Hi guys,
I'm truly desperate tonight. This morning I was at work and recieved a phone call. Answered, everything was fine, and put the phone back again on my desk. Half an hour ater, wanted to send a text, so I tried using the phone: screen remained black. I was like "ok,, this stupid S2 froze again, I'll just reboot it bu pulling the battery out".
Did so and........ still nothing. WTF? So I tried plugging it to charge (AC adapter). No "battery" symbol on screen, nothing. Starting to freak out a bit... I trie with a colleague's AC Adapter, same deal. I also tried with his battery, still no go. Phone remains totally off, nothing on screen, can't enter download mode. The only change when I remove the battery/put it back in is that the phone remains cold at first, and then a couple seconds (30?) after I hit the power button, you can start feeling CPU/GPU getting warmer on the right of the camera lens. So basically there's electricity flowing.
Tonight I gave it a go and opened it up to check if something's fried inside. The only odd thing was that BAT500 (google for some explainations) had leaked but the leak was NOT (and I really mean it) causing damages (yet). I removed the battery, as it does not impact dramatically the phone (just causes the date etc to reset to 01/01 when you remove the battery, apparently). But phone still won't boot, no logo, no "battery chrging", no light on screen...
This really looks like the "hard brick" emmc bug, however I've been running 4.0.3 rooted with Chainfire's CWM kernel for the last 6 months or so, and I never did any wipe or "reset to factory". So the so-called "hard brick bug" shouldn't occur. But symptoms sure look like it.
So to get back to my opening phrase, I am truly desperate. I do have backups of nearly every SMS/MMS (maybe not the last 2-3 days but well... I'll get over it) on my Gmail account, however what I don't have is a backup of my contacts. For some reasons, I don't like my contacts to be synced with Gmail, so they were left on the phone's memory (and not the SD card, because I always thought (how stupid of me) "well why put a SD card inside when there's like 16GB of embed storage ?!"). So I'm f**ked for my contacts, and also for many many pictures that were still inside the phone and not yet extracted to my computer.
So the question (for which I fear I already have the answer): is there ANYTHING I can do? i've contacted a guy in Paris who owns a USB jig, so I'll give it a try this week-end if he's available. But other than that, is there ANY way to recover something from my brick? Or someone witha genius idea of how to turn it back on for at least 5-10 minutes... ?
Any help is appreciated I'm really feeling stupid, as I'm always backuping everything, and I probably have backups of backups of backups.... but just not for this stupid phone...
Regards...
PS: Symptoms:
* Black screen, nothing booting nor charging
* When putting battery back on, nothing happens. If I hit the power button, phone starts getting just a bit warm near the lens (right side of it)
* No download mode
* Power+Vol down+Home + usb connection: nothing on screen, nothing on computer, no USB detected, ODIN sees nothing
* No it's not just the screen who died
Edit: Could JTAG be the magic solution? If so, is there any thread here like the "find a USB jig near you"... ? Wouldn't find the equivalent.
CoinCoin88 said:
Hi guys,
I'm truly desperate tonight. This morning I was at work and recieved a phone call. Answered, everything was fine, and put the phone back again on my desk. Half an hour ater, wanted to send a text, so I tried using the phone: screen remained black. I was like "ok,, this stupid S2 froze again, I'll just reboot it bu pulling the battery out".
Did so and........ still nothing. WTF? So I tried plugging it to charge (AC adapter). No "battery" symbol on screen, nothing. Starting to freak out a bit... I trie with a colleague's AC Adapter, same deal. I also tried with his battery, still no go. Phone remains totally off, nothing on screen, can't enter download mode. The only change when I remove the battery/put it back in is that the phone remains cold at first, and then a couple seconds (30?) after I hit the power button, you can start feeling CPU/GPU getting warmer on the right of the camera lens. So basically there's electricity flowing.
