Develop Bugs

[Q] Galaxy S3 TCE (SGH-I747M) Screen going blank randomly

Hello guys,
Long time reader/user, first post...
Here is the story... On a concert last week, my GF's Galaxy S3 fell into one big beer glass... it was an accident, nothing to do about it.
After we cleaned all we can in site and let it dry for 24 hours, we turned it on and found the screen was damaged... damn... ok, I got a working screen from a friend and replaced the original... At first everything was OK, but after some 8-10 hours, the screen started to go blank on random events (pressing the apps button, opening an SMS, pressing the power button to lock, and several other actions)...
We did a factory reset, it worked for a while and then failed again... removed the battery and put it back on... worked for some time and then it happened again...
As it was recently upgraded to 4.3 (TCE) software, and it stops happening from time to time, I thought it was a software issue, so then I reinstalled the stock firmware using Odin... it worked for 8-9 hours and then it happened again.
Then, I rooted the device and installed CM 10.2 ... Worked fine again for a while and then it got even worse.
Tried to install Stock ICS (4.1.1) firmware downloaded from sammobile.com, but the install failed and the phone was soft-bricked.
Used Odin again to install 4.3 stock firmware again and it worked... for some hours again...
Tried using a different battery... same issue... removed the SDCARD... same issue...
I still think the stock ICS 4.1.1 (TCE) firmware may work, but unfortunately I cannot find it to download... all the sites (including posts here on XDA) direct to a link on "Hotfile", that unfortunately was taken down by the goverment for piracy issues.
I'm out of ideas now, so, if you guys have this firmware, please help me sharing it, or if you have other ideas to troubleshoot this issue, it will be greatly appreciated... my GF has only one month with this phone and is very frustrated.
Thanks in advace. Kind regards,
--
Bureizu (Xperia S LT26i - LB - JellySlim_FullPower)

[BUMP 25/12/2013]
Hey guys.
No response yet? Help please.

Ok, cleaned all the apps installed by Google Play from the computer... flashed back stock JB... and we're installing apps one by one... problem reappeared but less frequently...
I'm thinking memory issue... not really sure...
If anyone has some advice, it will be greatly welcome...

Random Restart Issues

I have been having issues with my Note3 ever since the kit kat update back in April. It worked flawlessly on Jelly Bean and I had no issues for over 3 months. I updated to kit kat via Kies with everything completely stock. Since then I get completely random reboots, it could happen when launching an app or even unlocking the screen, and it happens 2 or 3 times a day. So far I have tried 2 factory resets, clearing dalvik cache, and replacing the battery with an Anker replacement. I have tried turning off auto-updating of apps, and turning off wifi scanning. I have also tried running the phone with no apps installed. So far nothing has worked.
I have read several posts with people blaming the stock kernal for these reboots, but there is no definitive solution to this problem. I am looking for any and all help the community has to offer.
Some additional info:
Running latest stock rom- rooted via effortless method
Stock Recovery
Knox is still 0x0
No sd card in phone

Since you have no issues doing a factory reset, I recommend the following:
1.). Backup all the data you need
2.) Download the newest carrier available firmware for you from sammobile.com
3.) Flash via Odin
4.) Once finished and phone has rebooted, return to stock recovery and perform another data wipe
That will 100% fix your issues, sounds like maybe a corrupt system partition or libs

icenight89 said:
Since you have no issues doing a factory reset, I recommend the following:
1.). Backup all the data you need
2.) Download the newest carrier available firmware for you from sammobile.com
3.) Flash via Odin
4.) Once finished and phone has rebooted, return to stock recovery and perform another data wipe
That will 100% fix your issues, sounds like maybe a corrupt system partition or libs
Click to expand...
Click to collapse
Thanks, I'll give this a try. Last night I uninstalled a bunch of bloat ware with titanium backup to make sure it's still not an app issue. If it reboots again I'll reflash the firmware. Since I'll. Be flashing stock it shouldn't trip knox right?

No, latest firmware complete stock will not trip Knox, as long as you're either doing a parallel upgrade NF9 > NF9 or NB4 > NF9. A downgrade will either fail or trip.

For anyone reading this, i tried to reflash the stock nf9 kernal to see if that was the issue, but i got a restart about 4 hours later. I am going to reflash the firmware via odin and report back.

I am having this issue for a long time. i have done everything, and finally i gave up, as i think it is a hardware issue. what make me confuse is the problem start since the day i upgrade to kit-kat. with every firmware come out i have a new problem. the latest "NF9" my phone just hang and black screen untill i press the power button for 30 second, then will restart. what make crazy is that it shuts off at night, and when i woke up i miss the alarm.

I'm sad to report that the reflash didn't work. I reflashed the NF9 firmware using odin about 4 days ago and it was fine for awhile, but I got 2 reboots today. I'm not sure what is causing this, but I am still open to suggestions. I don't think its hardware related since it didn't do this before kitkat. I still have my samsung warranty until february I believe, so if worst comes to worst then ill have to send it in, but i'm not sure what they will do about it.

