Develop Bugs

Lock screen gone

Usually after pressing the power button the pink lock screen from tmobile would show up. But today after pressing the button to unlock the phone theres no lock screen, it just goes straight to the homescreeen. I tried putting a password and it still doesnt bring up the lock screen. Has this happened to anyone else?
Sent from my SGH-T989 using XDA App

This is still an issue after a restart?

that would have been normal on CM7 if you disabled lock screen
but on TW... it's rather unusual, specially when we still have no root
can you try installing super user meanwhile you are at it?

mziol said:
This is still an issue after a restart?
Click to expand...
Click to collapse
Yea, i even took out the battery
Sent from my SGH-T989 using XDA App

Also, theres another problem. When I hold the power button the phone shuts off automatically instead of the menu asking you want to turn of the phone.
Sent from my SGH-T989 using XDA App

This definitely sounds like a faulty phone, I would return it. These options are normally present in a CM7 build like allgamer said.

I don't think that it is a faulty phone. Watch the review by Mobile Syrup and the lock screen on their phone is gone to.

mine is doing the same no lock screen and phone shuts off as soon as I hold the power button
Edit: just tried setting a lock screen with pin and nothing still hmmm
Sent from my SGH-T989 using XDA Premium App

kkg720 said:
I don't think that it is a faulty phone. Watch the review by Mobile Syrup and the lock screen on their phone is gone to.
Click to expand...
Click to collapse
So weird. You could try contacting the guys over at Mobile Syrup that did the review.

So i just did a factory reset and everything is fine now.

No lock screen and when I click on power bottom it just shock down without the 3 choices (power off, airplane mode and silent)
pinadala gamit ang galaxy s2 (premium xda)

If and when I get this phone you'll have about 9 lockscreens to choose from and a variety of power options (as well as a ton of other mods and hacks).
Just click on a few of the links in my sig.

Yes I can't wait
Whitehawkx said:
If and when I get this phone you'll have about 9 lockscreens to choose from and a variety of power options (as well as a ton of other mods and hacks).
Just click on a few of the links in my sig.
Click to expand...
Click to collapse
Sent from my SGH-T989

how do you do a factory reset?
What will a factory reset erase? Will i have to root again?
This is my problem, I have been using my sim card for like 6 years now and today it just stopped working in my phone..
So I took it out and put it back in , still doesnt work, and right after that happend I realized that my lock screen had ceased functioning which i read is a known issue.
So i lost all my contacts, i will go have to get a new sim tomorrow, still don't know if i should trade the phone is for a new one.

this problem had something to do with the *#0*# command, and and testing the camera while in that menu. i just reflashed the deodexed rom and it was fine.

I had this problem too. I had to do a factory reset to fix the problem.
Here's another thread discussing a potential cause of the issue: http://forum.xda-developers.com/showpost.php?p=18702063&postcount=12

There are programs out there to use until then. Right now I'm using Quick Boot and it seems to do the trick just fine.

Whitehawkx said:
If and when I get this phone you'll have about 9 lockscreens to choose from and a variety of power options (as well as a ton of other mods and hacks).
Just click on a few of the links in my sig.
Click to expand...
Click to collapse
And you should have got the phone on release day lol bring on the hacks
Sent from my SGH-T989 using Tapatalk

I'm rooted and used Titanium Backup, and a few other "safe" apps. Then suddenly my screen lock dissapeared. Battery pulls would not restore it and neither would any settings fiddling. When I held the power button down two seconds, it would shut the phone off instead of the usual popup that gives you the option to power down.
The only way I was able to restore it was reset the phone to factory settings. Then I restored via a CW backup (wow CW is awesome)
Anyway is this a common thing? I can't imagine this happening to an iPhone. What could cause this--do I have to erase my phone next time this happens? What a PITA!!!

Did you try the numeric combo which gets you into the phone diagnostics? If so we discovered that the megacam test hoses the lockscreen for some reason.
Using tapatalk on my Galaxy 2 to post this!