Tonight I gave it a go and opened it up to check if something's fried inside. The only odd thing was that BAT500 (google for some explainations) had leaked but the leak was NOT (and I really mean it) causing damages (yet). I removed the battery, as it does not impact dramatically the phone (just causes the date etc to reset to 01/01 when you remove the battery, apparently). But phone still won't boot, no logo, no "battery chrging", no light on screen...
This really looks like the "hard brick" emmc bug, however I've been running 4.0.3 rooted with Chainfire's CWM kernel for the last 6 months or so, and I never did any wipe or "reset to factory". So the so-called "hard brick bug" shouldn't occur. But symptoms sure look like it.
So to get back to my opening phrase, I am truly desperate. I do have backups of nearly every SMS/MMS (maybe not the last 2-3 days but well... I'll get over it) on my Gmail account, however what I don't have is a backup of my contacts. For some reasons, I don't like my contacts to be synced with Gmail, so they were left on the phone's memory (and not the SD card, because I always thought (how stupid of me) "well why put a SD card inside when there's like 16GB of embed storage ?!"). So I'm f**ked for my contacts, and also for many many pictures that were still inside the phone and not yet extracted to my computer.
So the question (for which I fear I already have the answer): is there ANYTHING I can do? i've contacted a guy in Paris who owns a USB jig, so I'll give it a try this week-end if he's available. But other than that, is there ANY way to recover something from my brick? Or someone witha genius idea of how to turn it back on for at least 5-10 minutes... ?
Any help is appreciated I'm really feeling stupid, as I'm always backuping everything, and I probably have backups of backups of backups.... but just not for this stupid phone...
Regards...
PS: Symptoms:
* Black screen, nothing booting nor charging
* When putting battery back on, nothing happens. If I hit the power button, phone starts getting just a bit warm near the lens (right side of it)
* No download mode
* Power+Vol down+Home + usb connection: nothing on screen, nothing on computer, no USB detected, ODIN sees nothing
* No it's not just the screen who died
Edit: Could JTAG be the magic solution? If so, is there any thread here like the "find a USB jig near you"... ? Wouldn't find the equivalent.
Click to expand...
Click to collapse
Sorry to say your motherboard is fried...
Only motherboard replacement will do...
Sent from my GT-I9100 using xda premium
Related
I know many have gone on saying, oh I hard bricked my phone, etc, but turns out it was soft bricked. So let me say, I've soft bricked my phone many times and recovered it using Odin trying out different ROMs.
So what happened tonight is I was using my phone, browsing the internet when it locked up, screen stayed on, no response. - Sure, no prob, just restart, it's happened before. I held down the power button and shut it off. But now it won't turn on again. Battery is fine, I tried it in another phone and swapped the other phone's battery into this one.
Plugging in a charger doesn't do anything. I can't check Odin, cause it there is absolutely no response from plugging it in, removing battery, plugging it in again, holding down power buttons while plugging in and inserting battery, etc. I've tried many ways of getting it to power up, nothing seems to be happening.
I was running Bionix 1.1, with no problems for a couple months, so I really don't think the ROM did anything to it. Think my hardware just took a dive? It's really strange, and I'm sad. This phone is just about to hit 6 months old.
Do you guys have any other ideas of something I could try? Maybe I'll even open it up and take a multimeter to it to see if power is at least going through the phone.
Help!
Thanks.
Hmmm... Maybe Try the jig and see if it responds (check the sticky on that)
If not, Then check with a multi-meter and check continuity check the usb, check if there is voltage passing through battery contact (continuity). this all fails, then i would dis-assemble and check components,
http://forum.xda-developers.com/showthread.php?t=908211
here is a link on how to do that. The nice thing is you can check easier when all assembled. Also, If you do figure it is a component then Globaldirect.com does sell the pieces so you can replace.
Not much help but without really seeing the phone it is just guess work (and even seeing the phone it usually is guesswork as well )
Thanks Oka1.
I don't think the Jig is going to help in my situation. I'm not having an issue getting into Download mode. The phone won't power on at all. If I saw an image on the screen at all, I'll feel alot more confident. But nothing at all is showing.
