Dead boot - Samsung Galaxy A51 Questions & Answers

Hello, please help. I have a big problem.
I just flashed custom ROM and the installation was successful. When I restarted the phone, it stopped at the "Samsung Galaxy" logo and did not complete and then restarted automatically in this case. I tried to enter twrp, but to no avail. I also tried Entering the download mode, but also it does not work
I hope that someone will help me, and is this how the phone was damaged, or is there hope to recover it?

Try holding power and volume down for over 20 seconds, after the phone reboot keep holding those keys and hope you get into download mode

Zakaria2328 said:
Try holding power and volume down for over 20 seconds, after the phone reboot keep holding those keys and hope you get into download mode
Click to expand...
Click to collapse
Thx bro, but it didn't work

mhmdhousni said:
Thx bro, but it didn't work
Click to expand...
Click to collapse
Does Odin recognise the phone?

mhmdhousni said:
Hello, please help. I have a big problem.
I just flashed custom ROM and the installation was successful. When I restarted the phone, it stopped at the "Samsung Galaxy" logo and did not complete and then restarted automatically in this case. I tried to enter twrp, but to no avail. I also tried Entering the download mode, but also it does not work
I hope that someone will help me, and is this how the phone was damaged, or is there hope to recover it?
Click to expand...
Click to collapse
completely switch off the phone. hold volume up and volume down together and connect usb cable.

Zakaria2328 said:
Does Odin recognise the phone?
Click to expand...
Click to collapse
Unfortunately not, I even tried to enter it into download mode by pressing the volume up and down buttons and then connecting the USB, and it did not work, so I think it may need a board

mvikrant97 said:
completely switch off the phone. hold volume up and volume down together and connect usb cable.
Click to expand...
Click to collapse
I tried this and it didn't work either

mhmdhousni said:
I tried this and it didn't work either
Click to expand...
Click to collapse
Can you disassemble the phone and remove the battery and reconnect it again and try to put it into download mode?

mvikrant97 said:
Can you disassemble the phone and remove the battery and reconnect it again and try to put it into download mode?
Click to expand...
Click to collapse
Honestly, no, I haven't tried jaw before But I waited until the battery ran out and tried again to insert the download, but it didn't work either,,, I have a question I first formatted and then installed the ROM, then it succeeded, but after the word “installation was successful” there were words in red “failed mount system root” Then I flashed the rest of the ROM files, then I thought it was over, so I restarted, but it stopped at the "samsung galay - secured by Knox" logo. It does not continue and then restarts itself in this case and does not stop until the battery runs out and stops then I tried to enter the recovery but to no avail and also the same thing with the download mode,, summarizing all this does the phone need a motherboard, or that the matter can be solved?

mhmdhousni said:
Honestly, no, I haven't tried jaw before But I waited until the battery ran out and tried again to insert the download, but it didn't work either,,, I have a question I first formatted and then installed the ROM, then it succeeded, but after the word “installation was successful” there were words in red “failed mount system root” Then I flashed the rest of the ROM files, then I thought it was over, so I restarted, but it stopped at the "samsung galay - secured by Knox" logo. It does not continue and then restarts itself in this case and does not stop until the battery runs out and stops then I tried to enter the recovery but to no avail and also the same thing with the download mode,, summarizing all this does the phone need a motherboard, or that the matter can be solved?
Click to expand...
Click to collapse
It can be solved. It doesn't need a motherboard.
Try Chimera tool. It can fix dead boot. You may need to short test point of your phone so that the software recognises your phone.

mvikrant97 said:
It can be solved. It doesn't need a motherboard.
Try Chimera tool. It can fix dead boot. You may need to short test point of your phone so that the software recognises your phone.
Click to expand...
Click to collapse
I really appreciate your help, but can you tell me how to use it? I will do this later because I am busy during this period

mhmdhousni said:
I really appreciate your help, but can you tell me how to use it? I will do this later because I am busy during this period
Click to expand...
Click to collapse
Yeah sure. Its pretty straight forward. You can find tutorials on YouTube.

mvikrant97 said:
Yeah sure. Its pretty straight forward. You can find tutorials on YouTube.
Click to expand...
Click to collapse
Well, I'll look into it, thank u sir <3

Related

[Q] Phone stuck in boot loop.. Plz Help!!