Sensitive power button

My samsung galaxy s2 has sensitive power button for some reason. I'm not sure if its the roms i have been flashing. But im on IML74K_Ics_Perfection_UCLD2 and if the slightest touch on the power button turn on my phone when it is off. Or it can turn it when the phone is locked. But i can even press it all the way down for even a split second without it rebooting and going into a bootloop and taking me many tries to actually boot up. Is this a hardware problem with my phone should i restore my phone to stock and return back to tmobile or is this a ics problem with the roms?

NightCalyster said:
My samsung galaxy s2 has sensitive power button for some reason. I'm not sure if its the roms i have been flashing. But im on IML74K_Ics_Perfection_UCLD2 and if the slightest touch on the power button turn on my phone when it is off. Or it can turn it when the phone is locked. But i can even press it all the way down for even a split second without it rebooting and going into a bootloop and taking me many tries to actually boot up. Is this a hardware problem with my phone should i restore my phone to stock and return back to tmobile or is this a ics problem with the roms?
Click to expand...
Click to collapse
Have you tried using any different roms? Is the issue still present? I haven't had or read about this issue before, and I've tried my fair share of roms.

I have tried the darkside roms but im starting to think its the phone and i think is should get it replaced then.

Yeah it shouldn't be so sensative.
Sent from my SGH-T989 using xda premium

i feel your pain
NightCalyster said:
My samsung galaxy s2 has sensitive power button for some reason. I'm not sure if its the roms i have been flashing. But im on IML74K_Ics_Perfection_UCLD2 and if the slightest touch on the power button turn on my phone when it is off. Or it can turn it when the phone is locked. But i can even press it all the way down for even a split second without it rebooting and going into a bootloop and taking me many tries to actually boot up. Is this a hardware problem with my phone should i restore my phone to stock and return back to tmobile or is this a ics problem with the roms?
Click to expand...
Click to collapse
i just started experiencing this last night. RIGHT after getting my battery replaced after two weeks of dealing with that problem and finally realizing it was my battery and not my phone. then i tried to take a screenshot of my new battery stats (without all of the huge sudden depletions) and my phone reset as if i held the power button down for 5 seconds. i read about a woman in india getting her button repaired for 550 rupees ($10), but i'm wondering if i should just get a whole new unit and be done with it. the problem with that is dealing with setting up all my apps over again. i have titanium backup (root version) but the last time i got a new phone it didn't put all my apps back on my phone. maybe i did something wrong. i'll email them for detailed instructions and see if it's better to get the button or the phone replaced.

Definitely the power button! After I hardbricked and revived it, my phone had an internal short, which made my phone constantly power off my phone, restart my phone over and over, etc. Josh at mobiletechvideos had to try and work around. He disabled my power button and remapped the wake buttons. So now I wake this phone via the volume rockers on roms that support that
I digress. If you can't send it to T-Mobile to get repaired, give mobile tech videos a shot. Just 35$ and they're super swift
Sent from my SGH-T989 using xda premium

I wonder what's actually causing this power button thing??
I was literally just browsing email, clicking around a little fast, back to home screen and FLASH!!! my camera flashes and all this same $hit starts happening...boot loop, sensitive button, booting out of recovery mode even. I just doesn't add up to sudden button failure...does it??? Why would the camera just flash out of nowhere? Some of the boot loops would also get interrupted and start over. Recovery mode is also kind of screwy. I tried to restore to a backup of Beastmade rom and it just reflashed Sith, the same rom I've been on!! And all my other backups/nandroids are missing. Something is fishy here.
I did recently go to TWRP and have been on the Sith Rom (clones & drones).

