Unbrick A51 - Stuck on samsung logo - Samsung Galaxy A51 Questions & Answers

Hi,
My phone is stuck on A51 logo for days now
it charges - I can enter download mode easily - I can sometimes enter recovery mode some other times it doesn't let me
I tried flashing different stock ROMs of android 10, 11 for the phone with different security patches. it ends with success but the phone is still stuck
tried wiping data / wiping cache no luck
I can't boot the phone to OEM or FRP unlock it but i know my gmail address and can unlock it if there was a way to input it
so how can i solve this
(my phone details)
it was on the latest update for june's security patch - Egypt
model number A515F

Same here, but how can you enter in download mode? I want to try to flash original rom aswell.

Has anyone found any information on this yet??

DavidDroppdaBomb said:
Has anyone found any information on this yet??
Click to expand...
Click to collapse
What is your problem exactly? If you are experiencing bootloop even after installing stock via Odin then it's possible your motherboard is dead.

ShaDisNX255 said:
What is your problem exactly? If you are experiencing bootloop even after installing stock via Odin then it's possible your motherboard is dead.
Click to expand...
Click to collapse
I had a Galaxy a51 5G with cricket, and I am unable to get it to communicate with the Odin tool and I also keep running into an error saying a driver prevented this device from loading

Yes my motherboard was dead. However it has a problem which you can just heat the cpu and retry booting .. it will actually work for months but then die again

Related

No OS installed, don't know what region of firmware to download

So I tried to root my Samsung Galaxy S6 today using TWRP and it got stuck in a boot loop. I went to wipe to cache and accidentally wiped to system. So now there is no OS installed. I know I need to somehow put an OS on the device but I'm in Canada and when I go to samsung's site to download the firmware, there is no Canada option. I bought the phone off of amazon and it came with a European wall charger because it was imported, but how do I know what firmware to download?
Also, when I have found the right firmware, how do I flash it onto the device? I can no longer access TWRP, all I can get is the downloading screen thing. Can I use Odin/how do I use Odin?
Somebody help me I'm panicking because I broke my brand new phone!
You should check the Amazon listing to see which model number you have. It's probably SM-920F.
Once you have the correct firmware downloaded, Google a guide to flashing Galaxy S6 firmware with Odin. There are a lot of them out there.
krisztiana said:
So I tried to root my Samsung Galaxy S6 today using TWRP and it got stuck in a boot loop. I went to wipe to cache and accidentally wiped to system. So now there is no OS installed. I know I need to somehow put an OS on the device but I'm in Canada and when I go to samsung's site to download the firmware, there is no Canada option. I bought the phone off of amazon and it came with a European wall charger because it was imported, but how do I know what firmware to download?
Also, when I have found the right firmware, how do I flash it onto the device? I can no longer access TWRP, all I can get is the downloading screen thing. Can I use Odin/how do I use Odin?
Somebody help me I'm panicking because I broke my brand new phone!
Click to expand...
Click to collapse
On the back of the phone it should say which model you have, for example G920F, G920W8, G920P etc.
Download the proper firmware from Sammobile, then follow the tutorial that the following thread has a link to.
http://forum.xda-developers.com/galaxy-s6-edge/general/sm-g925f-s6-firmware-thread-t3078841
If the variant you have is the European model, G920F, I recomend you install the unbranded firmware.
IMPORTANT! MAKE SURE YOU HAVE THE PROPER FIRMWARE! INSTALLING THE WRONG FIRMWARE CAN HARD BRICK YOUR DEVICE!
I really hope this advice helped!
Really important is only that you pick the right model to download. The region isn't that important. Go to sammobile and download your stock rom, but be sure to not pick a branded one, because they are full of junk.
Also, you must use ODIN in that Download-Mode. Open ODIN, plug your device into your pc and see, if ODIN shows up your device. If yes, select "PDA" or "AP" (depending on ODIN Version) and select your ROM that you have downloaded. Then click on start. Don't touch your phone, your cable or your computer for best results. Wait ODIN say "PASS" with a green background. If this occurs, your phone should restart and after 10 mins or so, it should boot Android.
I did the same this as the OP, now I am stuck on the main "Samsung Galaxy S6 Edge Powered by Android" screen. I can boot into TWPR and into download. I have tried flashing zip from external SD card with USB-OTG with no luck, I have tried flashing from Odin, multiple Odin versions tried, multiple usb cords tried, multiple computers tried.. all result with <ID:x/xxx> Can't open serial(COM) port."
No matter what I do, I can't seem to get anything to take, not stock firmware or otherwise. Any suggestions.. donations for anyone who can help me solve. lol $$
dwall87 said:
I did the same this as the OP, now I am stuck on the main "Samsung Galaxy S6 Edge Powered by Android" screen. I can boot into TWPR and into download. I have tried flashing zip from external SD card with USB-OTG with no luck, I have tried flashing from Odin, multiple Odin versions tried, multiple usb cords tried, multiple computers tried.. all result with <ID:x/xxx> Can't open serial(COM) port."
No matter what I do, I can't seem to get anything to take, not stock firmware or otherwise. Any suggestions.. donations for anyone who can help me solve. lol $$
Click to expand...
Click to collapse
i'm in the same situation , stuck in bootloop for the last 3 days ive tried everything on youtube and forums , with odin with smart swich with kies with twrp , nothing , same bootloop everytime. don'tknow what to do .....
get the model number of your phone and flash the latest firmware through Odin
Milian90 said:
i'm in the same situation , stuck in bootloop for the last 3 days ive tried everything on youtube and forums , with odin with smart swich with kies with twrp , nothing , same bootloop everytime. don'tknow what to do .....
Click to expand...
Click to collapse
In odin under options untick Auto Reboot.
Flash Rom
Phone wont reboot once rom has flashed successfully so you will need to do manual reboot.
Go into recovery mode and wipe data.
Reboot phone
that should help let us know if it works
wifi wont turn on
hi, i managed to install the firmware but now the wifi and bluetooth wont turn on, wifi toggle and bluetooth wont go on, it looks like is trying toget on but after 20 seconds justgo back to off. idont know what to do .........
I can't even get any firmware to load as odin continually stops within seconds of starting to flash phone, no matter what firmware I choose it's the same result failed flash?