Phone is A3LSGH-T959V.. Will power on and start to boot into recovery mode, but will shut down and start that process over again.. What do I need to do to fix this phone??
tlrichardson said:
Phone is A3LSGH-T959V.. Will power on and start to boot into recovery mode, but will shut down and start that process over again.. What do I need to do to fix this phone??
Click to expand...
Click to collapse
Confirm the model of phone you have. If it is indeed a SGH T959V, use the guide in the second link of my signature.
It is confirmed that the phone is in fact the SGH-T959V.. I'm using a Windows 7 PC, and the phone won't stay powered on long enough for the system to load the drivers for it.. Any other suggestions or advice is greatly appreciated...
tlrichardson said:
It is confirmed that the phone is in fact the SGH-T959V.. I'm using a Windows 7 PC, and the phone won't stay powered on long enough for the system to load the drivers for it.. Any other suggestions or advice is greatly appreciated...
Click to expand...
Click to collapse
Could you provide more info on how the phone got stuck, were you trying to flash a new ROM. Lumins guide is excellent( it has gotten me out of multiple self induced boot loops) but after installing one click, windows will not show you, on the pull down, a samsung composite device. you will have to look through the different drives that are shown to determine which drive your phone is on.
If you can get into the recovery mode, have you simply tried reflasing
tlrichardson said:
It is confirmed that the phone is in fact the SGH-T959V.. I'm using a Windows 7 PC, and the phone won't stay powered on long enough for the system to load the drivers for it.. Any other suggestions or advice is greatly appreciated...
Click to expand...
Click to collapse
If when you say shut down you mean bootloop, you need to read the guide as it says to put the phone in download mode. If your battery is dead, I'm sure you can figure out what you need to do to charge your battery on your own.
tlrichardson said:
Phone is A3LSGH-T959V.. Will power on and start to boot into recovery mode, but will shut down and start that process over again.. What do I need to do to fix this phone??
Click to expand...
Click to collapse
First make sure the battery is charged as Lumin suggested. If the battery is charged then my bet would be that you have a stuck power button. Try this. Pull the battery and put it back in. If the phone powers on by itself then your power button is stuck.
hechoen said:
First make sure the battery is charged as Lumin suggested. If the battery is charged then my bet would be that you have a stuck power button. Try this. Pull the battery and put it back in. If the phone powers on by itself then your power button is stuck.
Click to expand...
Click to collapse
Put in a brand new battery.. Phone is powering on by itself, but the power button doesn't feel like it's stuck.. Not saying it isn't stuck IJS.. It goes into recovery mode for a split second and resets.. Drivers won't load because the phone won't stay on long enough.. UGH!!
Definitely stuck
TwitchyEye said:
Definitely stuck
Click to expand...
Click to collapse
Without a doubt. Take the phone apart and clean the power button.
hechoen said:
Without a doubt. Take the phone apart and clean the power button.
Click to expand...
Click to collapse
I did, and seems to be working fine.. EXCEPT when I try to charge it or plug it into the pc.. It goes back into the boot loop.. Thinking the charger port may be the culprit here..

[Q] Unplugged MOTOACTV during adb clockwork recovery. How screwed am I?