Yep its the power button ! I had this problem a month ago , but for me it completely went away .. maybe something was just stuck in between and the constant pressing of the button loosened whatever it was
Sent from my SAMSUNG-SGH-T989 using Tapatalk 2

agentg1001 said:
Yep its the power button ! I had this problem a month ago , but for me it completely went away .. maybe something was just stuck in between and the constant pressing of the button loosened whatever it was
Sent from my SAMSUNG-SGH-T989 using Tapatalk 2
Click to expand...
Click to collapse
Cool. What did you do?? Warranty? I do still have until Oct 25th for my warranty.

agentg1001 said:
Yep its the power button ! I had this problem a month ago , but for me it completely went away .. maybe something was just stuck in between and the constant pressing of the button loosened whatever it was
Sent from my SAMSUNG-SGH-T989 using Tapatalk 2
Click to expand...
Click to collapse
Same happened to me. Was sensitive for about 4 days then started to work properly again.. Thought I was the only one lol
Sent from my SGH-T989

The thing that has me curious is how mine started acting up. I wasn't even touching the power button. I was just clicking around gmail, went to home screen, the camera flashed and it started boot looping. It would sort of zap out in the middle of a reboot like there was a power issue and lot of other stuff was messed up including TWRP recovery! This tells me there is something else going on...more ROM related. Seems like all this started happening when these ICS ROMS dropped...none of them are as stable as Juggernaut, Paradox, etc...NONE of them. My power button does indeed seem defective, but it almost seems like it was a bi product of something else.

escrowdog said:
The thing that has me curious is how mine started acting up. I wasn't even touching the power button. I was just clicking around gmail, went to home screen, the camera flashed and it started boot looping. It would sort of zap out in the middle of a reboot like there was a power issue and lot of other stuff was messed up including TWRP recovery! This tells me there is something else going on...more ROM related. Seems like all this started happening when these ICS ROMS dropped...none of them are as stable as Juggernaut, Paradox, etc...NONE of them. My power button does indeed seem defective, but it almost seems like it was a bi product of something else.
Click to expand...
Click to collapse
ROM related. No. Its a faulty power button. Been many threads describing your situation. Ends up being a faulty power button. Mobiletech offers a power button service. Its reasonably priced.
Sent from my SGH-T989 using xda premium

Sent mine for repair of power button. Waiting for it to come back. I bricked it after I contacted them trying to restore to factory and they replaced the PBA (motherboard) as well.
Sent from my SGH-T959 using xda premium

LoopDoGG79 said:
ROM related. No. Its a faulty power button. Been many threads describing your situation. Ends up being a faulty power button. Mobiletech offers a power button service. Its reasonably priced.
Sent from my SGH-T989 using xda premium
Click to expand...
Click to collapse
I was lucky enough to get flashed back to stock and have a warranty replacement on the way. Still has me wondering if something else wasn't up. Just seems like all the ICS based ROMs have been very buggy compared to the very stable Gingerbread builds. I sure enjoyed my rooted phone but this has been a PITA losing my device...it's my work and life! I haven't been stock in so long it will be interesting to click around a bit and see if I'm not better off stock. I'm due for an upgrade next month so I may well be on to an S3 or whatever else is out.

Just got my replacement this afternoon!!! Man...what a couple of days it's been without it! Holy crap, I had no idea.
Anyway the new phone shipped with 4.04. So that's cool. So far THIS is the most stable ICS rom I've used. :silly:

I know this post is ancient, but ....
Two years later, I'm experiencing this power button problem and I'm on KitKat - SlimKat 7.0 stable.

danishdish said:
Two years later, I'm experiencing this power button problem and I'm on KitKat - SlimKat 7.0 stable.
Click to expand...
Click to collapse
This service worked great for me, if u hurry they are also on sale
http://m.ebay.com/itm?itemId=221351645699

Emmanuel U said:
This service worked great for me, if u hurry they are also on sale
http://m.ebay.com/itm?itemId=221351645699
Click to expand...
Click to collapse
Thank you.
Sent from my SAMSUNG-SGH-T989 using Tapatalk

Dah... just went locally to have it serviced... got screwed at 100$...
Should have searched online before...

