galaxy S7. When I attempt to flash the old firmware I get the error 'Device 3 - Binary 2'. Does anyone know if there is a workaround for this yet?
Click to expand...
Click to collapse
Odin will not let you flashback to a previous boot loader version, you have to do it through TWRP. So either flash the nougat firmware with TWRP first or any nougat based rom, then flash nougat via odin which will remove root and TWRP.

cooltt said:
Odin will not let you flashback to a previous boot loader version, you have to do it through TWRP. So either flash the nougat firmware with TWRP first or any nougat based rom, then flash nougat via odin which will remove root and TWRP.
Click to expand...
Click to collapse
Are there any instructions for this?
Will secure apps (Banking etc) work again after removing root?

I was under the impression you could via Odin if OEM unlock was enabled, without needing TWRP or root. https://forum.xda-developers.com/s7-edge/how-to/guide-how-to-downgrade-android-oreo-8-0-t3821495
edit: As for banking, if you go root then flash back to stock you should have no issues. Even if you stay root, things like Magisk will hide root status from apps and pass safetynet. Your biggest issue would be the loss of Knox, which voids warranty and breaks some Samsung apps.

Beanvee7 said:
I was under the impression you could via Odin if OEM unlock was enabled, without needing TWRP or root. https://forum.xda-developers.com/s7-edge/how-to/guide-how-to-downgrade-android-oreo-8-0-t3821495
Click to expand...
Click to collapse
It is not possible as per some of the replies to that thread. I spent a few hours playing TWRP yesterday and it was not possible either.

DannySB1 said:
It is not possible as per some of the replies to that thread. I spent a few hours playing TWRP yesterday and it was not possible either.
Click to expand...
Click to collapse
Ok so listen, it can be done as i said but it's not easy. The choice you have of course before attempting this is to just install a android 7 custom ROM? many nougat ROMs are just stock with the bloatware removed and the boot-loader version isn't checked during flash.
Here's another way to go back, i can't guarantee it will work though i haven't tried it on an S7.
Downgrade to an older firmware with an older bootloader even if one keeps the newer bootloader on his device.
So what's how's it done?
Download the firmware file (.tar) which you want to downgrade to and open it with an archiver application (7zip). Extracts all the files to a folder and repacks them again in a .tar file but leaving every file out which ends in .bin (e.g. sboot.bin etc.). This .tar file can now be flashed like any other firmware file via Odin and it should run through it without any problems.
Hope this helps.

plz tell me how to downgrade i upgraded my phone to oreo now there's no network i need to downgrade back to marshmellow i also installed marshmellow but it stuck on samsung bootloop plz help me

Bipnbarsha said:
plz tell me how to downgrade i upgraded my phone to oreo now there's no network i need to downgrade back to marshmellow i also installed marshmellow but it stuck on samsung bootloop plz help me
Click to expand...
Click to collapse
What device? What firmware? What Rom?

S7 edge on oreo and stock rom my network was working fine on marshmellow but after oreo update my mobile network not working unfortunatly my binary has been updated before update i back up everything with twrp but now when i restore using twrp my phone stuck on samsung logo plz help mee

downgrand note 9 N9600 ZTO
i need to downgrand my note 9 i pay for the service of someone who can help me. i'm on the last firmawre bdo android 9 and i want to downgrand to the latest firmware of android 8.1. My note 9 is the N9600 ZTO.
email
[email protected]
whatsapp and telegram
+5582994311001

cooltt said:
Ok so listen, it can be done as i said but it's not easy. The choice you have of course before attempting this is to just install a android 7 custom ROM? many nougat ROMs are just stock with the bloatware removed and the boot-loader version isn't checked during flash.
Here's another way to go back, i can't guarantee it will work though i haven't tried it on an S7.
Downgrade to an older firmware with an older bootloader even if one keeps the newer bootloader on his device.
So what's how's it done?
Download the firmware file (.tar) which you want to downgrade to and open it with an archiver application (7zip). Extracts all the files to a folder and repacks them again in a .tar file but leaving every file out which ends in .bin (e.g. sboot.bin etc.). This .tar file can now be flashed like any other firmware file via Odin and it should run through it without any problems.
Hope this helps.
Click to expand...
Click to collapse
Hey man, can you please explain this better ? Im using a galaxy s7 edge, but my firmware doesnt have a TAR file. there are 4 .md5 files (AP,BL,CP,CSC) that are flashable through odin. I want to downgrade bootloader

laurentiudll said:
Hey man, can you please explain this better ? Im using a galaxy s7 edge, but my firmware doesnt have a TAR file. there are 4 .md5 files (AP,BL,CP,CSC) that are flashable through odin. I want to downgrade bootloader
Click to expand...
Click to collapse
Hello that method no longer works, you can't downgrade anymore

cooltt said:
Hello that method no longer works, you can't downgrade anymore
Click to expand...
Click to collapse
I can downgrade to 14.1 Lineage OS.
Edit: There is no way do downgrade the official firmware

OneUi Android Pie (9.0) (without Root , With Root, With Root + Xposed ) For A8 plus.