Samsung Galaxy S6 Live Demo converting to G920F problem please help :'(

Hi....
It's about my Samsung Galaxy S6 live demo which i bought some 6 months ago. It was working fine as a G920F. I could make calls, use whatsapp everything.In short, it was a full featured galaxy s6. At that time time i was noob. I didn't know anything about rooting-flashing. I thought retailer has sold me just a rooted phone that's why my software is not updating. I went for custom upgrade, started with super user full unroot, nothing happened. I rebooted and at once device started boot loop and was stuck. I tried everything but nothing helped. I saw a forum
" https://forum.xda-developers.com/ga...er-thread-guides-firmwares-t3267738?nocache=1 "
It helped me in knowing it was a demo unit and guided to flash it to stock and then to g920 F but after doing everything whatever it said disabling retail mode updating software in stock demo firmware, I can't flash G920F rom. Whenever I flash via odin it passes but stucks on Samsung live demo screen and on opening recovery mode says "Dm-verity verification failed.. check drk first " and else there is nothing...I am stuck on logo screen :crying:
My s6 was on Android 5.0.2
Firmware was G920FXWU2B0G8
Please help! I am crying :'( I bought it expensive... :"( ... Please help....
ayazbugti21 said:
Hi....
It's about my Samsung Galaxy S6 live demo which i bought some 6 months ago. It was working fine as a G920F. I could make calls, use whatsapp everything.In short, it was a full featured galaxy s6. At that time time i was noob. I didn't know anything about rooting-flashing. I thought retailer has sold me just a rooted phone that's why my software is not updating. I went for custom upgrade, started with super user full unroot, nothing happened. I rebooted and at once device started boot loop and was stuck. I tried everything but nothing helped. I saw a forum
" https://forum.xda-developers.com/ga...er-thread-guides-firmwares-t3267738?nocache=1 "
It helped me in knowing it was a demo unit and guided to flash it to stock and then to g920 F but after doing everything whatever it said disabling retail mode updating software in stock demo firmware, I can't flash G920F rom. Whenever I flash via odin it passes but stucks on Samsung live demo screen and on opening recovery mode says "Dm-verity verification failed.. check drk first " and else there is nothing...I am stuck on logo screen :crying:
My s6 was on Android 5.0.2
Firmware was G920FXWU2B0G8
Please help! I am crying :'( I bought it expensive... :"( ... Please help....
Click to expand...
Click to collapse
DM verity verification failure happens when your bootloader detects that there have been modifications made to the device that it deems to be unsafe.
Your 2 options are:
1) find the correct original firmware to flash via Odin and hope it works.
Or
2) let Samsung repair or replace the device.
Sent from my SM-S903VL using Tapatalk
Droidriven said:
DM verity verification failure happens when your bootloader detects that there have been modifications made to the device that it deems to be unsafe.
Your 2 options are:
1) find the correct original firmware to flash via Odin and hope it works.
Or
2) let Samsung repair or replace the device.
Sent from my SM-S903VL using Tapatalk
Click to expand...
Click to collapse
What could be the correct original firmware for a demo version?
Also the boot screen even after flashing shows same galaxy logo witha live demo unt written on it...
Is there a way to bypass dm-verity verification? Somehow block the bootloader from detecting modification?
Please help... :"(
ayazbugti21 said:
What could be the correct original firmware for a demo version?
Also the boot screen even after flashing shows same galaxy logo witha live demo unt written on it...
Is there a way to bypass dm-verity verification? Somehow block the bootloader from detecting modification?
Please help... :"(
Click to expand...
Click to collapse
No, there's no way to trick the bootloader.
Try this thread
https://forum.xda-developers.com/galaxy-s6/general/g920x-master-thread-guides-firmwares-t3267738
Sent from my SM-S903VL using Tapatalk