I'll figure something out. I'll probably call up Samsung when I get to work tomorrow and pull the phone apart.
Thanks.
Moved of: Samsung Vibrant > Vibrant General
To: Samsung Vibrant > Vibrant Q&A
Please put your questions to: Vibrant Q&A
I've been in this spot before. Try, pull the battery, plug in the phone, hold the three buttons and at the same time push the battery back in. Should do the trick. It's been a long time since i've had to do it but I think those are the steps.
pull the battery and only hold down the volume keys, plug the usb in and put the battery back in...download mode..
Well... it's working again.
I did nothing other than pulled battery, sim, memory card and left it all apart overnight. I don't know what this causes, but after 8 hours, I put it back together again and it started working.
I had tried this over a 3 hour period before going to sleep and it hadn't worked, but somehow overnight worked..... sooooooooooo strange!
But thanks so much for the suggestion guys!
Hi All,
Today when I unpluged my phone from charger I have noticed that I got USB symbol in notification bar, after checking what it is it turned out to be MTP connection but phone was not connected to anything. Next I took the battery out to reboot it and then I got empty battery sign with thermometer warning next to it!?! After few minutes phone booted in safe mode so I took the battery out again but this time for about 10 minutes. It is working fine since but Im worried that there might be something wrong with it. What do you think guys? Have someone had something like that?
Hey,
I had exactly the same thing happen today, tried everything I could think of, factory resets, formatting, cache wiping, tried reflashing multiple times with root and without root, XXKG2, XXKG1, KE7 and back to branded stock firmware. I also used a counter reset jig just in case that had any effect. Anyway, I ended up calling my provider and they suggested it was a hardware fault rather than software or settings and they are sending me a new one tomorrow.
I could only find one thread about a similar issue relating to the Galaxy S though I can't "refind" it, but basically there were a number of posters there with very similar issues and some of them had success cleaning the connectors in the port of the phone. I didn't really fancy trying this and breaking the connector or voiding my warranty and so I went with the easy option.
Hope that helps and hope you get it sorted easily!
Mark
Hi .. I have experienced more or less the same issue: mine was unplaged from charger and switched in "Driving Mode" showing a steering wheel in notification area. That happened many times so I just rebooted the phone and I got the empty battery sign with thermometer warning next to it me too!
Now usb connection is not working anymore I'm still able to charge the phone even flash is working using Odin, but no data connection is detected by any pc with any usb cable!
I've flashed the stock rom and tryed many cooked rom, but usb data is dead!
I think I have to return it on a service center!
Hope that is not your case!
Bye
Looks like it's not a one off then...one thing I would add, just in case anyone hasn't noticed, is that you can still use the phone as by plugging it in to charge then it does boot up properly. In addition, you can also still get into recovery and download via the Home+Volume key+power button methods so you can revert to stock rom etc. It's a bit fiddly to do this though as the phone seems to think its on charge and so you have to time the holding/pressing just right to beat the green battery and temperature warning sign...but at least we can do backups of all our data/apps.
I really do think it might be fixable with a bit of a pointy cleaning tool and maybe some isopropanol...but as I said I didn't want the risk of breaking something further. Worth a try if your carrier isn't very good at replacing things though!
Hello,
Yes, I am a noob, and after searching and looking through a lot of threads, I decided to make this post, knowing full well how annoying it must seem to those of you who actually know even a little about phones.
Someone special to me got the HTC HD2, and it was a bargain. But she hated windows, so I offered to help. She's had it for ages by now.
I believe I did everything correctly, blindly following guides (which I know is a bad idea from reading threads similar to this one).
The thing that makes my problem somewhat special is:
- Everything went smoothly, the android build is amazing
- I was a hero for a few hours
- She's playing some game when it suddenly freezes.
- Buttons not responding, afraid the battery has to go.
- Boots up, android guy stares at us for more than five minutes, battery has to go again.
- Nothing, NOTHING, happens after. Can't boot, screen is black.