Title pretty much sums everything up. Was trying to mod it following the instructions here: http://forum.xda-developers.com/showthread.php?p=36348097 and unplugged the cable while in CWM like an idiot. Now the device will not shut down, nor will it be recognized by the computer. Battery pull is not possible with this thing either, unless I want to disassemble it while it's running. Pressing the power down button in CWM does nothing, and none of the other options work as well. Do I just have to wait a day for the battery to die, and will I be able to even use the watch then?
cheese007 said:
Title pretty much sums everything up. Was trying to mod it following the instructions here: http://forum.xda-developers.com/showthread.php?p=36348097 and unplugged the cable while in CWM like an idiot. Now the device will not shut down, nor will it be recognized by the computer. Battery pull is not possible with this thing either, unless I want to disassemble it while it's running. Pressing the power down button in CWM does nothing, and none of the other options work as well. Do I just have to wait a day for the battery to die, and will I be able to even use the watch then?
Click to expand...
Click to collapse
if u can get into download mode all is well but if u cant then i wont be able to help. If u can get into download mode i will help u through the rest.
Press thanks if ive helped you!
noahthedominator said:
if u can get into download mode all is well but if u cant then i wont be able to help. If u can get into download mode i will help u through the rest.
Press thanks if ive helped you!
Click to expand...
Click to collapse
Forgive my ignorance but how do I do that?
cheese007 said:
Forgive my ignorance but how do I do that?
Click to expand...
Click to collapse
No worries at all. Every phone is different. I would google it but I would try holding the power and volume up buttons. IF that doesn't work google motoactv download mode.
Press thanks if ive helped!
noahthedominator said:
No worries at all. Every phone is different. I would google it but I would try holding the power and volume up buttons. IF that doesn't work google motoactv download mode.
Press thanks if ive helped!
Click to expand...
Click to collapse
Suddenly it started working again and I was able to reboot. This was after pressing both power and vol up but no idea if that helped. Thank you so much!
cheese007 said:
Suddenly it started working again and I was able to reboot. This was after pressing both power and vol up but no idea if that helped. Thank you so much!
Click to expand...
Click to collapse
So it booted up???
Press thanks if I helped!!!
noahthedominator said:
So it booted up???
Press thanks if I helped!!!
Click to expand...
Click to collapse
Indeed it did. Having a new issue though. Stuck in a bootloop when I tried the first instructions from this thread: http://forum.xda-developers.com/showthread.php?p=28179638 and can't seem to get out. Above command doesn't work.
EDIT: Fixed by waiting for the battery to drain, allowing me to boot into recovery, and used the adb commands to do the mod.
cheese007 said:
Indeed it did. Having a new issue though. Stuck in a bootloop when I tried the first instructions from this thread: http://forum.xda-developers.com/showthread.php?p=28179638 and can't seem to get out. Above command doesn't work.
EDIT: Fixed by waiting for the battery to drain, allowing me to boot into recovery, and used the adb commands to do the mod.
Click to expand...
Click to collapse
I was just about to say get into download mode or recovery and sounds like u did. Glad i could help.

Xperia Z5 not booting up/red blinking light after update = Bricked?

