Develop Bugs

EMERGENCY - Total Brick Instant Bootloop

Screen went black.
Pulled battery.
Battery In.
Plugged into PC.
I get OMAP4440 in Device Manager for 0.8 seconds then instant dead phone.
OMAP4440 comes back half a second later then back to dead phone.
No Fastboot, No LCD, No Nothing.
DEAD Battery, I will keep it plugged in overnight, the USB may not be giving it enough voltage for the boot.
Any help greatly appreciated. There is not enough time to flash anything while the phone is actually "on" for the 0.8 seconds.

What caused the screen to go black? Did you flash something right before?
I mean this is no regular boot up, you obviously attempted something right before boot up!
Sent from my Galaxy Nexus using xda premium

why not charge in the wall in the mean time? (just curious)

See if you can get a hold of one of these: http://www.amazon.com/SainSmart-Don...73JQ/ref=sr_1_1?ie=UTF8&qid=1326592299&sr=8-1
When you plug it in, it boots the phone into ODIN mode.
But yeah, firstly, try charging the phone up first.

XOAngio said:
What caused the screen to go black? Did you flash something right before?
I mean this is no regular boot up, you obviously attempted something right before boot up!
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
I was doing a battery calibration, resulting in many battery pulls.

Berzerker7 said:
See if you can get a hold of one of these: http://www.amazon.com/SainSmart-Don...73JQ/ref=sr_1_1?ie=UTF8&qid=1326592299&sr=8-1
When you plug it in, it boots the phone into ODIN mode.
But yeah, firstly, try charging the phone up first.
Click to expand...
Click to collapse
I am keeping it plugged in overnight to charge. Hoping for the best.

first, be sure to remember to unplug the cable when you are doing your battery pulls (dunno if you know, so there ya go)
second, http://www.xda-developers.com/andro...-battery-stats-does-not-improve-battery-life/

i have the same problem the phone is total low battery and not charghing not usb not at wall i don't know but i think the reason is battery calibration because i use as far as user in question

[Q] S3 wont turn on?

Guys im having an issue with my week old s3...my battery power hit 0 percent and phone turned off and now when i plug it in it wont turn on. It will give me the little battery icon for less than a second before shutting off. I am getting no response from the phone and dont know what to do. I tried volume+ up and volume +down to no avail. Im pretty irritated at this point and need some insight. Have tried diffrent chargers and they all give me battery icon before shutting of.

What room are you on?
Have you tried just letting it charge and sit there
When my s3 but zero I plugged it in
Didn't lead power till like 5 min afterwards and it worked fine
Sent from my SPH-L710 using xda premium

gtuansdiamm said:
What room are you on?
Have you tried just letting it charge and sit there
When my s3 but zero I plugged it in
Didn't lead power till like 5 min afterwards and it worked fine
Sent from my SPH-L710 using xda premium
Click to expand...
Click to collapse
Im on freegs3 latest.... It wont charge or anything...its 4am here and this just happened after i was in the middle of making some random homescreen edits. Hit 0 and when i plugged it in it would just be unresponsive. I dont even know if its charging but its been plugged it for well over 5 minutes i believe. Could undervolting have anything to do? I just dont have the time to go to the sprint store and need phone for work.
Sent from my SCH-I800 using Tapatalk 2

Having the exact same problem on my phone as well running FreeGS3 v3.0 and Ktoonz kernel.

This is how I fixed mine.
Plug it in and get it to show the empty battery with a circle in it. Once you see that plug it in and leave it alone for a while at least five minutes, yes the battery sign should only stay for a second. It should just go black screen no charging light.*After five minutes or so unplug it, pull the battery, and put it back in leave the phone unplugged and hold the power button a while. Some times they act weird when they dieThis is how I fixed mine.

mcluvin1065 said:
Guys im having an issue with my week old s3...my battery power hit 0 percent and phone turned off and now when i plug it in it wont turn on. It will give me the little battery icon for less than a second before shutting off. I am getting no response from the phone and dont know what to do. I tried volume+ up and volume +down to no avail. Im pretty irritated at this point and need some insight. Have tried diffrent chargers and they all give me battery icon before shutting of.
Click to expand...
Click to collapse
When you plug it in, and see the icon, let it go for on charge for about 10s, unplug the usb, then hold the power button and see if it turns on then.