So obviously I'm suspecting the battery is completely dead. It won't charge either from the computer or by plugging it to the wall. It was connected when it crashed, and there must have been power left. Now, I have the HTC desire HD, so I can't test my battery with the other phone.
Before I try to buy a new one, I need to know, being completely oblivious with regards to anything more complicated than rocks, if it's possible that I have installed any kind of software that can permanently mess up a battery. Feel free to laugh if this is the dumbest question ever. It's weird how it booted a little before permantently shutting down.
To make matters a lot worse, she's going abroad for five months possibly only equipped with a really old nokia phone until I can get things fixed and sent off to her (which will be quite expensive and perhaps risky.)
Have I messed up good, or is it just chance that the battery should fry hours after getting the android rom? Should I get a new one? Her phone was actually smoother than mine until the crash.
Sorry to make yet another "dumb noob ruins phone" but I really need to redeem myself, and fast.
Edit: Remembered the course of events was a bit different.
well, if I tell you that the phone wont charge when off when magldr is installed, would that change your opinion of whether the battery is at fault?
id suspect the crash broke something preventing rebooting (had this myself once or twice with nand android ) followed by teh battery being flat so wouldnt come back on. (And of course magldr wont let it charge when off....)
get an old usb cable, any type, cut end off, bare red and black wires, plug into wall charger and then hold red to + black to - on the battery for about a minute, this should let the phone start, , put it into bootloader (coloured stripey screen, not magldr) and let it sit there for a hour or three with usb plugged in, should now be charged enough to see if you can get into magldr, from there into cwm, and from there id do a backup, and then perform 'wipe data/factory reset', , if it boots to the clean rom, you can try (again in cwm) selectively restore the data and/or sd-ext partitions, which should bring back teh data and the installed apps. if the restore doesnt work, just do another wipe data/factory reset and start from scratch.
also, check the battery pins very carefully, they bend easily, especially when you pull teh battery whilst panicking!
samsamuel said:
well, if I tell you that the phone wont charge when off when magldr is installed, would that change your opinion of whether the battery is at fault?
id suspect the crash broke something preventing rebooting (had this myself once or twice with nand android ) followed by teh battery being flat so wouldnt come back on. (And of course magldr wont let it charge when off....)
get an old usb cable, any type, cut end off, bare red and black wires, plug into wall charger and then hold red to + black to - on the battery for about a minute, this should let the phone start, , put it into bootloader (coloured stripey screen, not magldr) and let it sit there for a hour or three with usb plugged in, should now be charged enough to see if you can get into magldr, from there into cwm, and from there id do a backup, and then perform 'wipe data/factory reset', , if it boots to the clean rom, you can try (again in cwm) selectively restore the data and/or sd-ext partitions, which should bring back teh data and the installed apps. if the restore doesnt work, just do another wipe data/factory reset and start from scratch.
also, check the battery pins very carefully, they bend easily, especially when you pull teh battery whilst panicking!
Click to expand...
Click to collapse
What ARE you?
It started. Honestly, when I was crossing wires I half suspected someone was pulling my leg. I can't thank you enough. Maybe I will be able to get this thing running again before I leave in the morning. I'll visit the link in your signature at a later point, too, as you may have saved me some money here.
The only real problem is that with no prior experience, I didn't even really get into what the different programs I installed actually do, so I'm not even sure where to go from magldr. I took a backup of what was essential before flashing, so I guess I'll just try to navigate to wiping and resetting. So relieved.
e: Progress, thanks again, fantastic.
Multiplum said:
e: Progress, thanks again, fantastic.
Click to expand...
Click to collapse
youre welcome.
Hi guys,
Very confused here!
I was running the latest AOKP Hydrogen rom and one of the latest Siyah kernels...
I recently moved onto the S3, so I was basically prepping my S2 to be sold. What happened was as follows:
I had my S2 connected to my PC to get some data off of it;
I went into the factory reset menu and it froze so I unplugged the USB cable (I assume it was waiting for the SD card to become available.
