Develop Bugs

Rooting the evo

hey guys, my girlfriend just bought a new evo that has the gingerbread ota already installed. i want to root it and install a gingerbread rom (synergy to be specific). i understand that i need to revert back to froyo first, and then i plan on using the auto root from here--> http://forum.xda-developers.com/showthread.php?t=838448. my question is whats the best way to revert to an older ruu? i did it on my thunderbolt by just flashing in cwm but i was already rooted. ive read something about using fastboot but ive never done anything with that on my thunderbolt, so could someone point me in the right direction?
edit: did some more research, turns out the new hboot wont allow you to downgrade an ruu, and there's currently no way to install an older hboot. looks like im stuck waiting( well actually she is, i can still enjoy my root )

turn off phone completely (pull battery) press power button and volume down at same time. Thats brings you to Hboot. if there is S-on at the top of the screen somewhere just reboot and wait until someone comes up with a definate method of rooting the 2.3.3 otherwise you might look like a fool by breaking ur gf new phone.

Michaud85 said:
turn off phone completely (pull battery) press power button and volume down at same time. Thats brings you to Hboot. if there is S-on at the top of the screen somewhere just reboot and wait until someone comes up with a definate method of rooting the 2.3.3 otherwise you might look like a fool by breaking ur gf new phone.
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Click to collapse
haha my thoughts exactly. and unless sprint ships there phones pre-rooted im gonna assume its still s-on since i havent touched it yet lol

haha yeah i just got my phone today and its so stupid how they force their OS on you. You cant even shut the phone off without pulling the battery (the power off in the menu just puts it to sleep so it boots up quickly when u power on). Hopefully someone can save us from this non rooted nightmare soon.

Michaud85 said:
wait until someone comes up with a definate method of rooting the 2.3.3 otherwise you might look like a fool by breaking ur gf new phone.
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Click to collapse
I haven't laughed this hard in a long time, thanks!

Another way to get s-off is to put the phone on the stage at a strip club. Them exotics dancers can help you get it off...lmao

Michaud85 said:
haha yeah i just got my phone today and its so stupid how they force their OS on you. You cant even shut the phone off without pulling the battery (the power off in the menu just puts it to sleep so it boots up quickly when u power on). Hopefully someone can save us from this non rooted nightmare soon.
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Click to collapse
It sounds like you still have fast boot on. Just go into settings and applications the unchecked fastboot. Then it'll turn all the way off.

firket2000 said:
It sounds like you still have fast boot on. Just go into settings and applications the unchecked fastboot. Then it'll turn all the way off.
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Click to collapse
That will be settings/power settings. buddy

evolishesh said:
That will be settings/power settings. buddy
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Click to collapse
Nope just checked its applications at least on so keep nonrooted evo

firket2000 said:
Nope just checked its applications at least on so keep nonrooted evo
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Click to collapse
yup on mine to
Sent from my PC36100 using XDA Premium App

Bricked?! [UPDATED]

I tried searching, but I couldn't find anyone with the same problem as me and I don't know what to do.. I'm kind of freaking out. The last update I installed was darkside beta02, and I was really liking it minus a few connection and call issues. Anyways, I was in my car earlier today and picked out a song on play music. The phone instantly turned off, and it appeared that it was about to reboot so I didn't think much about it. Nope. When it starts to turn on it rarely makes it past the samsung screens that pops up right when you start the phone, but it has made it as far as the swirling samsung s splash screen thing. It just acts like it is rebooting from that part and it's like a never ending cycle until I remove the battery. I can get the phone into download mode by plugging it into the computer, but it only stays on for a few seconds and then goes back to it's never ending reboot. Any help would be GREATLY appreciated, I really can't afford to have bricked this phone
UPDATE: I managed to restore the phone to stock, and I proceeded to root and put darkside beta 7.1 on it. Everything was running fine... For a few hours. It began to do the same rebooting described above, but now instead of looking like it's going to boot normally it goes straight to a screen that says "Firmware encountered an issue. Please sleect recovery mode in Kies and try again." with the phone model, "Custom Binary Download: No" and "Current Binary: Samsung Official" up top. It only stays at this screen for a few seconds before it starts back into it endless half-reboot. Any suggestions? This is frustrating me A LOT.

uh, have you tried charging it? Honestly at first blush it sounds like a dead battery.

blackangst said:
uh, have you tried charging it? Honestly at first blush it sounds like a dead battery.
Click to expand...
Click to collapse
Yes I've charged it overnight... And it does the same thing when it's on the charger without the battery in.

