Database Develop

Phone Doesn't Boot

Two weeks ago my phone randomly started to think it was charging every now and again. I thought nothing of it until One day it wouldn't boot. It would get stuck at the Samsung n7000 logo screen. I was able to boot into CWM so I did that and I tried to do a back up just because, but then it failed at backing up /data. It said it was corrupted. I went ahead and flashed another ROM and it booted just fine after that, but the charging problem persisted so I just ignored that. My phone just decided to not boot again so I was wondering if there was anything that could be done to save my phone. Also, I've always used a safe kernel.
TL;DR Phone doesn't boot. Randomly thinks it's charging and when I use CWM it says /data is corrupt. Flashing a new ROM only fixes it temporarily.

I think it is a hardware problem take a look at this thread http://forum.xda-developers.com/showthread.php?t=2008657

Thanks for the reply. f it persists I was probably gonna result in doing that. I am mainly looking for a solution to my other problem though.My phone sometimes just wont turn on at all.
I just went to a stock rom with ODIN installed a new kernel and then a new ROM so I'll see how that goes for a while, but if it's anything like before it wont last very long.

July OTA Update Bricked my Phone -- AT&T refusing to replace. Help!

Completely untouched phone from AT&T. Have never rooted or modded this phone in any way.
The update that came out this month was sending my phone into random boot loops. Would have to take the battery out and after a few tries it would stay on for a while then at some point in the day randomly go back to the boot loop.
I backed everything up through Kies then went into the recovery menu and attempted a factory reset. This sent the phone into a permanent boot loop -- would never turn on or off. Sammy logo flashes and it would reboot. Only way to get it to stop is to take the battery out.
Attempted to go back to 4.4 through Odin since those where the only firmware files I was able to find. Updated failed. Now, when I turn it on and I just get "Firmware upgrade encountered an issue. Please select recovery mode in kies and try again."
Kies will not recognize phone. Cannot update firmare from internal storage because I can't even get into recovery menu -- it just goes right back to the same screen.
Called AT&T and the rep told me he would replace the phone through warranty even though I was past my warranty date. He told me this update has messed up a lot of phones and this is not the first he's of it. Then his manager gets on to approve the warranty replacement and she refuses to honor his promise -- tells me they won't do it, I'm SOL, and I can use my upgrade. Maddening!
Please help -- I need a working phone!

LiquidArrogance said:
Completely untouched phone from AT&T. Have never rooted or modded this phone in any way.
The update that came out this month was sending my phone into random boot loops. Would have to take the battery out and after a few tries it would stay on for a while then at some point in the day randomly go back to the boot loop.
I backed everything up through Kies then went into the recovery menu and attempted a factory reset. This sent the phone into a permanent boot loop -- would never turn on or off. Sammy logo flashes and it would reboot. Only way to get it to stop is to take the battery out.
Attempted to go back to 4.4 through Odin since those where the only firmware files I was able to find. Updated failed. Now, when I turn it on and I just get "Firmware upgrade encountered an issue. Please select recovery mode in kies and try again."
Kies will not recognize phone. Cannot update firmare from internal storage because I can't even get into recovery menu -- it just goes right back to the same screen.
Called AT&T and the rep told me he would replace the phone through warranty even though I was past my warranty date. He told me this update has messed up a lot of phones and this is not the first he's of it. Then his manager gets on to approve the warranty replacement and she refuses to honor his promise -- tells me they won't do it, I'm SOL, and I can use my upgrade. Maddening!
Please help -- I need a working phone!
Click to expand...
Click to collapse
Most attempts to downgrade only flash the kernel so here is the OF2 kernel which should get your phone to boot again. Flash with Odin:
G900A_OF2_Stock_Kernel
Once your phone boots place the G900A_OC4_tF2_OTA.zip onto your extsd card and flash as update from stock recovery. That should get you back to 100% factory stock. Do a factory reset after flashing and if it still does not work I suspect a hardware problem.