It displays the "settings is not responding. Would you like to close?" message, but I clicked wait and it seemed to work fine as I'd disconnected the USB cable;
At this point the battery was at about 19%;
I clicked factory reset with wipe SD card;
After a few minutes I check the phone and it's completely blank. I figure it's doing something and can't turn the screen on so I leave it for a few more minutes;
Eventually I grow concerned and assume the phone has crashed, so I hold down the power button to do a hard reset.
After this the phone does not turn on.
It does the following:
If I try to turn it on it displays the SGS2 logo (with the yellow triangle) for a few seconds and then turns off.
If I connect it to the power it displays the loading screen of the battery charge app for a few seconds and then turns off.
Sometimes if I mash the buttons it will flash on and off with a pure white screen until I hold the power button and turn it off.
Any ideas, guys?
My only idea is that something crazy has happened with the battery as I did swap my extended battery with my girlfriend's normal battery last night. As I work in a phone shop, I'll charge up the battery in another phone to make sure it has power.
But I know the battery has power, and the phone it doing exactly the same thing with my old 1650mah battery (which may or may not have power in it).
Any ideas? I was going to be selling it for around £200, so it was gonna really take the load of my shiny, new S3! 0_o
SirCanealot said:
Hi guys,
Very confused here!
I was running the latest AOKP Hydrogen rom and one of the latest Siyah kernels...
I recently moved onto the S3, so I was basically prepping my S2 to be sold. What happened was as follows:
I had my S2 connected to my PC to get some data off of it;
I went into the factory reset menu and it froze so I unplugged the USB cable (I assume it was waiting for the SD card to become available.
It displays the "settings is not responding. Would you like to close?" message, but I clicked wait and it seemed to work fine as I'd disconnected the USB cable;
At this point the battery was at about 19%;
I clicked factory reset with wipe SD card;
After a few minutes I check the phone and it's completely blank. I figure it's doing something and can't turn the screen on so I leave it for a few more minutes;
Eventually I grow concerned and assume the phone has crashed, so I hold down the power button to do a hard reset.
After this the phone does not turn on.
It does the following:
If I try to turn it on it displays the SGS2 logo (with the yellow triangle) for a few seconds and then turns off.
If I connect it to the power it displays the loading screen of the battery charge app for a few seconds and then turns off.
Sometimes if I mash the buttons it will flash on and off with a pure white screen until I hold the power button and turn it off.
Any ideas, guys?
My only idea is that something crazy has happened with the battery as I did swap my extended battery with my girlfriend's normal battery last night. As I work in a phone shop, I'll charge up the battery in another phone to make sure it has power.
But I know the battery has power, and the phone it doing exactly the same thing with my old 1650mah battery (which may or may not have power in it).
Any ideas? I was going to be selling it for around £200, so it was gonna really take the load of my shiny, new S3! 0_o
Click to expand...
Click to collapse
If it was bricked it wouldnt turn on even a bit. Just charge it or try changing the battery.
coolstorybro_123 said:
If it was bricked it wouldnt turn on even a bit. Just charge it or try changing the battery.
Click to expand...
Click to collapse
If I try to charge it it displays the SGS2 charging screen for a few seconds and then switcher straight off.
I just got into work and tried my colleagues 2000mah battery which had 32% in it. Exactly the same problem. WTF????
Thanks
Edit: FYI, it turns off before entering download mode or recovery. WTF????
Maybe you hit this ?
VAXXi said:
Maybe you hit this ?
Click to expand...
Click to collapse
That's just what I was thinking, actually
I couldn't find a description of what actually happens when this brick happens. The page doesn't really say... Does anywhere say?
Edit: I swear I didn't even flash the Siyah RC6 that was known to brick the phones either... -_-;;
Thanks!
It's not just a specific kernel, more are actually faulty. The whole story is here.
SirCanealot said:
Hi guys,
Very confused here!
I was running the latest AOKP Hydrogen rom and one of the latest Siyah kernels...