I had the SAME EXACT issue. I had to literally remove my power button because my device would reboot every few minutes. I use the volume keys to wake the device and sleep shortcut in the notification bar to sleep. If my device turns off, I have to turn it on with a USB, which is a major hassle but I've grown used to it.

Think I bricked my phone...

As soon as I put the battery in my phone, it till vibrate, and vibrate, and vibrate, and vibrate, and keep doing this non stop with a black screen. i haven't even been able to get into download mode, as soon as i put my battery in it just start booting immediately.
what can i do? no idea where this came from ;(

Let it sit for an hour on the charge and don't touch it and them come back tell me what happen bye
Sent from my SGH-T989 using xda app-developers app

don728871 said:
Let it sit for an hour on the charge and don't touch it and them come back tell me what happen bye
Sent from my SGH-T989 using xda app-developers app
Click to expand...
Click to collapse
Samsung logo came up, then for 2 seconds the AOKP boot animation came up, and now it just keeps doing what it was doing in the first place. black screen, vibrate every few seconds.

Can u go to cwm recovery
Sent from my SGH-T989 using xda app-developers app
---------- Post added at 05:02 AM ---------- Previous post was at 05:02 AM ----------
Take out the battery and than put it back in hold volume up and down and see if u can go to the cwm
Sent from my SGH-T989 using xda app-developers app

darkness122 said:
As soon as I put the battery in my phone, it till vibrate, and vibrate, and vibrate, and vibrate, and keep doing this non stop with a black screen. i haven't even been able to get into download mode, as soon as i put my battery in it just start booting immediately.
what can i do? no idea where this came from ;(
Click to expand...
Click to collapse
I had this happen to me too. I thought it was a software problem as well but its the power button. What I did was Odin back to stock and unrooted it. Went to T-Mobile since problem was still happening and they ordered me a new s2 and yeah

don728871 said:
Can u go to cwm recovery
Sent from my SGH-T989 using xda app-developers app
Click to expand...
Click to collapse
cant man i hold down the vol up down and power button, its like im not even holding them down, it just keeps vibrating, pause, vibrate, pause, vibrate, pause.

Calz- said:
I had this happen to me too. I thought it was a software problem as well but its the power button. What I did was Odin back to stock and unrooted it. Went to T-Mobile since problem was still happening and they ordered me a new s2 and yeah
Click to expand...
Click to collapse
i cant even get into download mode tho, the second i put the battery in my phone it just starts trying to boot

darkness122 said:
i cant even get into download mode tho, the second i put the battery in my phone it just starts trying to boot
Click to expand...
Click to collapse
Try to beat it, its frustrating. You have to be quick. I was doing that fast. Once you go into cwm recovery use the bottom buttons of our phone to navigate thru it.

Calz- said:
Try to beat it, its frustrating. You have to be quick. I was doing that fast. Once you go into cwm recovery use the bottom buttons of our phone to navigate thru it.
Click to expand...
Click to collapse
i made in to the warning screen, but then it restarts and does the vibrate, pause, vibrate pause, with a black sceen
fuuuark even in download mode, i press the vol up key to get into into it fast as hell, but it goes black and restarts and does the vibrate pause vibrate pause..

darkness122 said:
i made in to the warning screen, but then it restarts and does the vibrate, pause, vibrate pause, with a black sceen
fuuuark even in download mode, i press the vol up key to get into into it fast as hell, but it goes black and restarts and does the vibrate pause vibrate pause..
Click to expand...
Click to collapse
Dam I would try to push and hold down the power button while doing all that. You know to counter it. Idk I'm just guessing now. Sorry I couldn't help much.
Sent from my SAMSUNG-SGH-T989

Calz- said:
Dam I would try to push and hold down the power button while doing all that. You know to counter it. Idk I'm just guessing now. Sorry I couldn't help much.
Sent from my SAMSUNG-SGH-T989
Click to expand...
Click to collapse
its fine man, i think im royally ****ed. not sure what to do at this point. luckily i like literally backed up my apps/texts the night before this stuff happened.
i REALLY hope the boot screen animation doesn't pop up when i bring it into t-Mobile, im afraid they wouldn't replace my phone in that case.