Backup First I am not responsible for anything. Backup your NVRAM NVDATA EFS to restore ur iemi .
I have Made a TWRP backup for Pie so everybody can move from Oreo to pie by Restoring Backup.
first install BL and CP of pie throw odin and then restore backup uncheck efs while restoring.
Pie (9.0) with root:
https://mega.nz/#!8BJ30IBS!Ho6iy07O3NZLyKI-A1-yWWI3qqBLH4Cix92s6fyAw_Y
Pie (9.0) with root+xposed:
https://mega.nz/#!cBYnwYDL!Sc2QuTOLi257erZfKtX3aBZltSAtqfXxxvG06EFlxr8
CP and BL for Pie and Odin:
https://mega.nz/#!FEZhmATR!xb1LLR5npE4EwpZCBZhpP0jrBy0fgctKKIJsgtMHG9k

ajnajao1 said:
Removed
Click to expand...
Click to collapse
Why did you remove this?

Where link without root?

freemod said:
Where link without root?
Click to expand...
Click to collapse
Use file with Root and use magisk uninstaller to remove root.

ajnajao1 said:
Backup First I am not responsible for anything. Backup your NVRAM NVDATA .
I have Made a TWRP backup for Pie so everybody can move from Oreo to pie by Restoring Backup.
first install BL and CP throw odin and then restore backup
Pie (9.0) with root:
https://mega.nz/#!8BJ30IBS!Ho6iy07O3NZLyKI-A1-yWWI3qqBLH4Cix92s6fyAw_Y
Pie (9.0) with root+xposed:
https://mega.nz/#!cBYnwYDL!Sc2QuTOLi257erZfKtX3aBZltSAtqfXxxvG06EFlxr8
CP and BL for Pie and Odin:
https://mega.nz/#!FEZhmATR!xb1LLR5npE4EwpZCBZhpP0jrBy0fgctKKIJsgtMHG9k
Click to expand...
Click to collapse
How did you root pie?

I have decided to share screenshots
I'm a us user as you can see I have volte working and I got Dolby working .
Make sure you have the latest Oreo bootloader installed this so can down grade to Oreo if I want to.
Do not flash pie modems if you do you will have to flash pie bootloader.
If you have a bootloader example
Xxu3 you need flash ap system and bootloader xxs4.
This not for flashing this build but for flashing pie on Odin

Restore.
Restoring with selected EFS damaged original IMEI.... Without is it ok. Thanks!

when I went to install the stock gave error of dm-verify
Help me!!

RuizLenatoh said:
when I went to install the stock gave error of dm-verify
Help me!!
Click to expand...
Click to collapse
Specify your question. what are you asking>?

ajnajao1 said:
Specify your question. what are you asking>?
Click to expand...
Click to collapse
Do you have a telegram? so I can talk to you better

mchlbenner said:
I have decided to share screenshots
I'm a us user as you can see I have volte working and I got Dolby working .
Make sure you have the latest Oreo bootloader installed this so can down grade to Oreo if I want to.
Do not flash pie modems if you do you will have to flash pie bootloader.
If you have a bootloader example
Xxu3 you need flash ap system and bootloader xxs4.
This not for flashing this build but for flashing pie on Odin
Click to expand...
Click to collapse
How do I flash and does this work for my country?

Bad.Server said:
How do I flash and does this work for my country?
Click to expand...
Click to collapse
Depends on which country.
I'm using Canada csc it works on USA and Canada.

ت

mchlbenner said:
Depends on which country.
I'm using Canada csc it works on USA and Canada.
Click to expand...
Click to collapse
I'm from the Philippines and I don't know how this would work.... should flash the Philippine csc from the 8.0 update er. Sorry I'm completely clueless on how this works, all I know is flashing them.