I recently moved onto the S3, so I was basically prepping my S2 to be sold. What happened was as follows:
I had my S2 connected to my PC to get some data off of it;
I went into the factory reset menu and it froze so I unplugged the USB cable (I assume it was waiting for the SD card to become available.
It displays the "settings is not responding. Would you like to close?" message, but I clicked wait and it seemed to work fine as I'd disconnected the USB cable;
At this point the battery was at about 19%;
I clicked factory reset with wipe SD card;
After a few minutes I check the phone and it's completely blank. I figure it's doing something and can't turn the screen on so I leave it for a few more minutes;
Eventually I grow concerned and assume the phone has crashed, so I hold down the power button to do a hard reset.
After this the phone does not turn on.
It does the following:
If I try to turn it on it displays the SGS2 logo (with the yellow triangle) for a few seconds and then turns off.
If I connect it to the power it displays the loading screen of the battery charge app for a few seconds and then turns off.
Sometimes if I mash the buttons it will flash on and off with a pure white screen until I hold the power button and turn it off.
Any ideas, guys?
My only idea is that something crazy has happened with the battery as I did swap my extended battery with my girlfriend's normal battery last night. As I work in a phone shop, I'll charge up the battery in another phone to make sure it has power.
But I know the battery has power, and the phone it doing exactly the same thing with my old 1650mah battery (which may or may not have power in it).
Any ideas? I was going to be selling it for around £200, so it was gonna really take the load of my shiny, new S3! 0_o
Click to expand...
Click to collapse
your phone is ok as far as it shows u the s2 logo
you have 2 things to do , try to go to recovery or download mode and formate data/factory reset then flash another rom , btw what kernel u used before your phone go to this situation ? if you were using stable kernel "cm,neak,fluxi,syah stable" so you are safe from hardbrick bug , and the hard brick bug is done only if you have faulty kernel and wibed your data through recovery , and this isn't your situation , so don't be afraid
evaworld said:
your phone is ok as far as it shows u the s2 logo
you have 2 things to do , try to go to recovery or download mode and formate data/factory reset then flash another rom , btw what kernel u used before your phone go to this situation ? if you were using stable kernel "cm,neak,fluxi,syah stable" so you are safe from hardbrick bug , and the hard brick bug is done only if you have faulty kernel and wibed your data through recovery , and this isn't your situation , so don't be afraid
Click to expand...
Click to collapse
Thanks for saying, but I can't get into recovery or download. The phone switches off before then!
That's what's so confusing! xD
Thanks
With a known good batter try hard resetting to download mode 2x in a row.. Hold the button config to get into download mode.. Hold it through two restarts.. Might work.
Sent from my GT-I9100 using xda premium
I've nuked mine a few times with buggy kernels, sounds like a similar situation. I got my device back by flashing CM9 resurrection, then flashing Siyah, and finally from CWM flashing an ICS-based stock ROM.
I'd suggest taking a backup of your efs unless you're selling it with stock.
Sent from my GT-I9100 using XDA
SirCanealot said:
Hi guys,
Very confused here!
I was running the latest AOKP Hydrogen rom and one of the latest Siyah kernels...
I recently moved onto the S3, so I was basically prepping my S2 to be sold. What happened was as follows:
I had my S2 connected to my PC to get some data off of it;
I went into the factory reset menu and it froze so I unplugged the USB cable (I assume it was waiting for the SD card to become available.
It displays the "settings is not responding. Would you like to close?" message, but I clicked wait and it seemed to work fine as I'd disconnected the USB cable;
At this point the battery was at about 19%;
I clicked factory reset with wipe SD card;
After a few minutes I check the phone and it's completely blank. I figure it's doing something and can't turn the screen on so I leave it for a few more minutes;
Eventually I grow concerned and assume the phone has crashed, so I hold down the power button to do a hard reset.
After this the phone does not turn on.
It does the following:
If I try to turn it on it displays the SGS2 logo (with the yellow triangle) for a few seconds and then turns off.
If I connect it to the power it displays the loading screen of the battery charge app for a few seconds and then turns off.