Can you get into recovery? My wife's phone did something similar out of no where. I had to restore a nandroid.
Sent from my SGH-T989 using XDA

bobby3306 said:
Can you get into recovery? My wife's phone did something similar out of no where. I had to restore a nandroid.
Sent from my SGH-T989 using XDA
Click to expand...
Click to collapse
No luck with recovery Forgot to include that in the original post.

The K-Zoo Kid said:
No luck with recovery Forgot to include that in the original post.
Click to expand...
Click to collapse
So did you take the battery out put it in and then flash into recovery using touch method?
Sent from my SGH-T989 using xda premium

suaverc118 said:
So did you take the battery out put it in and then flash into recovery using touch method?
Sent from my SGH-T989 using xda premium
Click to expand...
Click to collapse
What exactly is the touch method?

Go to recovery and clear cache and restore factory settings
Sent from my SGH-I777 using XDA

pcamlin said:
Go to recovery and clear cache and restore factory settings
Sent from my SGH-I777 using XDA
Click to expand...
Click to collapse
He said he can't get into recovery.
Do you have insurance? Might want to take it to a store.
Sent from my SGH-T989 using XDA

Oops sorry about that. I would reset your flash counts and try and take it back to the store if possible... seems like your only option if you can't get into recovery. Or reflash stock. Then root again then clear cache and then factory defaults
If you can get it to stay on long enough-- in Odin
Sent from my SGH-I777 using XDA

blackangst said:
He said he can't get into recovery.
Do you have insurance? Might want to take it to a store.
Sent from my SGH-T989 using XDA
Click to expand...
Click to collapse
Wouldn't they just tell me I'm out of luck because my phone is clearly rooted and whatnot?

pcamlin said:
Oops sorry about that. I would reset your flash counts and try and take it back to the store if possible... seems like your only option if you can't get into recovery. Or reflash stock. Then root again then clear cache and then factory defaults
Sent from my SGH-I777 using XDA
Click to expand...
Click to collapse
The problem is that I can't do anything but watch the phone start up for about 10 seconds, or be in download mode for about 10 seconds. Not much time to do anything.

That is why you reset flash counts before you go in... Google is your friend and try to unroot somehow--
You are quick! Lol I edited my post just after you replied to it
Sent from my SGH-I777 using XDA

The K-Zoo Kid said:
I tried searching, but I couldn't find anyone with the same problem as me and I don't know what to do.. I'm kind of freaking out. The last update I installed was darkside beta02, and I was really liking it minus a few connection and call issues. Anyways, I was in my car earlier today and picked out a song on play music. The phone instantly turned off, and it appeared that it was about to reboot so I didn't think much about it. Nope. When it starts to turn on it rarely makes it past the samsung screens that pops up right when you start the phone, but it has made it as far as the swirling samsung s splash screen thing. It just acts like it is rebooting from that part and it's like a never ending cycle until I remove the battery. I can get the phone into download mode by plugging it into the computer, but it only stays on for a few seconds and then goes back to it's never ending reboot. Any help would be GREATLY appreciated, I really can't afford to have bricked this phone
Click to expand...
Click to collapse
I had this exact thing happen to me today!! For the last week or so, I would get a random reboot up to four times a day. This started happening after I flashed Whitehawkx UVLDE zip. What I did was left the battery in the phone let the constant reboot run until the battery died. Then I would try to get into download mode, but then it would reboot before Odin recognized it. I left the usb plug in the phone and took the battery out, the phone would still do the rebooting vibration. I just stayed with trying to get the phone to stay on long enough to get recognized by Odin. Leave the drained battery out of the phone for a while (your choice of how long, I left it for about forty minutes) and replace it, hopefully it stays on long enough to get recognized. Finally it stayed on long enough and I re-flashed ULKL1. Now I'm back to running TDJ's DARKSIDE. EVOLUTION.2 [BETA 3] and I haven't had any reboots where as before it would reboot within fifteen minutes.