muniz_ri said:
Most attempts to downgrade only flash the kernel so here is the OF2 kernel which should get your phone to boot again. Flash with Odin:
G900A_OF2_Stock_Kernel
Once your phone boots place the G900A_OC4_tF2_OTA.zip onto your extsd card and flash as update from stock recovery. That should get you back to 100% factory stock. Do a factory reset after flashing and if it still does not work I suspect a hardware problem.
Click to expand...
Click to collapse
Thank you for the reply!!
Kernal flash worked and I was super excited to get back to recovery menu -- way more progress than I've had up until now!
Unfortunately when it went to reset after installing the update from external storage, it went straight back into the Sammy logo boot loop

Is there physical damage on the phone, thus why att didn't do the warranty?
Sent from my HTC One_M8 using Tapatalk

LiquidArrogance said:
Thank you for the reply!!
Kernal flash worked and I was super excited to get back to recovery menu -- way more progress than I've had up until now!
Unfortunately when it went to reset after installing the update from external storage, it went straight back into the Sammy logo boot loop
Click to expand...
Click to collapse
Take it to Best Buy or an ATT Store and have them reflash it before you toss it away. Good luck

muniz_ri said:
Take it to Best Buy or an ATT Store and have them reflash it before you toss it away. Good luck
Click to expand...
Click to collapse
No idea what just happened. I've been messing around throwing the kernel you recommended at it as well as the stock partitions. Kept getting back to boot loop but at one point it stuck out, said it was upgrading, optimizing apps, and now it's running. So weird.
I'm way too scared to do the factory reset at this point, though.
Thank you again for your help, I really appreciate it!
Edit: Unplugged the USB cable and it immediately shut off and went back into boot loop. Wow.

this sounds like a hardware problem.. i sent my phone to Samsung and they actually repaired it, it was the pba board, i had the same problem.. i flashed everything it needed to recover from a bootloop. and sometimes it would become non responsive. go to best buy and see what they tell you.
Sent from my UNROOTED SAMSUNG-SM-G900A on OF2

Update:
Thanks to everyone for their replies. I was able to get the phone to boot thanks to everyone's help. Did this by flashing kernel then partitions which would allow the phone to boot.
I finally figured out that the phone would only boot if plugged directly into a power source. As soon as I disconnected the power cable, it would send it right back into the boot loop. I ran some battery "repair" and "calibration" tools but these did not fix the issue. Whenever I would run a battery drain tool, the stress on the battery would cause the phone to shut down.
All of this led me to believe it was an issue with the battery. I held my wife's S4 battery to the contacts on the S5, and it works just fine, even disconnected, and even with the stress test on the battery.
SO -- I'm going to buy a new battery and see if this fixes my problems. I think I just had the perfect storm of battery issues coupled with firmware problems.
I'm pretty sure I know what caused the battery to go haywire. I work in a max security prison and have to leave my phone in the car all day. Outside temperatures regularly hit 105F+ during the summer, so who knows how hot it's getting in the car. Obviously I always leave the phone turned off, but I suspect the high temperatures caused the damage.
Going to try to find a new battery today. Will keep everyone posted! Thank you again for all of the replies.

I had the same issue and would just like to thank you for the files! They helped me unbrick my phone! Much appreciated.

[Q] Note 3 Gone??!

Experiencing my first hard brick.. I should of stuck with stock but naturally wanted to flash a new rom, rooted n900a with safe strap running lollipop oc1. Been back and forth with safe strap, well wasn't paying enough attention on my last go around, instead of wipe, i formatted data , typed in yes, and phone just turns off and goes into a constant bootloop. I fire up odin, flash nl1 kernel and that gets me back into safe strap, but i am unable to mount data. Sooooooooo i go ahead and just format again, hoping this fixes the partitions.. it went smooth, i went to reboot, and reboot into recovery.. phone turns off and thats it.. nada.. zip.. no download mode, no recovery, no signs of any life whatsoever on the phone...
i guess my question now at this point is it totally gone? am i missing something to fix this?
http://forum.xda-developers.com/showthread.php?t=2476353
or is this my only possible solution?