Mine will be in my pocket and won't respond like it is off. I have to hold the power button for 10seconds and it will come back on This is only happening shortly after a full charge. FreeGS3 Rom.

So is this a rom issue?
Sent from my SCH-I800 using Tapatalk 2

G3noobie said:
This is how I fixed mine.
Plug it in and get it to show the empty battery with a circle in it. Once you see that plug it in and leave it alone for a while at least five minutes, yes the battery sign should only stay for a second. It should just go black screen no charging light.*After five minutes or so unplug it, pull the battery, and put it back in leave the phone unplugged and hold the power button a while. Some times they act weird when they dieThis is how I fixed mine.
Click to expand...
Click to collapse
And i can confirm this fix worked for me. Thanks a ton friend. I appreciate everyone's help on this little weird issue.
Sent from my SCH-I800 using Tapatalk 2

http://forum.xda-developers.com/showthread.php?p=35987091#post35987091
I made a thread because I was having the exact same problem. Click on the link I attached in my first post. It's from the T-Mobile GS3 because they are having the same issue. The last post said flashing back to stock fixed the problem.

Just ran into this issue yesterday. I threw the battery into a standalone Anker charger for a while to get some juice back, and the phone powered up and charged fine from there.
I'm also on FreeGS3/ktoonsez.
Sent from my SPH-L710 using xda app-developers app

Borrow a friends battery and switch roms
Sent from my SPH-L710 using xda premium

Also had this issue with ktoonz's kernel and freegs3. Went back to stock kernel and it's fine. I ended up using a friend's phone to get battery to charge.

[Q] HTC One X Discharged and Now Won't Charge At All

Hi, I have a One X which discharged to nothing on Saturday night/Sunday morning as I was in hospital and my wife was using it to call people.
I had a similar problem in June, once dead it won't take any charge, it won't power up normally and it won't boot up either with the volume down being pressed at the same time.
Nothing lights or flashes.
In June I sent it to O2 and it came back fixed, but I've had a conversation today to say the warranty is voided as I've rooted it.
They are saying that it needs a new main board as it is rooted. I kept explaining that I don't need a new board, just some charge to be put into the battery.
I do think that I've tried everything this time, and last, to get the phone started again without sending it away, but I'd appreciate advice on getting it up and running and how best to deal with O2, what arguments to use etc.
Many thanks

PoshCat1 said:
Hi, I have a One X which discharged to nothing on Saturday night/Sunday morning as I was in hospital and my wife was using it to call people.
I had a similar problem in June, once dead it won't take any charge, it won't power up normally and it won't boot up either with the volume down being pressed at the same time.
Nothing lights or flashes.
In June I sent it to O2 and it came back fixed, but I've had a conversation today to say the warranty is voided as I've rooted it.
They are saying that it needs a new main board as it is rooted. I kept explaining that I don't need a new board, just some charge to be put into the battery.
I do think that I've tried everything this time, and last, to get the phone started again without sending it away, but I'd appreciate advice on getting it up and running and how best to deal with O2, what arguments to use etc.
Many thanks
Click to expand...
Click to collapse
Try plugging it in to the charger and pressing the power button quickly 3 times. Keep trying that until it powers on and then charge as usual.

nms247 said:
Try plugging it in to the charger and pressing the power button quickly 3 times. Keep trying that until it powers on and then charge as usual.
Click to expand...
Click to collapse
Thanks, they want £180 so I'm best getting it back and starting again.