Hi gang,
My Xperia Z5 (E6603) would not boot up after the latest update. I'm guessing it must've died during the update.
I tried:
Reset (Pwr + Vol+/-) and OFF button in sim card tray. All reset attempt was done several times with and without the simcard tray.
I noticed the phone did not vibrate when I tried Pwr + vol+ or with the OFF button by itself. It only vibrate when the OFF and Pwr button were held down simultaneously.
To rule out it was battery, I let it charged for almost 2 days now without any success. I still get the slow blinking red light and no solid red or orange or green light indicating the device is fully charged. I also check the integrity of the battery at the stored and it is at 4.0 V, so I believe the battery is not the problem.
Unplugging battery method: Tried unplugging the battery and connect to the computer then plugged it back in with no luck.
Flashtool was not recognized after holding Vol- and connect to the computer.
I also tried different charger and usb
i read from many forum that the battery needs to die in order to reset the kernel. Should I just let the battery discharged? Or are there others ways that are more efficient?
I'm not sure what to do at this point. Any suggestion will be greatly appreciated.
Thank you!
try change battery
Alvian_P said:
try change battery
Click to expand...
Click to collapse
I believe the battery is ok. I brought it to the store to check the charge and it was sufficient
thank you,
Flash phone using Flashtool.
El Solido said:
Flash phone using Flashtool.
Click to expand...
Click to collapse
Unfortunately, the phone is not recognized by flashtool.
Thank you,
maybe bootloader corrupt. bootloader in emmc. try bring your phone to phone services, JTAG flash may help.
Alvian_P said:
maybe bootloader corrupt. bootloader in emmc. try bring your phone to phone services, JTAG flash may help.
Click to expand...
Click to collapse
What software can I use to fix the bootloader? I have an unlocked phone so my service provider will not take care of it.
Thank you!
myphonedied said:
What software can I use to fix the bootloader? I have an unlocked phone so my service provider will not take care of it.
Thank you!
Click to expand...
Click to collapse
Go to phone repair outlets in your city, not in Sony Service Center. usually they can fix hardware problem. I dont know what software are used. I only know with Jtag can repair bootloader via test point.
Alvian_P said:
Go to phone repair outlets in your city, not in Sony Service Center. usually they can fix hardware problem. I dont know what software are used. I only know with Jtag can repair bootloader via test point.
Click to expand...
Click to collapse
Does the bootloader need to be unlocked on the phone previously for the JTAG method to work?
Thank you for the suggestion,
myphonedied said:
Does the bootloader need to be unlocked on the phone previously for the JTAG method to work?
Thank you for the suggestion,
Click to expand...
Click to collapse
not sure. locked or unlocked should work, because the files inject directly to emmc
by the way, have you try to change another battery?
ave you tried to boot the phone into download mode?
Have you tried the actual Sony Tool and the Recovery-Process?
With that i unbricked my Z5 from that symptons i think 2 or 3 times already after the flash went somehow wrong because it stopped midway.
Alvian_P said:
not sure. locked or unlocked should work, because the files inject directly to emmc
by the way, have you try to change another battery?
Click to expand...
Click to collapse
I ordered a new battery, will try that and let you know
Thanks!
Seelbreaker said:
ave you tried to boot the phone into download mode?
Have you tried the actual Sony Tool and the Recovery-Process?
With that i unbricked my Z5 from that symptons i think 2 or 3 times already after the flash went somehow wrong because it stopped midway.
Click to expand...
Click to collapse
The phone won't boot into download mode. It's not recognized by PC companion so I can't carry out the recovery process.
Thank you for the suggestion!
myphonedied said:
I ordered a new battery, will try that and let you know
Thanks!
Click to expand...
Click to collapse
Ok... :good:
myphonedied said:
The phone won't boot into download mode. It's not recognized by PC companion so I can't carry out the recovery process.
Thank you for the suggestion!
Click to expand...
Click to collapse
Another thing - on my Laptop i can't access fastboot mode because it restarts everytime (showing the blue led and then it reboots), therefore i have to attach the Z5 to the Dockingstation.
But it seems like it is completeley dead right?
just to be sure - press and hold vol up and then connect your usb-cable. If the LED stays blue - gg
Then you just have to install the fastboot driver in Test-Mode (reboot to f8 and deactivate the Enforced Driver Signature) and then you may be able to atleast flash or better first boot the phone with a new kernel. If the boot works and then crashes you have your first step to unbrick the phone.
fastboot boot "kernel-image"
Altough i don't have any idea which Kernel you should choose
Seelbreaker said:
Another thing - on my Laptop i can't access fastboot mode because it restarts everytime (showing the blue led and then it reboots), therefore i have to attach the Z5 to the Dockingstation.
But it seems like it is completeley dead right?
just to be sure - press and hold vol up and then connect your usb-cable. If the LED stays blue - gg
Then you just have to install the fastboot driver in Test-Mode (reboot to f8 and deactivate the Enforced Driver Signature) and then you may be able to atleast flash or better first boot the phone with a new kernel. If the boot works and then crashes you have your first step to unbrick the phone.
fastboot boot "kernel-image"
Altough i don't have any idea which Kernel you should choose
Click to expand...
Click to collapse
Red blinking red in Sony phones mean bricked motherboard
Try on different computer. Use USB 2.0 port and original sony cable.
EugenStanis said:
Red blinking red in Sony phones mean bricked motherboard
Click to expand...
Click to collapse
Any way to fix a bricked motherboard?
myphonedied said:
Any way to fix a bricked motherboard?
Click to expand...
Click to collapse
Yes, replacing it
Use setool2 box for unbreak your phone