Sometimes if I mash the buttons it will flash on and off with a pure white screen until I hold the power button and turn it off.
Any ideas, guys?
My only idea is that something crazy has happened with the battery as I did swap my extended battery with my girlfriend's normal battery last night. As I work in a phone shop, I'll charge up the battery in another phone to make sure it has power.
But I know the battery has power, and the phone it doing exactly the same thing with my old 1650mah battery (which may or may not have power in it).
Any ideas? I was going to be selling it for around £200, so it was gonna really take the load of my shiny, new S3! 0_o
Click to expand...
Click to collapse
i am having exactly the same problem.i did a factory reset after flashing siyah kernel (SiyahKernel v3.3.1) on Resurrection remix v2.2.let me know if you guys find any solutions
JIG
try to use a download mode JIG.
I'm not sure if a link will violate xda-rules....
google it
dont worry
if you boot up and are getting the sg2 logo then you have not bricked you phone.
to fix simply download a .tar version of any rom and run odin to pda reinstall if you wanted to you could go the whole hog and reflash a fresh cf-kernal (rooted or stock) and then flash fresh firmware. just remember to get the kernal that originally matches the (ithink) your correct baseband ie xxki4
there should be no worries aslong as you dont pull the plug.
could have had a worse error saying installation incomplete please use kies then you would have to had taken battry out reinserted and hoped the three butn combo for rec. mode worked happened to me awhile back lol
hope i helped you
ps never read your post fully just skimmd the jist of it although the above should be applicable
also try resetting your battry stats in cwm
finally fixed
thanks for the help everyone.i have fixed it now.it seems like the problem was with the updated version of siyah kernel .i managed to put the phone in download mode.(kept the phone on the charger for a while. than, i don't know some how when i tried to go to download mode it did).and flashed siyah kanel v3.2.6.4 via odin
Hello, yesterday I cleared some cache using some app called "App Cache Cleaner - 1 Tap Clean" because my Dad's phone was low on storage, and it cleaned allright and then I umnounted the 2GB SD Card and then rebooted the phone. I don't know if this could be the cause, but ever since I did it the phone always reboots when the phone autolocks (or someone locks it). Sometimes it even reboots and stays black (note when someone calls you don't get a message that the subscriber is offline, it keeps ringing!) and then I have to hold the power button long enough for the phone ro reboot...
I removed the SD Card, tried factory reset, but nothing seems to work. The phone was never rooted or with a different ROM than the officials,. so I honestly have no idea why it keeps rebooting and doing stuff like that. It's on the latest available Android firmware -- 4.1.2.
What can I do to fix it?
Clean battery contacts with isopropyl alcohol, then try replace battery, then replace USB board/port - which is a relatively easy fix to do yourself for around 10 bucks (if you pay someone else to do it, labour could easily take this up to $70/80 or even more depending on labour costs in your country). If you decide to do this, KeithRoss39 has a guide in the General section (search for 'replacing USB charger board') that has all the info you need to get it done.
The other thing you could try before replacing the USB board is to flash stock firmware manually with Odin/in download mode (assuming you haven't already done this/the updates you've done up until now have been via Kies).
If I had to bet money though. I'd be wagering the battery (particularly if it's getting on age-wise) or the USB board (which is a common fault with Samsung phones).
Seriously, that is the only thing to do? I mean, it was okay yesterday and this suddenly hapenned... How can I be sure that it's from the USB Charger Board? And also, the phone won't reboot while I'm using it, but as soon as I lock it and wait a while, it reboots. I just tried wiping the phone again, and it even does that on the setup screen at the beginning... :crying:
Okay, I flashed a stock rom with Odin, as suggested, but it's doing the same thing... Now it's even worse! When I push the lock button when the phone is on, the phone freezes immediately and you can hear the lock sound looping over and over and over again. I have to hold the lock/power button for the phone to reboot... but it does that every time. Even when I don't press the lock/power button, only leave it to lock on its own, it does it again. It charges the battery just fine, I recharged it last night and it has 100% baterry... what could this be?