Bad.Server said:
I'm from the Philippines and I don't know how this would work.... should flash the Philippine csc from the 8.0 update er. Sorry I'm completely clueless on how this works, all I know is flashing them.
Click to expand...
Click to collapse
Depends on what you want to get out of your phone.
I'm rooted so I had to use this canda csc.
For ab+ their no USA build I want have volte.
This csc I flash is done through twrp.
If your stock no root ect and you get what the services you want then go a head and do it.
If you are rooted and want to keep root then I would not.

mchlbenner said:
Depends on what you want to get out of your phone.
I'm rooted so I had to use this canda csc.
For ab+ their no USA build I want have volte.
This csc I flash is done through twrp.
If your stock no root ect and you get what the services you want then go a head and do it.
If you are rooted and want to keep root then I would not.
Click to expand...
Click to collapse
How do flash it though? I extracted the .zip file but it doesnt have the files to be flashed through Odin. Also I think I should tell you that my phone or rather knoxs tells's me that my phone is rooted but I've already flashed the non-rooted stock rom years ago because I failed when I tried to root my phone before and I don't know how to fix my mistake and gain root. If its not too much to ask, I would like to ask for your help, I would greatly appreciate it.

Bad.Server said:
How do flash it though? I extracted the .zip file but it doesnt have the files to be flashed through Odin. Also I think I should tell you that my phone or rather knoxs tells's me that my phone is rooted but I've already flashed the non-rooted stock rom years ago because I failed when I tried to root my phone before and I don't know how to fix my mistake and gain root. If its not too much to ask, I would like to ask for your help, I would greatly appreciate it.
Click to expand...
Click to collapse
It is a twrp back so it has to be flash with twrp.

OTA and maintain root ( TWRP Magisk)

How can i install an OTA update and maintain root ?
I have rooted using TWRP 3.5 and Magisk 22
I've found several instructions using the “TWRP A/B Retention Script”
but since the Samsung A8 (2018) has an A-Only (or non A/B) partition scheme
i am left in the dark ...

ReMiOS said:
How can i install an OTA update and maintain root ?
I have rooted using TWRP 3.5 and Magisk 22
I've found several instructions using the “TWRP A/B Retention Script”
but since the Samsung A8 (2018) has an A-Only (or non A/B) partition scheme
i am left in the dark ...
Click to expand...
Click to collapse
Why not download and flash firmware updates manually?
For me, official OTA updates are often too late. I want to install an update as soon as I can get my hands on it.

It_ler said:
Why not download and flash firmware updates manually?
For me, official OTA updates are often too late. I want to install an update as soon as I can get my hands on it.
Click to expand...
Click to collapse
Seems like a good idea, but how can i install a OTA manually ?

ReMiOS said:
Seems like a good idea, but how can i install a OTA manually ?
Click to expand...
Click to collapse
I use Frija (https://forum.xda-developers.com/t/tool-frija-samsung-firmware-downloader-checker.3910594/) to check for and download latest stock Samsung firmware files. Then I use Odin to flash it to my phone.

It_ler said:
I use Frija (https://forum.xda-developers.com/t/tool-frija-samsung-firmware-downloader-checker.3910594/) to check for and download latest stock Samsung firmware files. Then I use Odin to flash it to my phone.
Click to expand...
Click to collapse
Thanks for your reply
When using Frija and Odin wil this wipe my data ?
Or will the phone-data be untouched and also the TWRP Root (Magisk) ?

ReMiOS said:
Thanks for your reply
When using Frija and Odin wil this wipe my data ?
Or will the phone-data be untouched and also the TWRP Root (Magisk) ?
Click to expand...
Click to collapse
Downloading with Frija does nothing on your device.
Flashing firmware files with Odin will overwrite the corresponding system partitions ... and when flashing another CSC file, you may have to wipe data partition to get the device rebooting into system again.
But as long as you do not flash another CSC file (I always use Home_CSC file to stay on my current CSC), data partition will not be overwritten or wiped.
Concerning root / Magisk IDK. If you have changed something in system partitions for rooting the device, this may be overwritten by flashing the stock Samsung firmware. In this case, you will have to do the needed changed again for rooting the device.
As I am not rooted with Magisk ATM, I am not familiar with the exact steps. I heard about "patching" a system file, but better to ask someone more familiar with rooting with Magisk.
BTW... after flashing stock firmware, will have stock recovery. No more TWRP. If you want/need it back, you will have to flash TWRP recovery again afterwards.