Having Problems Please help- Phone is in a weird state SM-N910T

So first off thanks for reading and trying to help.
I am having the following problem:
First of no updates were installed recently. I did update to the latest December update in early January.
Few days ago my phone SM-N910T froze up and seemed to have shut down. After being unable to restart i pulled the battery, put it back in and nothing happened. I left it out for 5 minutes plugged it back in and the phone booted up. But as soon as the screen turned off the phone heated up and would not turn on. I've been dying to just start anew anyway so I tried using Kies to restore the phone however this failed twice.
I downloaded Odin and Stock N910T3UVS3EPK2.
I flashed TWRP Recovery. And then tried to Flash the firmware which failed several times and i started getting errors.
“Could not do normal boot, mmc_read failed”
Kernel is not seandroid enforcing
as well as others.
After rebooting it several times it started working I was able to log in and set everything up, but the phone started freezing up again.
I blew everything away did a Data Wipe in TWRP. I then downloaded N910T3UVS3EPK2 Stock Rooted Odex from here.
When trying to flash it, it failed several times. and i started getting No Pit Binary errors. After trying several times with different cables and USB ports it finally took. But i am still having the same problems with freezing and restarting.
THE ONLY THING THAT HELPED: And this is a band aid fix, is I installed the wake lock app from the google store and enable Partial Wake Lock.
The phone is stable but only until i restart it at which point it goes into Download Mode and i have to restart several times and prey it boots up.
HALP! :crying:

I had the same problem, and MANY MANY others have this issue too. For months i fought with it without any success. I ordered new motherboard and now my phone is working again.
Please check General forum. There is a big thread about installing KitKat from another phone which apparently fixed this issue. Dig around that thread and read about it, might be a solution!

AntonJart said:
I had the same problem, and MANY MANY others have this issue too. For months i fought with it without any success. I ordered new motherboard and now my phone is working again.
Please check General forum. There is a big thread about installing KitKat from another phone which apparently fixed this issue. Dig around that thread and read about it, might be a solution!
Click to expand...
Click to collapse
I saw that thread, but most of those people started having the issue after the update. If the kit kat update fixes it then i'm at a loss. And since a new board fixed the issue for you that means most likely the the memory is beginning to fail. That's how SSDs die anyway.

tempy1 said:
So first off thanks for reading and trying to help.
I am having the following problem:
First of no updates were installed recently. I did update to the latest December update in early January.
Few days ago my phone SM-N910T froze up and seemed to have shut down. After being unable to restart i pulled the battery, put it back in and nothing happened. I left it out for 5 minutes plugged it back in and the phone booted up. But as soon as the screen turned off the phone heated up and would not turn on. I've been dying to just start anew anyway so I tried using Kies to restore the phone however this failed twice.
I downloaded Odin and Stock N910T3UVS3EPK2.
I flashed TWRP Recovery. And then tried to Flash the firmware which failed several times and i started getting errors.
“Could not do normal boot, mmc_read failed”
Kernel is not seandroid enforcing
as well as others.
After rebooting it several times it started working I was able to log in and set everything up, but the phone started freezing up again.
I blew everything away did a Data Wipe in TWRP. I then downloaded N910T3UVS3EPK2 Stock Rooted Odex from here.
When trying to flash it, it failed several times. and i started getting No Pit Binary errors. After trying several times with different cables and USB ports it finally took. But i am still having the same problems with freezing and restarting.
THE ONLY THING THAT HELPED: And this is a band aid fix, is I installed the wake lock app from the google store and enable Partial Wake Lock.
The phone is stable but only until i restart it at which point it goes into Download Mode and i have to restart several times and prey it boots up.
HALP! :crying:
Click to expand...
Click to collapse
Do you have "T3"or "T" model?
The files given below is for "T" variant do not try if you have T3.
It sounds crazy to tell you but trust me this will work.
Put your phone in freezer for about 2 hours then do the steps below if you want to recover your device as it was before.
Go to download mode
Flash 5.0.1 modem via odin choose (CP) tab this will fix emmc read fail error.
https://www.androidfilehost.com/?fid=24052804347820086
Dont reboot to system go to download mode again.
Then flash full 5.1.1 lollipop ok1 firmware
https://www.androidfilehost.com/?fid=312968873555011894
.once it pass dont let the phone reboot.
Go to stock recovery and wipe cache & data factory reset.
Reboot wait 10 minutes dont touch anything let the phone rest.
Complete setup and dont download anything any apps go to software update and take all marshmallow ota updates.
Once finish do factory reset again and you will get clean operating system without any issues.