PoshCat1 said:
Thanks, they want £180 so I'm best getting it back and starting again.
Click to expand...
Click to collapse
Just Plug it in With Official HTC Cable In A New PC which has USB 2 or greater port. Eventually after sometime you will c blinking red light. Once you get blinking red light pull out and plug it back in again after some time red led will become stable. at this point turn on the phone.
Once the OS loads again repeat Plug out Plug In USB Cable. It should now charge. If it stops charging repeat Plug out Plug again. Hope this helps.
I am doing this now and i have reached 12%. Hope this helps you

nms247 said:
Try plugging it in to the charger and pressing the power button quickly 3 times. Keep trying that until it powers on and then charge as usual.
Click to expand...
Click to collapse
Cheers, I'll try that too.

deathbearer said:
Just Plug it in With Official HTC Cable In A New PC which has USB 2 or greater port. Eventually after sometime you will c blinking red light. Once you get blinking red light pull out and plug it back in again after some time red led will become stable. at this point turn on the phone.
Once the OS loads again repeat Plug out Plug In USB Cable. It should now charge. If it stops charging repeat Plug out Plug again. Hope this helps.
I am doing this now and i have reached 12%. Hope this helps you
Click to expand...
Click to collapse
Oops, wrong quote, I meant I'd try this too.

mine has reached 50% now. willl flash latest rom. also make sure once you boot in os goto settings>power>untick fast boot and restart the phone. and continue charging like i said.
Sent from my MB860 using xda app-developers app

nms247 said:
Try plugging it in to the charger and pressing the power button quickly 3 times. Keep trying that until it powers on and then charge as usual.
Click to expand...
Click to collapse
I have it back now.
I'm trying this method first, will it work straight away or do I need to leave it for an hour or so?

PoshCat1 said:
I have it back now.
I'm trying this method first, will it work straight away or do I need to leave it for an hour or so?
Click to expand...
Click to collapse
I left it charging all night but pressing the button quickly did not work.
I'm now trying leaving it plugged into my PC.
Any idea how long before this might show a red light?
Also, is this any different to leaving it plugged into a power lead?
Cheers

PoshCat1 said:
I left it charging all night but pressing the button quickly did not work.
I'm now trying leaving it plugged into my PC.
Any idea how long before this might show a red light?
Also, is this any different to leaving it plugged into a power lead?
Cheers
Click to expand...
Click to collapse
Actually it should show the blinking red light after 20 appx minutes after charging. Then after few minutes it should get stable, and then you can powerup the device.

sthbr82 said:
Actually it should show the blinking red light after 20 appx minutes after charging. Then after few minutes it should get stable, and then you can powerup the device.
Click to expand...
Click to collapse
Hmmmm, back from lunch, it's been plugged in since 9.00 this morning, 4 hours, and nothing.
Repair needed?

Ok, having taken it to a repairer I was told there was nothing wrong with the battery, charging unit etc, it was a complicated matter that they couldn't sort out.
Does anybody know of a reputable repairer who may be able to take a look please?
Many thanks.

Flashing Red Light, Now Phone Unresponsive

So I woke up this morning and my phone was A-OK. Charged to 100% overnight, and I left it plugged in while getting ready for work. I came back to it 20 minutes later and it was really warm/borderline hot to the touch (through a case). The battery was down to 85% yet still plugged in. I then drove to the train station 5 minutes away and it went down to near 50%, still really warm/hot.
Streamed some music and watched some Netflix on the 90 minute ride, and the battery was down to 35%. At this point I turned the phone off because it was still hot.
Plugged it in to charge at the office, and got a blinking red light for about 10 seconds. It then went solid red and stayed that way until I unplugged it 4 hours later. The phone was still quite warm, but no longer hot. Hold down the power button... nothing. Plug it back in, same red light pattern. I got nervous at this point and hit up good old El Goog to see what could be wrong.
Found a lot of threads pointing to the One X suffering this fate, along with a few One's. Followed the advise of holding VolUp + VolDown + Power for 2 minutes. The phone got hot again. Unplugged the phone, removed the SIM, and held the buttons again. The phone had cooled off dramatically while doing this, to the point that it is now cold to the touch. Reinserted the SIM, and plugged it in again... no light at all this time.
From this point on, the various threads disagree on the next steps. Plugging it in to the computer yields no light, just like an wall charger. I don't have the HTC cord with me at work. I've tried a Nokia micro USB cable and a Sony wall charger. Other suggestions call for leaving the phone off (like I have a choice on that part) and unplugged for several hours. Others say to mash the Power button for 10-20 times and that may cause it to power on.
Any suggestions on how I should proceed with this? My phone is unlocked, so I'd love to avoid replacing it.

