S8+ G955FD Exynos - Sprint Samsung Galaxy S8+ Questions & Answers

hi
i have update S8 plus to last firmware Android9
so i try to downgrade back to android8 by using odin
i got problem about downgrade failed becasue bootloader device12 BInay 13
my basebad =G955FXXUVCDUD1
so does my bootloader is "C"
so where can i find OREO stock firmware with C
i read from previous post. it is problem about bootloader of my firmware is newer than fimrware of android9.
samsung try to not allow us downgrade.
the problem is my S8+ with android9 is horrible slow and freeze lag so often. how can i possible to downgrade into android8
thank so much

Related

How to downgrade from Android 6.0.1 to 5.1.1

Hello
I flashed the latest firmware available for my S6 edge (SM-G925F) : G925FXXU3DPDP (XEF).
I've never used Android 5.1.1 on my phone and I asks to you if downgrade is possible at this point (latest BL I think) and if yes, how ?
Thanks you for your further replies
Bye.
I Think Once u Flashed The latest Firmware U can't Go back
Because Of bootloader
Bt U can try Download Android LP And boot loader And put Ur phone in Download Mode Flash with odin
i updated on 6.02...
didn´t like it...
flashed back to 5.1.1 stock without problems (odin)
Hello poci,
You were running with which firmware ?
It's easy to go back to lollipop?
I'm reading some comments off people wich say No, ando some less who say Yes.
i made an OTA update from 5.1.1 to 6.0.2... but i didn´t like the battery drain on 6.0.2......(or 6.0.1 i don´t know anymore)
after clean install of 6.0.2....there was no change at all...
then i went back to 5.1.1 by flashing a stock 5.1.1. firmware with odin...no trouble or anything else...
If flash fails, is my device will be hardbricked ???
if you have the right firmware...i would say "no"
so why should it fail?
i used this firmware for my o2 edge
G925FXXU3QOLD_G925FTEF3QOL1_G925FXXU3QOJB_HOME.tar
Beceause newest bootloaders blocks downgrade, you was in which firmware on Marshmallow ?
don´t know exactly...60.1 then
when 6.0.2 blocks downgrade...

How to go back from EMUI 8.0 rooted to 5.1 stock?

Hi everyone! I have rooted and unlocked my H9 STF-L09, i find it ok i guess, but i really miss the EMUI 5.1 days... I just think that was better.
So i'm asking you, is there a way to go fully back to stock Nougat, maybe with locked bootloader?
Thank you for your attention.
If you are rooted, your bootloader's actually unlocked.
So, because you're on oreo, you could use HuRUpdater to downgrade to a nougat firmware.
I'll test C432B184 rollback packages, if C432 is your actual region, as this version is the latest nougat build released for honor9 :
Code:
C432B184 rollback packages:
http://update.hicloud.com:8180/TDS/data/files/p3/s15/G1906/g1642/v133341/f1/full/update.zip
http://update.hicloud.com:8180/TDS/data/files/p3/s15/G1906/g1642/v133341/f1/full/STF-L09_hw_eu/update_full_STF-L09_hw_eu.zip
@FlorianSSJ ?

Galaxy S9+ downgrade

How do I downgrade the SM-G965U1 to an earlier firmware to get the One UI Beta on my phone? My phone is on G965U1UES3ARJ6. I need to get it to an earlier firmware, but I do not know which one.
https://forum.xda-developers.com/galaxy-s9-plus/how-to/official-pie-beta-ota-files-factory-t3868977

help me unbrick Galaxy AMP 2 JA120AZ

I removed frp and after restarting I got to recovery screen with a message stating "DM-VERITY verification Failed: , googling around I figured I needed to reflash the rom (ODIN), thing is I already tried many times and i always get a FAIL while flashing the SYSTEM part, I've tried downloading from different sources, so maybe I am downloading the wrong firmware, is this possible if boot and rec are flashing fine?, so i went to search and I always ended p with same firmware version.
then I found some others:
USA (Anritsu) AIO Official Frimware SM-J120AZ J120AZTUS5ARA1 Android 6.0.1 Marshmallow 05-Feb-18 Download
USA (Anritsu) AIO Official Frimware SM-J120AZ J120AZTUU3AQH2 Android 6.0.1 Marshmallow 10-Sep-17 Download
USA (Anritsu) AIO Official Frimware SM-J120AZ J120AZTUS3AQE1 Android 6.0.1 Marshmallow 13-Jun-17 Download
USA (Anritsu) AIO Official Frimware SM-J120AZ J120AZTUS2AQB2 Android 6.0.1 Marshmallow 15-Mar-17 Download
USA (Anritsu) AIO Official Frimware SM-J120AZ J120AZTUU2APJ2 Android 6.0.1 Marshmallow 10-Nov-16 Download
USA (Anritsu) AIO Official Frimware SM-J120AZ J120AZTUU1APD2 Android 6.0.1 Marshmallow 29-May-16
Which one should i get, or HOW Can i Know which one i Need?
it is a cricket device but seems like all of those are cricket
model under battery says SM-j120AZ-UD
i know it had android 6.01 but then again all of those files are 6.01
under the sticker there has some numbers:
170224 which must be a date, and REV 03 to the right of the barcode.
made in vietnam if that helps at all.
Please Help.
nevermind, I got it , thank you, had wrong firmware

Downgrading firmware

I have a galaxy tab A sm-t380 and I'm trying to downgrade the firmware from 7.1.1 to 6.0. I looked online and the only firmware I could find was the latest firmware or the second to oldest firmware. Does anyone here know where I can get older firmware for this particular tablet? Any help is much appreciated.
nestor makhno said:
I have a galaxy tab A sm-t380 and I'm trying to downgrade the firmware from 7.1.1 to 6.0. I looked online and the only firmware I could find was the latest firmware or the second to oldest firmware. Does anyone here know where I can get older firmware for this particular tablet? Any help is much appreciated.
Click to expand...
Click to collapse
The tablet came out in 2017 so this tablet is too new for offcail 6.0 and this device has no custom roms so I can't help you.

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