Trex888 said:
Do you have "T3"or "T" model?
The files given below is for "T" variant do not try if you have T3.
It sounds crazy to tell you but trust me this will work.
Put your phone in freezer for about 2 hours then do the steps below if you want to recover your device as it was before.
Go to download mode
Flash 5.0.1 modem via odin choose (CP) tab this will fix emmc read fail error.
https://www.androidfilehost.com/?fid=24052804347820086
Dont reboot to system go to download mode again.
Then flash full 5.1.1 lollipop ok1 firmware
https://www.androidfilehost.com/?fid=312968873555011894
.once it pass dont let the phone reboot.
Go to stock recovery and wipe cache & data factory reset.
Reboot wait 10 minutes dont touch anything let the phone rest.
Complete setup and dont download anything any apps go to software update and take all marshmallow ota updates.
Once finish do factory reset again and you will get clean operating system without any issues.
Click to expand...
Click to collapse
I have the " T " variant
I've read this before. I am a logical person I want to understand why this would work. Also when placing the phone in the freezer (i feel like i'm being pranked) do i place it in there with the battery?
I will definitely try this since I have nothing to lose. But i have a phone heavy next few weeks and i don't have a backup

tempy1 said:
I have the " T " variant
I've read this before. I am a logical person I want to understand why this would work. Also when placing the phone in the freezer (i feel like i'm being pranked) do i place it in there with the battery?
I will definitely try this since I have nothing to lose. But i have a phone heavy next few weeks and i don't have a backup
Click to expand...
Click to collapse
Without battery in freezer.
No idea how it works but good thing is hopefully it will work cuz lot of users even recover their hard bricked devices by this.
As you said you have nothing to lose so give it a try and make sure be patient dont give up and do this when you have enough time to do at least couple of hours.

I should mention that I had an 'injured' 910t after upgrading, and the freezer thing worked for months. I think there is a thermal issue and something is physically getting de-soldered in the motherboard. @Trex888, I will try your fix - I got a NEW Note4 2 weeks ago and it is running 5.0.1 and it bricked....
IF ANY OTHER COMPANY SOLD A PHONE WITH STYLUS, i WOULD TOSS THE NOTE4 IN THE TRASH....

keithwwalker said:
I should mention that I had an 'injured' 910t after upgrading, and the freezer thing worked for months. I think there is a thermal issue and something is physically getting de-soldered in the motherboard. @Trex888, I will try your fix - I got a NEW Note4 2 weeks ago and it is running 5.0.1 and it bricked....
IF ANY OTHER COMPANY SOLD A PHONE WITH STYLUS, i WOULD TOSS THE NOTE4 IN THE TRASH....
Click to expand...
Click to collapse
so wait the freezer thing was not even a permanent fix?

No, the freezer sometimes helps you get a bricked device so that it turns on. It doesn't fix thermal issues. I believe it helps some electrical connection that has broken come into contact again.

I can't go to download mode or recovery. I tried both ways But there is no way to use my device.

Trex888 said:
Do you have "T3"or "T" model?
The files given below is for "T" variant do not try if you have T3.
It sounds crazy to tell you but trust me this will work.
Put your phone in freezer for about 2 hours then do the steps below if you want to recover your device as it was before.
Go to download mode
Flash 5.0.1 modem via odin choose (CP) tab this will fix emmc read fail error.
https://www.androidfilehost.com/?fid=24052804347820086
Dont reboot to system go to download mode again.
Then flash full 5.1.1 lollipop ok1 firmware
https://www.androidfilehost.com/?fid=312968873555011894
.once it pass dont let the phone reboot.
Go to stock recovery and wipe cache & data factory reset.
Reboot wait 10 minutes dont touch anything let the phone rest.
Complete setup and dont download anything any apps go to software update and take all marshmallow ota updates.
Once finish do factory reset again and you will get clean operating system without any issues.
Click to expand...
Click to collapse
So i recently had a baby, thus i had no time at all to get my phone to work. WakeLock app was working alright.
But last night the phone just died. all attempts to revive failed. I left it in the freezer until the morning and it booted up but quickly locked up after about 5 minutes of use and became unresponsive.
I tried your method.
I failed right away. Modem could not be written..
I tried flashing the pit files like i did previously and that failed as well.
Any suggestions are appreciated. I am phoneless
EDIT#2: After I left the phone in the freezer for longer (3 hours). The odin firmware update went through !!!! This furtherst i've gone so far.
I went into recovery and did everything you said.
BUT now i have Kernel Panic Upload Mode on my screen with a little green android
EDit#3 few battery pulls later. And an over 15 minute wait time on the android logo and then about the same on the t-mobile logo i got into the OS. I did the OTA update, the phone heated up and a few restarts later it froze up like it did previously
Back to square 1