NotATreoFan said:
So I woke up this morning and my phone was A-OK. Charged to 100% overnight, and I left it plugged in while getting ready for work. I came back to it 20 minutes later and it was really warm/borderline hot to the touch (through a case). The battery was down to 85% yet still plugged in. I then drove to the train station 5 minutes away and it went down to near 50%, still really warm/hot.
Streamed some music and watched some Netflix on the 90 minute ride, and the battery was down to 35%. At this point I turned the phone off because it was still hot.
Plugged it in to charge at the office, and got a blinking red light for about 10 seconds. It then went solid red and stayed that way until I unplugged it 4 hours later. The phone was still quite warm, but no longer hot. Hold down the power button... nothing. Plug it back in, same red light pattern. I got nervous at this point and hit up good old El Goog to see what could be wrong.
Found a lot of threads pointing to the One X suffering this fate, along with a few One's. Followed the advise of holding VolUp + VolDown + Power for 2 minutes. The phone got hot again. Unplugged the phone, removed the SIM, and held the buttons again. The phone had cooled off dramatically while doing this, to the point that it is now cold to the touch. Reinserted the SIM, and plugged it in again... no light at all this time.
From this point on, the various threads disagree on the next steps. Plugging it in to the computer yields no light, just like an wall charger. I don't have the HTC cord with me at work. I've tried a Nokia micro USB cable and a Sony wall charger. Other suggestions call for leaving the phone off (like I have a choice on that part) and unplugged for several hours. Others say to mash the Power button for 10-20 times and that may cause it to power on.
Any suggestions on how I should proceed with this? My phone is unlocked, so I'd love to avoid replacing it.
Click to expand...
Click to collapse
Have you tried the bright light trick? Hold the phone under a bright light (really bright light, the brighter the better) and hold down the volume button + power for 15-20 seconds. That should get you into your bootloader. This will tell you whether or not its rom based, or phone based.
If you cant even get into your bootloader, it sounds like a hardware problem. If you can get into your bootloader but it will not boot to your rom, then its software.
Thats all I got for now. Sorry.

Seriously sounds like a battery/charging issue, gives all signs of a discharging battery. That would explain the heat build-up.

Was you using the charger that came with it? Or are you using a different charger? I once used my motorola cord to charge my phone and it felt like it was going to burst in to flames. I then got the HTC cord that came with the phone and it cooled down.
Sent from my HTC6500LVW using Tapatalk 2

No luck on the bright light trick. I tried holding just power, power + down, power + up, and power + both underneath a fairly bright fluorescent light.

Dark Jedi said:
Was you using the charger that came with it? Or are you using a different charger? I once used my motorola cord to charge my phone and it felt like it was going to burst in to flames. I then got the HTC cord that came with the phone and it cooled down.
Sent from my HTC6500LVW using Tapatalk 2
Click to expand...
Click to collapse
I don't have the OEM charger here, but I was using it at home to charge it. I'm hoping leaving it alone for another 4 hours will bring it back to life on the HTC cable.