It_ler said:
Downloading with Frija does nothing on your device.
Flashing firmware files with Odin will overwrite the corresponding system partitions ... and when flashing another CSC file, you may have to wipe data partition to get the device rebooting into system again.
But as long as you do not flash another CSC file (I always use Home_CSC file to stay on my current CSC), data partition will not be overwritten or wiped.
Concerning root / Magisk IDK. If you have changed something in system partitions for rooting the device, this may be overwritten by flashing the stock Samsung firmware. In this case, you will have to do the needed changed again for rooting the device.
As I am not rooted with Magisk ATM, I am not familiar with the exact steps. I heard about "patching" a system file, but better to ask someone more familiar with rooting with Magisk.
BTW... after flashing stock firmware, will have stock recovery. No more TWRP. If you want/need it back, you will have to flash TWRP recovery again afterwards.
Click to expand...
Click to collapse
GitHub - Magisk-Modules-Repo/twrp-keep: twrp-keep
twrp-keep. Contribute to Magisk-Modules-Repo/twrp-keep development by creating an account on GitHub.
github.com

It's called a TWRP retention script.

Question help: SM-a125U stuck in Hash of data does not match digest in descriptor

Previous android version: Android 11
Previous base-band version: A125USQU2BUG5
company: wireless cricket
In the context of flashing with the new firmware I used :
- Odin version: 3 v3.14
- Firmware used: Samfw.com_SM-A125U_USC_A125USQU2BUL1_fac_2

The error is related to the vbmeta check. Did you used a sock firmware or you have patched it with magisk? Btw i reccomend to use frija to download the firmware.
If i can suggest I would make this steps:
1) download latest firmware with frija
2) Flash the stock and see if it work
Otherwise if this not help:
1) download latest firmware with frija
2) patch the whole ap and not only boot.img with magisk
3) open odin and flash it using the patched ap on the ap slot
If nothing above works, I think you can try this... not sure it will work. Replace inside the ap the vbmeta.img with the attached one that have the disabled verified boot.

Oneplus# said:
The error is related to the vbmeta check. Did you used a sock firmware or you have patched it with magisk? Btw i reccomend to use frija to download the firmware.
If i can suggest I would make this steps:
1) download latest firmware with frija
2) Flash the stock and see if it work
Otherwise if this not help:
1) download latest firmware with frija
2) patch the whole ap and not only boot.img with magisk
3) open odin and flash it using the patched ap on the ap slot
If nothing above works, I think you can try this... not sure it will work. Replace inside the ap the vbmeta.img with the attached one that have the disabled verified boot.
Click to expand...
Click to collapse
Thanks for the reply.ok
1- The firmware is stock.
2- I didn't patch any of the files I got ( any recommended guide on how to proceed>?)
3- I' so new at this
But anyways, yesterday I kind of sorted out the stuck by adding BL file, and CSC file along the AP file to ODIN, the phone restarted ok but found out it hasn't been unlocked from the carrier yet, so I guess that by judging what u just said, there are few thing I need a guide to
- Flashing the stock
- Patching the AP file
Ps Frija opens up when executed, but it closes in less than 1 second. (Pc 's OS: win 10 enterprise 64 bits)

leonardo07746 said:
Thanks for the reply.ok
1- The firmware is stock.
2- I didn't patch any of the files I got ( any recommended guide on how to proceed>?)
3- I' so new at this
But anyways, yesterday I kind of sorted out the stuck by adding BL file, and CSC file along the AP file to ODIN, the phone restarted ok but found out it hasn't been unlocked from the carrier yet, so I guess that by judging what u just said, there are few thing I need a guide to
- Flashing the stock
- Patching the AP file
Ps Frija opens up when executed, but it closes in less than 1 second. (Pc 's OS: win 10 enterprise 64 bits)
Click to expand...
Click to collapse
When you flash with Odin you always need to use all the files provided on the stock firmware ap, bl, csc and cp. If u are upgrading you can use the home_csc instead of the csc file that will let you keep your data.
Are you sure you have installed the framework that Frija need?
For the ap patching, is only meant if you want root your phone, flashing the whole ap instead of the boot.img only will let you fix the vbmeta checks too.
Install the magisk app.
Open it and tap Install, it will ask for a file to patch, chose the ap file of the stock firmware you downloaded.
Final step, flash ap patched and the others (bl,csc,cp).
When you say unlocked by the carrier what do you mean? You have any sort of sim block? Or you only want remove your carrier apps and configs?