thedarkness37 said:
I had this exact thing happen to me today!! For the last week or so, I would get a random reboot up to four times a day. This started happening after I flashed Whitehawkx UVLDE zip. What I did was left the battery in the phone let the constant reboot run until the battery died. Then I would try to get into download mode, but then it would reboot before Odin recognized it. I left the usb plug in the phone and took the battery out, the phone would still do the rebooting vibration. I just stayed with trying to get the phone to stay on long enough to get recognized by Odin. Leave the drained battery out of the phone for a while (your choice of how long, I left it for about forty minutes) and replace it, hopefully it stays on long enough to get recognized. Finally it stayed on long enough and I re-flashed ULKL1. Now I'm back to running TDJ's DARKSIDE. EVOLUTION.2 [BETA 3] and I haven't had any reboots where as before it would reboot within fifteen minutes.
Click to expand...
Click to collapse
Thank you! And when you say replace the battery, do you mean get a whole new one or put in the dead one?

Just put the dead one in.

My advice is similar to his, but without killing the battery. Open odin on your computer, and input what your going to input into pda and have everything ready to go, so all you have to do is press start and its off. Now, start with the phone turned off, hold both volume buttons and plug in the usb cable from the computer quickly! Have your hand ready on the mouse and ready to click start. Soon as odin recognizes click that start button! Hopefully everything happened so quick, that the phone will take the flash. However, if it doesn't, then I'm afraid the only answer you would have left is to use a jig to reset the counter and take it in to be replaced.

OGWisdom said:
My advice is similar to his, but without killing the battery. Open odin on your computer, and input what your going to input into pda and have everything ready to go, so all you have to do is press start and its off. Now, start with the phone turned off, hold both volume buttons and plug in the usb cable from the computer quickly! Have your hand ready on the mouse and ready to click start. Soon as odin recognizes click that start button! Hopefully everything happened so quick, that the phone will take the flash. However, if it doesn't, then I'm afraid the only answer you would have left is to use a jig to reset the counter and take it in to be replaced.
Click to expand...
Click to collapse
I've tried this, but I didn't even have time to get it started. It's beginning to look like I'm out of luck

The K-Zoo Kid said:
I've tried this, but I didn't even have time to get it started. It's beginning to look like I'm out of luck
Click to expand...
Click to collapse
If you cant get it to Odin, and if you cant get it to download mode, and if you cant get it to turn on, neither can TMo. Take it in.

blackangst said:
If you cant get it to Odin, and if you cant get it to download mode, and if you cant get it to turn on, neither can TMo. Take it in.
Click to expand...
Click to collapse
The thing is, it starts to start up, and you can clearly see that it's rooted. I feel like they won't honor my warranty.

[Q] Rooted phone and now wont turn on

I recently Rooted my sealed samsung galaxy s3 without having a clue what i'm doing i downloaded this program called snapdragon to root it along with ODIN. The phone rooted fine everything was working okay, I even downloaded an app to see if the root was successful and indeed it was. I shut the phone down wake up in the morning to turn it back on and I get zero response. Any help/direction would be greatly appreciated.
Thanks!