NotATreoFan said:
No luck on the bright light trick. I tried holding just power, power + down, power + up, and power + both underneath a fairly bright fluorescent light.
Click to expand...
Click to collapse
Lets hope that it didnt turn on because the battery died. Hopefully the OEM HTC cable/charger will fix your issue.
If your battery is truly completely drained, it may take a few seconds for the light to finally come on... so dont freak out in the first 10 seconds.

Your battery could of went bad. Does your phone look like it has swelled anywhere from the battery expanding ?
Sent from my HTC6500LVW using Tapatalk 4

Red5 said:
Lets hope that it didnt turn on because the battery died. Hopefully the OEM HTC cable/charger will fix your issue.
If your battery is truly completely drained, it may take a few seconds for the light to finally come on... so dont freak out in the first 10 seconds.
Click to expand...
Click to collapse
I'm trying to remain calm until I get home. I haven't gotten a light in 30+ minutes of being connected to the Sony charger, but I'm chocking that up to it not being the HTC original.

Dark Jedi said:
Your battery could of went bad. Does your phone look like it has swelled anywhere from the battery expanding ?
Sent from my HTC6500LVW using Tapatalk 4
Click to expand...
Click to collapse
It's tough to properly gauge it with my eyes, but nothing looks off. If I press down on the center of the phone at the top, the it does not lift off the table. If that push from the center at the bottom, it does lift off ever so slightly. But I don't know if this is because of the camera location or what.

Called up Verizon just to make sure there's no other method that I didn't try, and they advised me to get a replacement. I've got a few days to try and get this thing working before I'll have to send it back and say goodbye to root.
Interestingly enough, they were sure to warn me about physical damage and being subject to a $299 charge if there is any damage. But they didn't make any mention about if the device is found to be unlocked.

Well the cooling down certainly could have been the battery finally being completely dead. Maybe stop in a Verizon store to try another battery? No chance a bad SIM card could cause this right?

kennyglass123 said:
Well the cooling down certainly could have been the battery finally being completely dead. Maybe stop in a Verizon store to try another battery? No chance a bad SIM card could cause this right?
Click to expand...
Click to collapse
Try another battery? You mean just pop off the back cover, take out the old battery and try a new one? You're one sick troll.

Red5 said:
Try another battery? You mean just pop off the back cover, take out the old battery and try a new one? You're one sick troll.
Click to expand...
Click to collapse
Yes..very devious!!! I don't know what I was thinking :silly:

kennyglass123 said:
Well the cooling down certainly could have been the battery finally being completely dead. Maybe stop in a Verizon store to try another battery? No chance a bad SIM card could cause this right?
Click to expand...
Click to collapse
I did remove the SIM before doing some of the steps as there were reports that a missing one will cause the phone to pop into recovery. I really hope I can get this one back to life so I don't have to wait for an S-Off exploit to root again.

Got home, plugged it in for several hours, no light. Looks to be quite dead.

Really sorry to hear this man.
I would keep it off 12-24 hours.
try it out.
also I have sent back MANY HTC Dev unlocked phones, they just flash the new software re-setting it back to S-ON, and stock. I don't think they really give a ****, esp if it's not an issue from say, S-OFF.

That's a pisser. My One has been rock solid. Sounds like a really weird issue. I doubt it's recoverable. I'd just go for the replacement. Generally even if it's unlocked they won't have any issue replacing it. In fact, here is Australia, retailers aren't allowed tor efuse warranty claims even if the device has been unlocked, rooted etc...
Perhaps put it into a bag and into the freezer for a few hours. That can sometimes resolve battery issues.

Did I read it correct that you were not able to go into the bootloader? (full Power off > vol down + power)?
If that's the case then you should head for a replacement.. if it is dead they probably wont be able to fire it up to check if its locked or not anyway

PG101 said:
Did I read it correct that you were not able to go into the bootloader? (full Power off > vol down + power)?
If that's the case then you should head for a replacement.. if it is dead they probably wont be able to fire it up to check if its locked or not anyway
Click to expand...
Click to collapse
Very good point, and by the time they do, the guys at the repair center can't physically go and find every rooted phone, then bring it to corporates attention, they get the phones, reflash the software fix the problems listed and out goes another returd. I mean refub, sorry.