The only thing I havent tried is replacing the sim card. Could a sim card cause a reboot issue like this?

i have already done it, even the SD card, still same problem.

Is there some kind of log feature in android that logs crash events or errors somewhere so i can maybe figure out what the problem is?

by the way i think i have solve my problem by updating busybox and supersu. i had to install busybox to system/xbin. and since that day i haven't encounter any restart or freez. almost 2 week. i hope that fix your problem as well.

makki666 said:
by the way i think i have solve my problem by updating busybox and supersu. i had to install busybox to system/xbin. and since that day i haven't encounter any restart or freez. almost 2 week. i hope that fix your problem as well.
Click to expand...
Click to collapse
I do not have busybox installed, and SuperSU is up to date. Also, the restarts happen with or without root ie without SuperSU. I still dont think its an app problem.
Just an update for anyone reading this. I have installed SetCPU to manage cpu clock speeds. I have had it installed for about a week and have not had an update with my custom profiles. It seems the restarts occur when cpu speed is at about ~675MHz. Not sure if its hardware or software yet. Any help is appreciated!

Update. I sent my phone in to samsung for repair. It looks like they just reflashed the firmware. After having it up and running again for 15 minutes the phone rebooted again. I contacted samsung and they recommended sending it in again. I'm not sure if it's worth it to send in again or if i should break my warranty and flash a custom rom. Any suggestions are welcome!

I get restarts because the modem crashes... its a known issue apparently

gtharea said:
I get restarts because the modem crashes... its a known issue apparently
Click to expand...
Click to collapse
I cant believe its taken over a year for this issue to get fixed. Im almost positive its a software issue since it never happened on jelly bean. It's strange that not a lot of people have this problem though. A lot of people must have already flashed custom roms I may send it in again since I still have knox 0x0 and see if they do anything else besides reflash the firmware this time. If they only do a reflash again i will just flash a new rom and hopefully everything will be fixed

Final Update:
I sent my phone back to Samsung, apparently my issues were a hardware problem. This time they replaced the "PBA assembly" aka the mainboard. I have had the phone back for almost two weeks without a single restart. I believe my restart problems are over. I hope this information helps anyone with similar issues. I would recommend sending it to Samsung for warranty repair if you are still under warranty. :good:

_bhaves_ said:
Final Update:
I sent my phone back to Samsung, apparently my issues were a hardware problem. This time they replaced the "PBA assembly" aka the mainboard. I have had the phone back for almost two weeks without a single restart. I believe my restart problems are over. I hope this information helps anyone with similar issues. I would recommend sending it to Samsung for warranty repair if you are still under warranty. :good:
Click to expand...
Click to collapse
I had the same problem but already tripped knox so iffy on sending it in. Funny thing is I did the external sd write fix and the phone has not rebooted since, going on 3 days.

meoshe said:
I had the same problem but already tripped knox so iffy on sending it in. Funny thing is I did the external sd write fix and the phone has not rebooted since, going on 3 days.
Click to expand...
Click to collapse
I would get reboots even without an SD card put in the phone, so I don't think that would have helped me. I havent had a reboot since I've had the device back

[Q] S4 mini rebooting very often!

Hi all!
First of all thanks for your work..it's awesome!!thanks to you i enjoyed my s plus until some days ago it has broken..very sad day
However i decided to move on with a more modern cel, so i decided for a s4 mini.
But since the beginning i've had lot of problems..
My phone after an original update from samsung started to freeze and reboot..more and more often..i read it could be an issue with original update so i decided to mod my phone since i've had great improvements with my old s plus..
first i installed cm11 but the phone keep rebooting and rebooting ..so i installed cm12 with android l..but the problem is still here!!
the more my phone became hot the more it reboot..it's unusable and i don't know what to do..i'm also begin to doubt it's a hw problem
my warranty is gone with all this mods..so what to do? any others has this kind of problem?
thanks if yo want to answer

People encountering this should perform a factory reset and wipe everything from the phone.
Then, perform a clean install of whichever rom you wish to use, without any additional apps.
I recently encountered an issue with Apex Launcher and a recent update. Android keep crashing and soft rebooting often.. only after a few days did I realise the launcher was the issue. Since I uninstalled the app the phone hasnt restarted once!

Mine restarts after i turn on Mobile Data + GPS for navigation..
It works for a minute and restarts.
I don't know where the problem is either. I tried to flash cm10, 11.. stock 4.2 / 4.4 and nothing seems to get me rid of the problem