Samsung Galaxy Tab S6, cannot boot up after firmware update using Odin

Hi,
Really need your help, after I updated my firmware using Odin, updated BL, AP, CP, CSC, my tab cannot boot up stuck in logo. Doing the Power + volume up leads me to different screen now.
What must I do? Pleasssee help. Added the pic, after doing hard reset (power + vol up)
I cannot connect back to Odin also. Always setup connection failed.
Please help. I really messed up big time :'(
Thank you all in advance.
Well let the battery drain then boot up works or not?
LR7875 said:
Well let the battery drain then boot up works or not?
Click to expand...
Click to collapse
I haven't tried it yet, waiting also for the battery to be drain, it always boot loop but until samsung logo only..
JayR0503 said:
I haven't tried it yet, waiting also for the battery to be drain, it always boot loop but until samsung logo only..
Click to expand...
Click to collapse
Hi, can this be repaired by service center?
If warranty still here, they should repair for you, although most likely they will go ahead and replace the motherboard.
LR7875 said:
If warranty still here, they should repair for you, although most likely they will go ahead and replace the motherboard.
Click to expand...
Click to collapse
Oh my bad.. it is not under warranty anymore, this will cost me a lot right? Is there any chance of connecting back to download mode? I cannot access it anymore, it will show connect to PC only but Odin cannot setup connection though it is added successfully.
Thanks.
have you download the updated odin?
Try with latest Odin, patched Odin, or even running Heimdall(google 'Heimdall samsung') in an Linux virtualbox.
There is a procedure involving complete shut down, then holding certain buttons and somehow (with your fifth hand) connecting cable between device and PC. Probably with Odin already running on PC.
I'm sorry, I don't remember where I saw it described. I think I used it on my SM-T290, so start by checking the T290 and T295 threads.
ykkfive said:
have you download the updated odin?
Click to expand...
Click to collapse
Hi, thanks I haven't downloaded the latest version but I use the 3.14.4.. version. I will try to find the latest one. Thanks.
J.Michael said:
There is a procedure involving complete shut down, then holding certain buttons and somehow (with your fifth hand) connecting cable between device and PC. Probably with Odin already running on PC.
I'm sorry, I don't remember where I saw it described. I think I used it on my SM-T290, so start by checking the T290 and T295 threads.
Click to expand...
Click to collapse
HI, thanks for the reply, actually the tab has been added and recognized in odin, but while Odin will try to setup connection if always fail. and bootloader screen is not showing anymore only this new recovery screen which is totally different from the original and from those I have seen in the forum. attached image is the new recovery screen when I press Power + vol. up button.
JayR0503 said:
HI, thanks for the reply, actually the tab has been added and recognized in odin, but while Odin will try to setup connection if always fail. and bootloader screen is not showing anymore only this new recovery screen which is totally different from the original and from those I have seen in the forum. attached image is the new recovery screen when I press Power + vol. up button.
Click to expand...
Click to collapse
I don't know what the options on your new recovery screen are. (Do you know what "RDX" is?) I can't read the first stack of options.
The tricky procedure I am trying to remember had to do with triggering download mode, and getting Odin to connect. Try to find a more reliable description of the procedure, it will probably include an explanation of what problem it is trying to solve.
JayR0503 said:
HI, thanks for the reply, actually the tab has been added and recognized in odin, but while Odin will try to setup connection if always fail. and bootloader screen is not showing anymore only this new recovery screen which is totally different from the original and from those I have seen in the forum. attached image is the new recovery screen when I press Power + vol. up button.
Click to expand...
Click to collapse
Well not long before I saw someone enter this ss rdx mode. Maybe it is some sort of crashdump mode or something. Let the battery drain down and try to boot up again.
J.Michael said:
I don't know what the options on your new recovery screen are. (Do you know what "RDX" is?) I can't read the first stack of options.
The tricky procedure I am trying to remember had to do with triggering download mode, and getting Odin to connect. Try to find a more reliable description of the procedure, it will probably include an explanation of what problem it is trying to solve.
Click to expand...
Click to collapse
Hi i don't really have idea about RDX sorry but im searching about it also.. there are only 4 options for me to choice from the new menu, To PC connect or US, Connect to SD Card, RDX AGAIN and RDX Exit that's all.
LR7875 said:
Well not long before I saw someone enter this ss rdx mode. Maybe it is some sort of crashdump mode or something. Let the battery drain down and try to boot up again.
Click to expand...
Click to collapse
I'm trying to find some info on RDX also but I did tried to drain the battery but when it bootup same situation exit...
JayR0503 said:
Hi i don't really have idea about RDX sorry but im searching about it also.. there are only 4 options for me to choice from the new menu, To PC connect or US, Connect to SD Card, RDX AGAIN and RDX Exit that's all.
Click to expand...
Click to collapse
Have you tried:
tablet shut down, no cable
run Odin on PC
boot tablet
connect cable between tablet and PC
I'm hoping that option
Code:
[To PC] Connect a USB Cable
means "If you want to connect to a PC, now is the time to connect a USB cable."
Upload Mode means RDX Tool...
Upload Mode
There are several modes that Wave bootloader supports for certain purposes. The normal mode and low power mode just start the Nucleus kernel. I'm also pretty sure everybody knows what a DOWNLOAD MODE is (one with the red letters, but if initiated...
forum.xda-developers.com
Check this Thread...
Best Regards