Get a jig stick it in the phone, then insert the battery... Should get you in download mode.
Sent from my SGH-I897 using Tapatalk 2

spagman72 said:
Get a jig stick it in the phone, then insert the battery... Should get you in download mode.
Sent from my SGH-I897 using Tapatalk 2
Click to expand...
Click to collapse
where do i get a jig from?

try this it will boot your phone into recovery automatically as long as your computer recognizes your phone. just open up the application bat file on computer within 2-3 secs it boots you straight to recovery. good luck.

Dude it sounds like your power button could be stuck the way your making it sound

darkness122 said:
where do i get a jig from?
Click to expand...
Click to collapse
Look on eBay you can get them for pocket change there
Sent from my GT-I9100 using xda premium

casonswag said:
Dude it sounds like your power button could be stuck the way your making it sound
Click to expand...
Click to collapse
i think this must be it... cus i managed to get it to boot, and everything loaded fine. but as soon as it got past the boot animation, the toggle that has power off, screenshot, etc (the thing that pops up when you hold the power button on) comes up immediatly.
how can i fix this bs?

Either you have a defective button or you need to clean it because it might be getting stuck for some apparent reason .

ok so i for sure have a stuck power button... im gonna go to t-Mobile tomorrow to try to get this sorted out.
thing is, im on the latest AOKP nightly, are they gonna **** me over on my insurance policy (the like 3-4 bucks you pay a month to tmobile) cus I rooted my phone?

darkness122 said:
ok so i for sure have a stuck power button... im gonna go to t-Mobile tomorrow to try to get this sorted out.
thing is, im on the latest AOKP nightly, are they gonna **** me over on my insurance policy (the like 3-4 bucks you pay a month to tmobile) cus I rooted my phone?
Click to expand...
Click to collapse
Mostly likely yes if the tmobile knows its not stock. They could say it was your fault by saying you put a defective rom on your phone that's not factory. They try to get out of s**t all the time. But you could get lucky. But if I were you I would restore it to factory before I took it to the store. Just to be on the safe side.

[q] at&t s3 dead

I was rooted with CM10.1.0 and was casually using the phone until it randomly turned off. I turned it back on and the only thing that happened was the "Galaxy SIII" screen flashed and turned off again. I popped out the battery multiple times to be welcomed with the same problem again. I can't boot into Download or Recovery at all. Anyone know how to fix this? (btw im on AT&T SGH-i747)

Try another battery.
Sent from my SAMSUNG-SGH-I747

Sorry my friend!!!
Your mobile phone very very bad dead. Have to repair boot with Riff box...and Not your work
Sent from my GT-I9300 using xda premium

gholizadeh666 said:
Sorry my friend!!!
Your mobile phone very very bad dead. Have to repair boot with Riff box...and Not your work
Sent from my GT-I9300 using xda premium
Click to expand...
Click to collapse
Please don't provide false or miss leading information.
To OP. Fully charge your battery or use another one if its corrupt.
Try booting up into both recovery or download mode using the proper combination.
Use this guide to get your phone fully working again.
http://forum.xda-developers.com/showthread.php?p=42996302
In some instance (very rare) your phones hardware can malfunction, but seeing how it still boots up I doubt its that's.
Follow my guide and you should be fine.
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

Mr jayrokk
Mobile phone cant into download mode or recovery!!!
Sent from my GT-I9300 using xda premium

Not without a charged battery. That's why replacing it was the first suggestion.

gholizadeh666 said:
Mr jayrokk
Mobile phone cant into download mode or recovery!!!
Sent from my GT-I9300 using xda premium
Click to expand...
Click to collapse
But it boots up.
As long as a phone is able to boot up its fine.
Like I said please do a little more reading and research and don't spread false information.
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

What about with it plugged into the charger and try to get to download mode. I thought I bricked my s2, took the battery out but it stayed on. Thought it was possesd bit it was plugged in to USB.