[Q] Phone Boots when battery is connected then goes black.

First thing is first, I have been searching here and Google and have not found this exact problem.
I am running cm-11-20140719-NIGHTLY currently
Today my phone turned off on its own while connected to a car charger.
Here is what it is doing.
When the battery is connected the phone turns on and gets to the Samsung logo, then it goes black. No back light, nothing. If I pull the battery and re-insert it, it happens again. Once it goes black none of the buttons seem to be responsive (cannot force a reboot by holding the power button). Once it goes black if I connect it to a charger I get no LED indicating charge level.
If I try to boot into recovery I see the blue text and then it goes black.
If I try to boot into download mode I can get to the triangle screen if I am fast and then it goes black.
If I have a data USB cable connected and I connect the battery the phone does nothing, and will not respond to the power button, again no LED light indicating charge level.
If I have a charge only cable (wall outlet) connected and I connect the battery I see the battery charge icon for about 1 second and then the screen goes black. and the phone will not respond to any buttons.
I have duplicated all these things with 2 batteries both actual Samsung batteries, neither of the batteries is bubbled out at all.
I have tried leaving the battery out for several hours, but this did not help.
I have data on this phone that was not backed up so any suggestions I will try.
Thanks

daemorok said:
First thing is first, I have been searching here and Google and have not found this exact problem.
I am running cm-11-20140719-NIGHTLY currently
Today my phone turned off on its own while connected to a car charger.
Here is what it is doing.
When the battery is connected the phone turns on and gets to the Samsung logo, then it goes black. No back light, nothing. If I pull the battery and re-insert it, it happens again. Once it goes black none of the buttons seem to be responsive (cannot force a reboot by holding the power button). Once it goes black if I connect it to a charger I get no LED indicating charge level.
If I try to boot into recovery I see the blue text and then it goes black.
If I try to boot into download mode I can get to the triangle screen if I am fast and then it goes black.
If I have a data USB cable connected and I connect the battery the phone does nothing, and will not respond to the power button, again no LED light indicating charge level.
If I have a charge only cable (wall outlet) connected and I connect the battery I see the battery charge icon for about 1 second and then the screen goes black. and the phone will not respond to any buttons.
I have duplicated all these things with 2 batteries both actual Samsung batteries, neither of the batteries is bubbled out at all.
I have tried leaving the battery out for several hours, but this did not help.
I have data on this phone that was not backed up so any suggestions I will try.
Thanks
Click to expand...
Click to collapse
Return to stock with Odin to see if the problem goes away. If not, report back and we will go from there.

The Sickness said:
Return to stock with Odin to see if the problem goes away. If not, report back and we will go from there.
Click to expand...
Click to collapse
I would if I could get it into download mode... The screen will not stay on for more than 5 seconds and ODIN never sees the phone.

Here's a thread talking about that issue. I'm afraid it sounds like your display is dead:
http://forum.xda-developers.com/showthread.php?t=2267827
Sent from my SGH-M919 using XDA Premium 4 mobile app

I had this problem before and I was freaking out, but it was just the cord I used when trying to connect it, but yours sounds like an overload problem, maybe from your car charger if it plugs into the car lighter socket. My buddy has a super recharger that hooks into his lighter socket, and while it may charge fast, it might have jolted your phone, or maybe you had it over clocked in your rom? Or was it a recent occurrence or did it happen as soon as you installed the rom? Because this happens on a bad flash sometimes, if your Wi-Fi connection is shaky or far off, you could get a bad download and it will royally harm your time having to mess with it.
Sent from my GT-I9505G using XDA Free mobile app

Android_Monsters said:
Here's a thread talking about that issue. I'm afraid it sounds like your display is dead:
http://forum.xda-developers.com/showthread.php?t=2267827
Sent from my SGH-M919 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
If it was just the screen wouldn't I still be able to get into download mode?