continuous reset a51

How can I solve the error since it does not let me enter twrp...
toxicmixe said:
How can I solve the error since it does not let me enter twrp...
Click to expand...
Click to collapse
Can you please be more specific?
Continuous reset ot restart?
Try entering TWRP while connecting to PC with USB cable.
luckydaysbegin said:
Can you please be more specific?
Continuous reset ot restart?
Try entering TWRP while connecting to PC with USB cable.
Click to expand...
Click to collapse
Continuous restart does not stop
Hello, it seems like your recovery and os are broken. I also met this problem, when I tried to install a custom ROM by an incorrect way.
So, the only thing you can do is to enter the downloading (Odin) by first, forcibly restarting phone with pressing volume down and power buttons and then quickly switching to volume up and down buttons with connecting the phone to PC
Then you will need to flash a correct stock rom with the binary you had. That is all, i think
vmirrimv said:
Hello, it seems like your recovery and os are broken. I also met this problem, when I tried to install a custom ROM by an incorrect way.
So, the only thing you can do is to enter the downloading (Odin) by first, forcibly restarting phone with pressing volume down and power buttons and then quickly switching to volume up and down buttons with connecting the phone to PC
Then you will need to flash a correct stock rom with the binary you had. That is all, i think
Click to expand...
Click to collapse
I will try But what if it doesn't start download mode?
Can you tell me about it a bit more?
What steps did you do to enter the downloading mode?
vmirrimv said:
What steps did you do to enter the downloading mode?
Click to expand...
Click to collapse
Well first the phone if or if it has to be connected to a pc running odin right?
lets start. is your phone constantly rebooting right now?
vmirrimv said:
lets start. is your phone constantly rebooting right now?
Click to expand...
Click to collapse
There is a small problem.
The cell phone turned off completely
can your phone react on connecting the charging module?
vmirrimv said:
can your phone react on connecting the charging module?
Click to expand...
Click to collapse
React and put the loop back on
vmirrimv said:
can your phone react on connecting the charging module?
Click to expand...
Click to collapse
I'll tell you why this happened...
Try to install Elementary OS which is posted on this page.
And when trying to install I get errors and throw the loop ......
SO, in this situation everything can be good!
Are you on Windows?
Leave a feedback to let me understand if you here
...
so, if it is, do you have an archive with your stock ROM files?
vmirrimv said:
so, if it is, do you have an archive with your stock ROM files?
Click to expand...
Click to collapse
The phone does not
The computer does have the stock rom: 'v
so, then download the following files
Frija, the programm for fast downloading ROMs
vmirrimv said:
so, then download the following files
Click to expand...
Click to collapse
Okey

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