Can't hurt to try.

Definitely recommend download mode with cable plugged in to computer. Are you sure recovery doesn't work while plugged in to power?
Sent from my SGH-I747 using Tapatalk 4 Beta

Carsus55 said:
Definitely recommend download mode with cable plugged in to computer. Are you sure recovery doesn't work while plugged in to power?
Sent from my SGH-I747 using Tapatalk 4 Beta
Click to expand...
Click to collapse
Yep. It just loops on the splash screen. I'll try charging it to full and repeating your solutions. (It died off at 80%, very strange). Thanks for your replies though!

Ok guys, seems that my issue isnt the phone being bricked. I left the battery out all night and popped it in the next morning. CM loaded just fine. However after about 10 seconds of it loading, the power menu flashed, i clicked cancel, and then it immediately shut down again, and the usual problem continued. Any thoughts? (btw the phone died at 80% battery the first shut down it had, right now it should have been nearly 100% after charging) Also, connecting it via USB doesn't help at all. Sometimes the blue recovery words flash when i try to boot into recovery, but nothing happens after that.

r8revealed said:
Ok guys, seems that my issue isnt the phone being bricked. I left the battery out all night and popped it in the next morning. CM loaded just fine. However after about 10 seconds of it loading, the power menu flashed, i clicked cancel, and then it immediately shut down again, and the usual problem continued. Any thoughts? (btw the phone died at 80% battery the first shut down it had, right now it should have been nearly 100% after charging) Also, connecting it via USB doesn't help at all. Sometimes the blue recovery words flash when i try to boot into recovery, but nothing happens after that.
Click to expand...
Click to collapse
It could be a bad battery. Might also be the battery contact points. Worse case is something is wrong with power channels on the Mobo. If it is the last then you will have to warranty the phone if you're still covered. I would borrow a battery first to rule out whether or not it is the battery itself.
Sent from my SAMSUNG-SGH-I747

Also make sure the power button isn't stuck!
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

jayRokk said:
Also make sure the power button isn't stuck!
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2
Click to expand...
Click to collapse
The power button seems to operate normally, but that could also be one of the things that are causing problems. Once i find someone nearby with an S3 battery i'll see if it's actually a battery problem (most likely the case).

I'd thought i'd mention this as well, whenever i pop in the battery, the phone vibrates and tries to turn on, but doesnt actually do it. Anyone have any ideas what could be causing this? power button maybe, but battery?

If the battery out all night boots past the splash screen maybe you could, if you haven't, leaving it out and first thing try download mode. I've been in bad spots but this pretty crappy. Probably to technical for me but Good luck. Let us know how you do if none of the posts help.

Found the problem. The power button is always acting as if it's being pushed down when it actually isnt. The phone starts up perfectly when i hold the phone horizontally with the power button facing down. then when i put it back into portrait mode, the power menu flashes, and its turns off. any knowledge on how to fix this then?

r8revealed said:
Found the problem. The power button is always acting as if it's being pushed down when it actually isnt. The phone starts up perfectly when i hold the phone horizontally with the power button facing down. then when i put it back into portrait mode, the power menu flashes, and its turns off. any knowledge on how to fix this then?
Click to expand...
Click to collapse
Nice!!!
Um I'd say taking apart the phone or mailing back for warranty even try taking it to an att store.. Its hardware and not software so they should replace it
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

r8revealed said:
Found the problem. The power button is always acting as if it's being pushed down when it actually isnt. The phone starts up perfectly when i hold the phone horizontally with the power button facing down. then when i put it back into portrait mode, the power menu flashes, and its turns off. any knowledge on how to fix this then?
Click to expand...
Click to collapse
Warranty it. Mess witht power button some more. Sometimes it will get unstuck.