Might seem obvious, but have you tried leaving it plugged in for ten-fifteen minutes?

joshnichols189 said:
Might seem obvious, but have you tried leaving it plugged in for ten-fifteen minutes?
Click to expand...
Click to collapse
Yes of course I've tried leaving it plugged in for several hours and the night before the phone was at 100% charge so I doubt battery is the issue.
Tks though

Did you try booting into recovery?
Sent from my SGH-T999 using xda app-developers app

Ummm seems like u can fix it.... go bak to stock using odin as well and go back to stock and i believe cwm is going to be gone so as your root access so re-do it but this time guide yourself through a turorial(a.k.a google) and since you have to clue i think the best choice for you is to find a video tutorial in case your doubting or getting confused with the steps or sometimes to see what you did wrong that caused the phone to misbehave...
Sent from my SGH-T999 using xda app-developers app

*sigh*
This is why I hate one-click-root kits, you get people doing things to their phones they don't understand, wreck it and come here saying "help, I don't know what do do!" Something like this you really should at least understand the basics. I hope this gets you more involved in researching what's actually happening. It's important to know what's happening to your device as well as why, that way if something goes badly you'll have an idea of how to get out of it.
Sorry, enough lecturing, let's see if we can get something going here. Give a bit more detail about what happens. You're phone is shut down, right? You hit the power button and no response, like the battery is actually out of the phone, or does it turn on and give you a blank screen? If it was a brick, I'd think you'd at least see the boot screen before everything goes wrong.
Ok, I'm going to go ahead and assume you've removed the battery. If you haven't, do so now.
If it still won't turn on, try actually holding the power button down for 30-60 seconds. I had a scary moment with my phone yesterday, rebooted it running Wicked v5 on Trinity and the screen just died. I've been running that rom for a week with just a couple of issues here and there, nothing out of the ordinary. Pulled the battery and tried again, nothing. After holding the power button down for a bit I felt a quick vibrate, then the boot logo came up. No idea why, I'm going to have to look into it.
Beyond that, I'm brand new to this phone and Sammy's Android devices so I'm still learning myself. HTC phones I could help out more with, but I'm still a bit clueless with this thing.

kitsunisan said:
*sigh*
This is why I hate one-click-root kits, you get people doing things to their phones they don't understand, wreck it and come here saying "help, I don't know what do do!" Something like this you really should at least understand the basics. I hope this gets you more involved in researching what's actually happening. It's important to know what's happening to your device as well as why, that way if something goes badly you'll have an idea of how to get out of it.
Sorry, enough lecturing, let's see if we can get something going here. Give a bit more detail about what happens. You're phone is shut down, right? You hit the power button and no response, like the battery is actually out of the phone, or does it turn on and give you a blank screen? If it was a brick, I'd think you'd at least see the boot screen before everything goes wrong.
Ok, I'm going to go ahead and assume you've removed the battery. If you haven't, do so now.
If it still won't turn on, try actually holding the power button down for 30-60 seconds. I had a scary moment with my phone yesterday, rebooted it running Wicked v5 on Trinity and the screen just died. I've been running that rom for a week with just a couple of issues here and there, nothing out of the ordinary. Pulled the battery and tried again, nothing. After holding the power button down for a bit I felt a quick vibrate, then the boot logo came up. No idea why, I'm going to have to look into it.
Beyond that, I'm brand new to this phone and Sammy's Android devices so I'm still learning myself. HTC phones I could help out more with, but I'm still a bit clueless with this thing.
Click to expand...
Click to collapse
Yes I have taken out the battery replaced it several times. I hit the volume home and power button several times. When I do that I get a zero response nothing shows up I hear no sound its as if the phone is just completely dead. One thing I did realise is when I plug it into the computer and press the power button what would happen is it would connect and automatically disconnect

Can you get into Download mode? Volume down + Home + Power button?
Sent from my SGH-T999

Don't forget to let go of the power button when going into recovery.

Have you done what the other post said?
Hold power for about 10-30 seconds. Does it do anything? Do you feel a verrrry slight vibration?
When you plug it in without doing anything else does the computer see it in device manager? How about if you press power once? Or holding power down?
Does it register that its charging?
This may sound dumb but did you try powering up without the phone plugged into anything?
Sent from my SGH-T999 using xda app-developers app

DocHoliday77 said:
Have you done what the other post said?
Hold power for about 10-30 seconds. Does it do anything? Do you feel a verrrry slight vibration?
When you plug it in without doing anything else does the computer see it in device manager? How about if you press power once? Or holding power down?
Does it register that its charging?
This may sound dumb but did you try powering up without the phone plugged into anything?
Sent from my SGH-T999 using xda app-developers app
Click to expand...
Click to collapse
Come on guys I respect the fact that everyone here is out here to help but read my post I have done every way common sense possible I actually need some real advice maybe how to reset factory setting with a device or maybe download a program.
Any help would be useful.