Samsung SM-G930F

I bought a used samsung s7 Sm-G930F but after using the phone for some days i saw an update release so i decided to update it but after download the update it couldnt install it due to some error i dont know is talking of. So after some days to went off and it couldnt come on. So i decided to flash the firmware BTU on it through odin3 but after get PASS in odin3 it keeps gets stuck on SAMSUNG. I have also try factory reset wipe cache before even doing the firmware flash. Also i try downgrading to 7.0 and 6.0 but didnt work. Please help am guessing am missing something. I also notice something when even i boot the phone in recovery mode and plug to my system, my system recognise as SM-G930S, while at the back is written SM-G930F. Pls provide with any possible solution to this issue.
Used phones are often rebranded as other models to try increase resale value. If it says G930S in download mode then that's the phone you have. If you tried flashing G930F software you've probably soft bricked it.
You could try flashing again but using G930S software.
Beanvee7 said:
Used phones are often rebranded as other models to try increase resale value. If it says G930S in download mode then that's the phone you have. If you tried flashing G930F software you've probably soft bricked it.
You could try flashing again but using G930S software.
Click to expand...
Click to collapse
Thanks for quick respond. In download it says Sm-g930f.but if i plug it to a system in recovery mode it shows as Sm-g930s. So am really confuse. And 8 have flash it with Sm-g920f firmware several times it keeps getting stuck on samsung logo sometimes it even load up to where i start setup with googke account and alk that but getting stuck again and couldnt respond at all.

Can't repair software of Samsung galaxy s6 edge

Hello there, I am already more than 3 days trying to download stock firmware for my phone, every day another problem, on the beginning it was always fail while trying with Odin, then I was try another firmware it was downloaded but stucked on update 32%.i understand it can be wrong firmware, I tried other methods, I was add pit for Samsung galaxy s6 edge G925F. Downloaded but didn't help, I tried another firmware for other region it was downloaded, even no fail, but stucked on erasing. I tried recovery mode (volume up-home-power) cant access it. Today I try again, all the time stuck on Initialization.
Note I tried different Odin version.
USB on laptop there's two, 2.0 and 3.0(blue)
The time it was succeed without fail it was on the black USB 2.0
So now even completely can't start to download firmware.
Also I was try to download Twrp after it was nearly succeeded and stucked on erasing, hoping that I can access recovery mode to wipe everything, but Twrp stucked on logo.
After all that I can't do nothing.
I still can access downloading mode and phone stuck on logo if I put it on the charge.
I hope I was give right and enough informations to help me solve the issue.
I appreciate any help
Willy1993 said:
Hello there, I am already more than 3 days trying to download stock firmware for my phone, every day another problem, on the beginning it was always fail while trying with Odin, then I was try another firmware it was downloaded but stucked on update 32%.i understand it can be wrong firmware, I tried other methods, I was add pit for Samsung galaxy s6 edge G925F. Downloaded but didn't help, I tried another firmware for other region it was downloaded, even no fail, but stucked on erasing. I tried recovery mode (volume up-home-power) cant access it. Today I try again, all the time stuck on Initialization.
Note I tried different Odin version.
USB on laptop there's two, 2.0 and 3.0(blue)
The time it was succeed without fail it was on the black USB 2.0
So now even completely can't start to download firmware.
Also I was try to download Twrp after it was nearly succeeded and stucked on erasing, hoping that I can access recovery mode to wipe everything, but Twrp stucked on logo.
After all that I can't do nothing.
I still can access downloading mode and phone stuck on logo if I put it on the charge.
I hope I was give right and enough informations to help me solve the issue.
I appreciate any help
Click to expand...
Click to collapse
You should identify the exact device model.
Then check to download the stock Samsung firmware for this model.
You can read about it here:
[Stock Firmware] Official Stock Firmware for ALL Galaxy S6 Edge Variants [Latest]
Reserved
forum.xda-developers.com

A51 Stuck on Samsung A51 logo - Unbrick

Hi,
My phone is stuck on A51 logo for days now
it charges - I can enter download mode easily - I can sometimes enter recovery mode some other times it doesn't let me
I tried flashing different stock ROMs of android 10, 11 for the phone with different security patches. it ends with success but the phone is still stuck
tried wiping data / wiping cache no luck
I can't boot the phone to OEM or FRP unlock it but i know my gmail address and can unlock it if there was a way to input it
so how can i solve this
(my phone details)
it was on the latest update for june's security patch - Egypt
model number A515F

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