[Q] My TMO S3 (T-999) will not turn on.

I didn't have luck finding an answer to this on the forums so I figured I'd make a new post. I have been running a version (not sure which) of Liquid Smooth for a few months. Yesterday, I noticed my phone was on a boot loop. It would vibrate, show the Samsung Galaxy S3 screen and then turn off. I pulled the battery and memory card and tried again. It still wouldn't come on. I pulled the battery and then rebooted to recovery mode. I went there to wipe and reboot. When I tried to do that it said something like, "what you are looking for can't be found". I pulled the battery again but this time when I tried to turn it back on it did nothing. I have no vibrations, I have nothing on my screen. I'm not sure what could have happened because I haven't made a change to my phone for quite some time. Any ideas?

bralaheh said:
I didn't have luck finding an answer to this on the forums so I figured I'd make a new post. I have been running a version (not sure which) of Liquid Smooth for a few months. Yesterday, I noticed my phone was on a boot loop. It would vibrate, show the Samsung Galaxy S3 screen and then turn off. I pulled the battery and memory card and tried again. It still wouldn't come on. I pulled the battery and then rebooted to recovery mode. I went there to wipe and reboot. When I tried to do that it said something like, "what you are looking for can't be found". I pulled the battery again but this time when I tried to turn it back on it did nothing. I have no vibrations, I have nothing on my screen. I'm not sure what could have happened because I haven't made a change to my phone for quite some time. Any ideas?
Click to expand...
Click to collapse
Battery is going bad or the hardware is going bad.
What recovery and version?

Have you tried booting into recovery or download mode?
Take battery out and put back in:
Recovery: volume up, home button, power
Download mode: volume down, home button and power
Sent from my SGH-T999 using XDA Premium 4 mobile app

Aerowinder said:
Battery is going bad or the hardware is going bad.
What recovery and version?
Click to expand...
Click to collapse
I'm not able to get the phone to come on so I don't know the versions of anything I've used. All I know is my phone is the T-999. Sorry, I know that's probably no help at all.

You don't have a spare battery do you? If not, you should see if you can find someone you know that has one. It could be that you battery just went bad.
Sent from my SGH-T999 using XDA Premium 4 mobile app

Da Kine said:
Have you tried booting into recovery or download mode?
Take battery out and put back in:
Recovery: volume up, home button, power
Download mode: volume down, home button and power
Sent from my SGH-T999 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
I tried all of this but did not have any luck. The phone doesn't do anything. It doesn't make any sense how it can just stop working out of nowhere like this. Wouldn't it mess up immediately after I rooted/added a custom ROM if I did something wrong rather than a few months later? I'm afraid that the phone may be done for. : (

bralaheh said:
I tried all of this but did not have any luck. The phone doesn't do anything. It doesn't make any sense how it can just stop working out of nowhere like this. Wouldn't it mess up immediately after I rooted/added a custom ROM if I did something wrong rather than a few months later? I'm afraid that the phone may be done for. : (
Click to expand...
Click to collapse
I hate to say it, but usually when something like this happens it's most likely to be hardware related. If you don't have access to a spare, go to a T-Mobile store and ask to borrow a battery to see if it'll power up with a known good one. Batteries usually don't just die like that, but it can happen.
So you don't get a short vibe or anything out of it? What about when you hold the power button for about 10seconds? If you remove the battery and plug it in, do you get an led lit up? How about with the battery in?
If the battery turns out to be good, you could attempt the debrick method by KAsp3rd stickies in development. I don't see why it would be a brick, but at this point I'd try anything available just to be positive.
If you have insurance on it, it may be time to consider using it.
Sorry to hear this is happening to you man. These S3's are starting to get a little old though, and no matter how careful we are, they do suffer more abuse than any other electronics we may use. I'm seeing more and more posts like yours recently, I'm sorry to say.
Keep us updated on it, and good luck with it!
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