cyklosporine said:
I recently Rooted my sealed samsung galaxy s3 without having a clue what i'm doing i downloaded this program called snapdragon to root it along with ODIN. The phone rooted fine everything was working okay, I even downloaded an app to see if the root was successful and indeed it was. I shut the phone down wake up in the morning to turn it back on and I get zero response. Any help/direction would be greatly appreciated.
Thanks!
Click to expand...
Click to collapse
cyklosporine said:
Come on guys I respect the fact that everyone here is out here to help but read my post I have done every way common sense possible I actually need some real advice maybe how to reset factory setting with a device or maybe download a program.
Any help would be useful.
Click to expand...
Click to collapse
Ummm. Sorry but maybe im missing something? Your first sentence in your op says you didnt have a clue what you were doing....
And where is it supposed to infer that you've done everything already?
Imo you have been getting 'real' advice but from what I see you haven't 'really' answered anyones suggestions.
No one can help you if you dont tell us what exactly you have tried and what what happened when you did.
For example in your only response you mentioned hitting the volume and home keys a bunch of times....what exactly do you mean by this? Did you hold them while trying to power up? Volume up or down? Did you release any of them during that process, and if so which and when?
Its kinda hard to help someone who doesn't have a clue what they are doing and only responds that hes done everything common sense dictates.
I seriously mean no offence but to me common sense would dictate that you not try rooting or anything if you know you dont know what you're doing.
It would also dictate that if you want further help with this you should go back and respond to what everyone suggested.
Like I said, im not trying to offend, just help.
Sent from my SGH-T999 using xda app-developers app

I am having the same issue
I just tried flashing Android Revolution to my phone. I went through the whole set up process. Went to reboot then it went blank. Nothing. I get nothing when I plug it in. The computer doesn't recognize any device attached to it. I've tried all the ideas listed here and I get nothing. It's as if the phone is completely dead. When I flashed the rom my battery was at 90%. I've used various roms on different phones and this was the first time I did it to my Galaxy s3 and this is the first time it's ever happened. Talk about frustrating.

Jtag
Sent from my SGH-T999 using xda premium

lokitsar said:
I just tried flashing Android Revolution to my phone. I went through the whole set up process. Went to reboot then it went blank. Nothing. I get nothing when I plug it in. The computer doesn't recognize any device attached to it. I've tried all the ideas listed here and I get nothing. It's as if the phone is completely dead. When I flashed the rom my battery was at 90%. I've used various roms on different phones and this was the first time I did it to my Galaxy s3 and this is the first time it's ever happened. Talk about frustrating.
Click to expand...
Click to collapse
If you can get to download mode by holding vol up home power. You then you can use this. http://forum.xda-developers.com/showthread.php?t=1771687
To get our phone back. I had the same problem after a bad flash. My phone wouldn't do anything. After I left it plugs in for an hour I was able to get into download mode ..hope you get urs back. If its what happened to me then u might find that you have no 4g anymore... If that's the case let me know and I'll tell u what I did to get it back.
Sent from my SGH-T999 using xda premium

cyklosporine said:
Come on guys I respect the fact that everyone here is out here to help but read my post I have done every way common sense possible I actually need some real advice maybe how to reset factory setting with a device or maybe download a program.
Any help would be useful.
Click to expand...
Click to collapse
Yeah, good luck getting ANY further help with that attitude bro!!!
Sent from my SGH-T999 using xda premium

I got same problem with my friend's phone
He rooted it by some oneclick root pc program (I rooted this way too, and no problem will come) and flashes Rom with some android apk. ... After questioning him, I found out he DO NOT unlock bootloader.. .. I never seen phone in this status before... another strange thing is that when is phone in charger, battery and phone isn't heating up.. It's cold like ice... This is strange for me..I try 5 android devices and every is heating when it charging up.. (sorry for my bad English) Thank you and maybe someone comming with answers Phone doesn't react, no display brightness show up, no vibrating, no response

I have rooted my phone samsung galaxy grand 2 via odin after that flash the rom cm 11 and reboot my phone it got stuck into boot loop. Then i have done 1 stupidity again i push twrp file in that now m not able to go in recovery mode what should l i do now.