NinjaTale said:
I had this problem before and I was freaking out, but it was just the cord I used when trying to connect it, but yours sounds like an overload problem, maybe from your car charger if it plugs into the car lighter socket. My buddy has a super recharger that hooks into his lighter socket, and while it may charge fast, it might have jolted your phone, or maybe you had it over clocked in your rom? Or was it a recent occurrence or did it happen as soon as you installed the rom? Because this happens on a bad flash sometimes, if your Wi-Fi connection is shaky or far off, you could get a bad download and it will royally harm your time having to mess with it.
Sent from my GT-I9505G using XDA Free mobile app
Click to expand...
Click to collapse
I had flashed the night before and it ran fine all night and all morning, then it just shut down. The car charger I use is not a super charger, but it is also not a Samsung charger. I was not overclocked and my wifi is not shaky usually.
Seems like I am screwed either way.

daemorok said:
First thing is first, I have been searching here and Google and have not found this exact problem.
I am running cm-11-20140719-NIGHTLY currently
Today my phone turned off on its own while connected to a car charger.
Here is what it is doing.
When the battery is connected the phone turns on and gets to the Samsung logo, then it goes black. No back light, nothing. If I pull the battery and re-insert it, it happens again. Once it goes black none of the buttons seem to be responsive (cannot force a reboot by holding the power button). Once it goes black if I connect it to a charger I get no LED indicating charge level.
If I try to boot into recovery I see the blue text and then it goes black.
If I try to boot into download mode I can get to the triangle screen if I am fast and then it goes black.
If I have a data USB cable connected and I connect the battery the phone does nothing, and will not respond to the power button, again no LED light indicating charge level.
If I have a charge only cable (wall outlet) connected and I connect the battery I see the battery charge icon for about 1 second and then the screen goes black. and the phone will not respond to any buttons.
I have duplicated all these things with 2 batteries both actual Samsung batteries, neither of the batteries is bubbled out at all.
I have tried leaving the battery out for several hours, but this did not help.
I have data on this phone that was not backed up so any suggestions I will try.
Thanks
Click to expand...
Click to collapse
This blows, I just had the Same Exact thing happen last night, word for word.
Although I'm on a stock Rom that's rooted.
Phone was in my pocket and it vibrated as it restarted on its own. Pulled it out of my pocket, waited for it to fully start up, then I could use it.
However, it rebooted 2 minutes later and has Never come back yet.
I wish there was some sure fire way to verify if its the screen that went bad or the logic board. The mere fact the screen shows the Galaxy S4 logo, or Download Mode for a few seconds before shutting off seems weird if the screen was in fact bad.... =(

jamesvtw said:
This blows, I just had the Same Exact thing happen last night, word for word.
Although I'm on a stock Rom that's rooted.
Phone was in my pocket and it vibrated as it restarted on its own. Pulled it out of my pocket, waited for it to fully start up, then I could use it.
However, it rebooted 2 minutes later and has Never come back yet.
I wish there was some sure fire way to verify if its the screen that went bad or the logic board. The mere fact the screen shows the Galaxy S4 logo, or Download Mode for a few seconds before shutting off seems weird if the screen was in fact bad.... =(
Click to expand...
Click to collapse
Check your power button, it could be stuck.

serio22 said:
Check your power button, it could be stuck.
Click to expand...
Click to collapse
You were correct! Had to mess with that button a bit to get to work properly, but its still an issue. One to many power button presses and the issue returns.
I have tested the phone without the exterior power button only using the logic board button and it did that same thing. Am I correct to assume that the fault is the actual button on the logic board? So new logic board to fix this? =(

Why so many presses of the power button?
Pp.