EDIT: THIS helped for a few days
https://forum.xda-developers.com/note-4-tmobile/general/ddi-mmcread-failed-boot-error-fix-t3434335
Day 2: and all went back to the phone not waking up and after screen is turned off

Extreme boot loop error, help!

So I have a very odd problem, and I'm fairly experienced with repairing, rooting, and reverting phones to stock which have custom roms, in this case I have a completely stock note 5 which was experiencing a boot loop error at the note 5 model number screen. Going through the motions I normally would, hard reset, nope, safe mode, nope, wipe cache, nope, master reset, nope, so I flash the firmware with a stock rom, which worked, but resulted in the same problem, rebooting at the model number screen just before the samsung logo every few seconds, tried 3 other firmware versions and downloads, also no. Not sure whats up with this thing, but anyone have any ideas? I personally know the user, family, phone wasnt physically damaged or exposed to water. I'm also getting no command just before entering recovery and failed to mount/ preload (no such file or directory) during the master reset. Its been forever sense I've meddled with a note 5 and cannot remember if these are normal, or related to the issue, I dont ever remember seeing these with my own note 5.

I ran into this exact same problem weeks ago on my S7. I tried flashing 7.0 on my 930V and for whatever reason the phone went into the exact same bootloop showing the Samsung logo every few seconds, vibrating, etc. I got back into download mode but wasn't able to fix it. Then went into Recovery and it only said in blue letters in the top left "Recovery rebooting" and kept flashing that message. Lucky for me I was under warranty and sent it to Samsung. They replaced it free of charge. I ended up trading for a Note 5. I kept running into issues with my S7 and network issues so I traded it.
Anyway, I'm like you in the fact I'm pretty comfortable rooting, repairing devices etc. But I still don't know what I did to mess up that S7 in Odin. Just wanted to share that I had a similar situation. Hope you were able to get a new phone or fix your issue.

sinkableelk said:
So I have a very odd problem, and I'm fairly experienced with repairing, rooting, and reverting phones to stock which have custom roms, in this case I have a completely stock note 5 which was experiencing a boot loop error at the note 5 model number screen. Going through the motions I normally would, hard reset, nope, safe mode, nope, wipe cache, nope, master reset, nope, so I flash the firmware with a stock rom, which worked, but resulted in the same problem, rebooting at the model number screen just before the samsung logo every few seconds, tried 3 other firmware versions and downloads, also no. Not sure whats up with this thing, but anyone have any ideas? I personally know the user, family, phone wasnt physically damaged or exposed to water. I'm also getting no command just before entering recovery and failed to mount/ preload (no such file or directory) during the master reset. Its been forever sense I've meddled with a note 5 and cannot remember if these are normal, or related to the issue, I dont ever remember seeing these with my own note 5.
Click to expand...
Click to collapse
My suggestion is this..
Download the latest version of TWRP
Boot to Download Mode
Odin flash TWRP
Boot to TWRP Recovery
Full wipe including internal storage x 2
Format DATA x 2
Odin flash the latest firmware for your device
(All 4 - BLUE, AP, CP, CSC)
OR
Use Smart Switch Emergency Recovery to restore the firmware.
Hope this helps. Good luck and happy flashing! Let's us know what happens.
Sent from my Samsung SM-G955U using XDA Labs