Oneplus# said:
When you flash with Odin you always need to use all the files provided on the stock firmware ap, bl, csc and cp. If u are upgrading you can use the home_csc instead of the csc file that will let you keep your data.
Are you sure you have installed the framework that Frija need?
For the ap patching, is only meant if you want root your phone, flashing the whole ap instead of the boot.img only will let you fix the vbmeta checks too.
Install the magisk app.
Open it and tap Install, it will ask for a file to patch, chose the ap file of the stock firmware you downloaded.
Final step, flash ap patched and the others (bl,csc,cp).
When you say unlocked by the carrier what do you mean? You have any sort of sim block? Or you only want remove your carrier apps and configs?
Click to expand...
Click to collapse
thanks for all that
- it s sim block

Oneplus# said:
When you flash with Odin you always need to use all the files provided on the stock firmware ap, bl, csc and cp. If u are upgrading you can use the home_csc instead of the csc file that will let you keep your data.
Are you sure you have installed the framework that Frija need?
For the ap patching, is only meant if you want root your phone, flashing the whole ap instead of the boot.img only will let you fix the vbmeta checks too.
Install the magisk app.
Open it and tap Install, it will ask for a file to patch, chose the ap file of the stock firmware you downloaded.
Final step, flash ap patched and the others (bl,csc,cp).
When you say unlocked by the carrier what do you mean? You have any sort of sim block? Or you only want remove your carrier apps and configs?
Click to expand...
Click to collapse
Mannn thanks!
I rooted my tab 5Se a long time ago and deleted the firmware files except the AP.
I got stuck on the same screen today when I re-locked my bootloader after a stock AP-only flash
Then I saw your reply here and got the rest of the files flashed and it worked and booted
And for those who are reading if you don't have a SIM on your tablet you don't need a CP that's why you won't find it in your firmware zip file
Cheerios

[Samsung] downgrade to android 9 Although different binary

Hello everyone
Is there any solution to downgrade my a750fn under android 10 and bootloader u5 to android 9
Found a problem in Android 10
I need Android 9 U5
Please help me . I searched a lot, I did not find
I'm starting to lose hope
Is there a solution or should I stop searching?

Alihero123 said:
Hello everyone
Is there any solution to downgrade my a750fn under android 10 and bootloader u5 to android 9
Found a problem in Android 10
I need Android 9 U5
Please help me . I searched a lot, I did not find
I'm starting to lose hope
Is there a solution or should I stop searching?
Click to expand...
Click to collapse
There probably isn't a binary 5 android 9. If you can unlock the boooader, you can use the modified version of Odin and flash Android 9 regardless of what binary it has.

Droidriven said:
There probably isn't a binary 5 android 9. If you can unlock the boooader, you can use the modified version of Odin and flash Android 9 regardless of what binary it has.
Click to expand...
Click to collapse
Yes, the bootloader is unlocked. But what do you mean by "modified version of odin"
Thanks for your reply

Alihero123 said:
Yes, the bootloader is unlocked. But what do you mean by "modified version of odin"
Thanks for your reply
Click to expand...
Click to collapse
There is this:
Patched Odin 3.13.1
For those looking for a modified, modded, or patched odin that is a newer build than all the fake and renamed prince comsy 3.12.3 versions floating around. I patch recent Odin versions to offer similar functionality to the princecomsy; in that...
forum.xda-developers.com
And there is the "Prince Comsy" version.

Droidriven said:
There is this:
Patched Odin 3.13.1
For those looking for a modified, modded, or patched odin that is a newer build than all the fake and renamed prince comsy 3.12.3 versions floating around. I patch recent Odin versions to offer similar functionality to the princecomsy; in that...
forum.xda-developers.com
And there is the "Prince Comsy" version.
Click to expand...
Click to collapse
Now just flash the software, despite the difference of binary

Alihero123 said:
Now just flash the software, despite the difference of binary
Click to expand...
Click to collapse
Try it, it can only work and you get what you want or it fails to flash and nothing happens. If it ifails and won't reboot, flash your Android 10 firmware and it should restore your device then you can try again. You may or may not need to/want to try extracting the Android 9 firmware files and the Android 10 firmware files then putting together your own modified Android 9 firmware using different parts of the Android 9 and the Android 10 firmware, mixing and matching the bootloader, kernel and system .img files until you get a combination that works.

Droidriven said:
Try it, it can only work and you get what you want or it fails to flash and nothing happens. If it ifails and won't reboot, flash your Android 10 firmware and it should restore your device then you can try again. You may or may not need to/want to try extracting the Android 9 firmware files and the Android 10 firmware files then putting together your own modified Android 9 firmware using different parts of the Android 9 and the Android 10 firmware, mixing and matching the bootloader, kernel and system .img files until you get a combination that works.
Click to expand...
Click to collapse
Thank you very much my friend