Database Info

g955f latest firmware but need to downgrade to 7.0

hi all
i got a samsung s8+ with G955FXXU2CRED_CL13569719 firmware on it.
How can i downgrade it to android 7.0?
If i flash 7.0 software i got failed when i flash BL
If i only flash AP the device shows encryption failed and then then i get boot loop with erasing android icon.
Hope some one has a solution here.

u can try downgrade to CRAP firmware (the 1st Oreo) and then try to downgrade to android 7.0 with all files.
I downgraded from 3 previous versiones of Oreo, didnt try agaik with the later ones but i read that the new boatloader in kinda tricky now.

galarond said:
u can try downgrade to CRAP firmware (the 1st Oreo) and then try to downgrade to android 7.0 with all files.
I downgraded from 3 previous versiones of Oreo, didnt try agaik with the later ones but i read that the new boatloader in kinda tricky now.
Click to expand...
Click to collapse
With crap i also get failed
When i flash Crap AP File only is get stuck in boot loop With installing update. And then reboot.

Got it with a new Combination file

pctronic said:
Got it with a new Combination file
Click to expand...
Click to collapse
Please do share...and did you manage to install TWRP recovery afterwards?

Moe5508 said:
Please do share...and did you manage to install TWRP recovery afterwards?
Click to expand...
Click to collapse
Didnt use TWRP here is link for combination
https://shell.boxwares.com/Download.aspx?L=6583

pctronic said:
hi all
i got a samsung s8+ with G955FXXU2CRED_CL13569719 firmware on it.
How can i downgrade it to android 7.0?
If i flash 7.0 software i got failed when i flash BL
If i only flash AP the device shows encryption failed and then then i get boot loop with erasing android icon.
Hope some one has a solution here.
Click to expand...
Click to collapse
pctronic said:
Got it with a new Combination file
Click to expand...
Click to collapse
pctronic said:
Didnt use TWRP here is link for combination
https://shell.boxwares.com/Download.aspx?L=6583
Click to expand...
Click to collapse
Stability?! Battery?! Lags?! Connectivity?! Source?!
Remove/change PDA reg?! Erase data?! (CSC issue)
Is this rom Nougat or prev Oreo version?!
Some info about this rom?! It comes from some forum's discussion?!

Odin flash works fine but then am on what seems to be bootloop...am stuck on screen with "FACTORY BINARY" message showing and big progress arrows now for 20 minutes...is that normal to take so long?

pctronic said:
Got it with a new Combination file
Click to expand...
Click to collapse
Will this work on s8 too?

hello
This can not be used combination for daily use is only for developers and fix the problem. Now working after this version combination . you can be loaded here
https://updato.com/firmware-archive-select-model?record=E60FECB3632411E89F15FA163EE8F90B
download and flash with odin without CP file and no your mobile go back to 7.0 .
thanks I hope that I have helped you.

nabel_sweed said:
hello
This can not be used combination for daily use is only for developers and fix the problem. Now working after this version combination . you can be loaded here
https://updato.com/firmware-archive-select-model?record=E60FECB3632411E89F15FA163EE8F90B
download and flash with odin without CP file and no your mobile go back to 7.0 .
thanks I hope that I have helped you.
Click to expand...
Click to collapse
Nah this fails on the latest U2CRED ROM with bootloader v2...

downgrade from Oreo to Nougat - success but can't to install custom rom

Hi all
Currently on Batman V2.0.0 Oreo - S8+ SM-G955F
Reason for change is due to poor battery life and intermittent fingerprint scanner.
I have downloaded stock Nougat 7.0 - G955FXXU1AQF7_G955FOXM1AQF7_BTU, flashed this via Odin and everything booted up fine. The next step was to root and device and install twrp.
1. Downloaded TWRP and installed
2. Installed dm-verity and force encryption disabler
3. flashed Magisk.zip
had full access to twrp and had root.
Now i am trying to flash batman V1.50 via twrp. The installation goes fine, when rebooted it stays on the Samsung screen. it will not let me load a OS. The system states no OS installed. i have tried with 2 other Nougat roms and still no joy, i even flashed the correct bootloader and modem and still hangs on logo. is there something i am missing here? all your help would be appreciated. Oreo update is not for me.
Restored a twrp backup to go back to my working version of batman oero again, stuck with this until a solution

just a update, managed to sort it out, all working with Nougat and it is stable

luv2vexx said:
just a update, managed to sort it out, all working with Nougat and it is stable
Click to expand...
Click to collapse
hello, can you share how you solve the problem? thanks

luv2vexx said:
just a update, managed to sort it out, all working with Nougat and it is stable
Click to expand...
Click to collapse
How ?

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

help in F41/M21s development ?

I know that the device is recent, but devices with very similar hardware like M31, A51 and M30s already have a lot of development, while the F41 does not start with twrp, thanks to vbmeta. the community of this device needs help and a little attention, I ask the developers to focus on this device, it will be of great help ^^

Is TWRP available for F41 ?

rixyy said:
Is TWRP available for F41 ?
Click to expand...
Click to collapse
I recently discovered that the stock rom of the m31 works on the F41, as the M31 has twrp, so the answer is yes

Not working
M31 TWRP file doesnt works

rixyy said:
Not working
M31 TWRP file doesnt works
Click to expand...
Click to collapse
to work you need to install the stock rom of the M31 and follow the step by step of the M31 to install the twrp

I have flashed M31 Stock rom on my F41 it worked but I was still unable to Flash TWRP "Only Official Released Binaries Are Allowed To Be Flashed(recovery)" this is error that popped up. This could be because of that I have flashed latest M31 firmware but whatever might be case I am unable to downgrade the firmware or even flash the original rom of F41 "SW REV. CHECK FAIL. DEVICE: 2, BINARY: 1" this error comes on my phone. Can you explain me what is this problem and why is it occuring. And how can I flash my original stock rom of F41 back.

rixyy said:
I have flashed M31 Stock rom on my F41 it worked but I was still unable to Flash TWRP "Only Official Released Binaries Are Allowed To Be Flashed(recovery)" this is error that popped up. This could be because of that I have flashed latest M31 firmware but whatever might be case I am unable to downgrade the firmware or even flash the original rom of F41 "SW REV. CHECK FAIL. DEVICE: 2, BINARY: 1" this error comes on my phone. Can you explain me what is this problem and why is it occuring. And how can I flash my original stock rom of F41 back.
Click to expand...
Click to collapse
This is due to the bootloader. Try extracting the firmware you are flashing and delete all files ending with ".bin"

Tab E said:
This is due to the bootloader. Try extracting the firmware you are flashing and delete all files ending with ".bin"
Click to expand...
Click to collapse
Doesn't works

Question How to root galaxy a12 sm-a127f?

I really need help with this, I never rooted any device before and I tried 2 different methods to root this phone but all I got were bootloops. Anyway God bless you all.

a127f dsn 100% working i use 6 7 month
[SOLVED] Samsung A12 / SM-A127F/DSN - Root problem
Hello, I have problem with patch my boot.img with Magisk manager. After patching I got error : "The phone is not running Samsung's official software". After flash again stock boot.img everything works. I use Odin to flash. I tried to install...
forum.xda-developers.com

what is number your binary ??
or give me original ap file when test it