[Q] Help! What have I done to my Pro 10.1

Here's the story. I purchased a factory refurb'd Tab Pro 10.1 (SM-T520NZKAXAR) on Woot a few weeks back. I live in Canada, but it is a USA tablet, if that matters. It came with a 90-day Samsung warranty. As soon as I got it, I started looking at custom ROMs. I have experience with custom ROMs on my HTC One m8 (and old m7), but not with any Samsung devices. I wish I had kept it stock for a few weeks first to check it out, but here we are.
I created a nandroid backup of the stock firmware, however I quickly deleted it during a wipe when flashing my first custom ROM, which was GraveD's v3.0. It seemed to go OK, but then it would start to freeze up and reboot on it's own. This seemed to happen mostly under load, and especially when trying to install apps from the Play store. I tried going back to the stock kernel, thinking that could be the problem. It stopped the crashing, but then wifi wouldn't work. So I could choose between having a tablet that crashes all the time, and has difficulty installing apps, or one without wifi. Both were basically useless.
I tried installing another custom ROM, GigaWatts Pro. Again, flashing seemed to go well, and the ROM also seemed to work very nicely for a couple of days. No random reboots, and wifi worked great. I spent a few days downloading all of my apps and getting things set up the way I like, when yesterday something went wrong. Perhaps the tablet lost its root (is that possible?). All of a sudden, apps are crashing all over the place (Unfortunately, [insert app name] has stopped). Titanium backup hangs at "Asking for root...". Installing apps is also difficult again. The tab doesn't reboot on it's own, but Play Services crashes constantly. Whenever I try to get into developer options, the Settings app crashes. I'm not even 100% sure USB debugging is enabled right now, although I'm still able to flash using ODIN.
I tried doing a factory reset and re-installing GigaWatts. Same problems. Tried making sure the root was OK. Same problems. I've tried using twrp 2.8.0.0 as well as 2.7.1.0 with no luck.
Right now, I've downloaded the stock firmware for Canada T520UEUANI1 4.4.2 (although the tab was bought from a USA site). I assume this also installs it's own Kernel. It shows Kernel version:
3.4.39-2776001
[email protected] #1
Mon Sep 15 17:44:40 KST 2014
I'm experiencing the same problems. Google Play Newsstand crashes every 10 minutes or so. Settings is almost useless. Installing apps is problematic.
Can anybody tell me if there's something I'm missing? Anything left to try? Does it sound like a hardware/ROM/kernel problem? If it's hardware, can I still utilize the Samsung warranty after trying to flash custom ROMs? I'm going to try to download another Cellular South stock ROM, but it seems like the problems are persisting regardless of which ROM i have installed, so I think it's something else (kernel or hardware-related).
Any help is GREATLY appreciated. My new tablet is basically useless, and I've run out of ideas.

Try this latest firmware since you mentioned your tablet is the XAR model the firmware should be cellular south (wifi)
http://www.sammobile.com/firmwares/download/39630/T520UEUANK1_T520XARANK1_XAR.zip/
If that doesn't help then it could just be a bad tablet .
(btw when you flashed a custom rom you probably tripped the hardware knox flag and voided any warranty it had, I guess you could play dumb if they ask and say it came like that since it was refurbished, and hope they still repair/replace it)

I just tried the USA cellular south firmware. Still experiencing the exact same issues. I'm completely out of ideas. Does anyone else have any ideas? Otherwise I'm going to have to try warranty service and hope for the best. Is there anything I can do to restore the Knox flag before I send it in?
Also, in download mode the tab is recognizing the system as custom. Is this normal after flashing a stock image?

So do a factory reset in recovery, and clear the cache also. Then load the cellular South file thru Odin. Then factory reset again. See if this clears your problems.

k8108 said:
So do a factory reset in recovery, and clear the cache also. Then load the cellular South file thru Odin. Then factory reset again. See if this clears your problems.
Click to expand...
Click to collapse
I've tried the Cellular South firmware to no avail. I'll be trying to warranty the tablet now. Fingers crossed!

Galaxy tab S SM-T800 random restarts probably since marshmallow update

So i've already searched for this problem but i couldn't find anything. This tablet belongs to my grand parents. They only do simple things on this tablet such as solitaire, browse internet or watch the weater. Since 11 days they have a problem with random restarts of the tablet. I don't know if it is related to the battery connector on the mobo but i haven't seen the issue yet because it occurs randomly. I am experienced with installing roms and rooting but couldn't find a way on how to downgrade this tablet to lollipop. Is this a possible hardware failure or do i need to downgrade?
Greetings from the Netherlands.

daxanoxe said:
So i've already searched for this problem but i couldn't find anything. This tablet belongs to my grand parents. They only do simple things on this tablet such as solitaire, browse internet or watch the weater. Since 11 days they have a problem with random restarts of the tablet. I don't know if it is related to the battery connector on the mobo but i haven't seen the issue yet because it occurs randomly. I am experienced with installing roms and rooting but couldn't find a way on how to downgrade this tablet to lollipop. Is this a possible hardware failure or do i need to downgrade?
Greetings from the Netherlands.
Click to expand...
Click to collapse
Had similar, reinstall after full wipe seems to have solved random reboot.

Ok, i will Factory reset it and then Flash the Stock rom with Odin and post my results when i have time. Thank you.

I have just reinstalled touchwiz via kies 3's firmware upgrade. First time went bad because of the cable. Second time went good and i will be giving the tablet to my grand parents as soon as i can. Will reply when fixed or still occuring.

and if everything fail, check the battery connections