Wrong forum, look here: http://forum.xda-developers.com/galaxy-grand-2
I don't know anything about the phone but you could try looking for the current ROM on the phone at sammobile.com and then re-flash it via Odin.

i unluged the device before dhe odin finished his job ( by mistakeee ) and now it doesnt turn on , charge , go to recovery/odin , hold down power button for 30-60-120 sec nth hapend, it has baterri 90-100 % . plss guys help me :'( i have an samsung galaxy s advance .

Brick : Flashing Red LED + Soft Buttons

I tried flashing http://goo.im/devs/TheShadow/geehrc/ZVB-Stock-Rooted.zip
This morning after having the unofficial rootbox version on there. Well it somehow bricked in the middle as I left it installing while I went to dinner
Now it's dead and flashing the red led and white softbuttons one after another if it's plugged in a power source. If not plugged in I can't get it to respond at all. I tried LGNPST and it works in download mode but even after that I get to 85% and the same thing happens with the lights.
Not sure what I should / can do I need to rescue my picture folder from the phone

ippikiokami said:
I tried flashing http://goo.im/devs/TheShadow/geehrc/ZVB-Stock-Rooted.zip
This morning after having the unofficial rootbox version on there. Well it somehow bricked in the middle as I left it installing while I went to dinner
Now it's dead and flashing the red led and white softbuttons one after another if it's plugged in a power source. If not plugged in I can't get it to respond at all. I tried LGNPST and it works in download mode but even after that I get to 85% and the same thing happens with the lights.
Not sure what I should / can do I need to rescue my picture folder from the phone
Click to expand...
Click to collapse
looks like you flashed an LG kernel on top of an AOSP ROM. You might have to do a battery pull.

Ugh Didn't know I couldn't do that. Sucks... I am exchanging this phone anyways but did not backup onto my computer before trying to flash a clean copy to return back

ippikiokami said:
Ugh Didn't know I couldn't do that. Sucks... I am exchanging this phone anyways but did not backup onto my computer before trying to flash a clean copy to return back
Click to expand...
Click to collapse
Do a battery disconnect. It's pretty easy and has fixed the problem several times for individuals that I know personally. Good Luck!

Xiutehcuhtli said:
Do a battery disconnect. It's pretty easy and has fixed the problem several times for individuals that I know personally. Good Luck!
Click to expand...
Click to collapse
Yup, I had to do a battery pull to recover from the same issue. You will need a Torx T4 for the bottom screws, and a 00 Philips for the battery connector. Just be very delicate, especially when disconnecting the terminal. Good Luck!

I get this everytime my phone's battery runs out. Im stock rooted and for some reason my phone stops working. It happenes to me two days ago,and just got it working this morning. When the lights start flashing i hold power and volumedown and it gets rid of it. But then my phone overheats if i dont go into the bootloader. I guess the last part is my problem though.

Battery pull worked! The problem now is how do I get back to stock? I tried to LGNPST the ZV9 bin to it but it's freezing at the 4G screen.

ippikiokami said:
Battery pull worked! The problem now is how do I get back to stock? I tried to LGNPST the ZV9 bin to it but it's freezing at the 4G screen.
Click to expand...
Click to collapse
LGNPST the zvb rather than zv9.
Sent from my LG-LS970 using xda app-developers app

How do i reboot the phone if the phone hangs suddenly? I have no idea about removing the battery and stuff. Is there any physical button combo to reboot?

ankurcshah said:
How do i reboot the phone if the phone hangs suddenly? I have no idea about removing the battery and stuff. Is there any physical button combo to reboot?
Click to expand...
Click to collapse
i think, it's vol up and power. (try vol down if up doesn't work)

[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. : (
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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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