[Q] Boot loop. - Galaxy S II Q&A, Help & Troubleshooting

Hi. There is my problem
4 days ago i get sgs2 after JITAG.
Now it's in boot loop. I tried almost everything.
So. It's like that :
- phone is in boot loop.
-can't access recovery
- can get to DL
- Odin flash every rom and kernel tried on v1.85 and v3.07. Always succeed. But nothing happens.
When i woke up s2 was hot and off. I Turn it on and battery percentage was 10% ( before sleep it was ~85%) . I plug it to AC.
That was first symptomps . Next tried to install game from market when it installed i tried to play but phone restarted then pop up window that inform me about updating apps ( it was 4 apps) and after update i can't do anything. Phone froze. I take out battery and put it on. Turn on s2 and from this point i have boot loop i can't go to recovery only dl works.
Before JITAG there was nand rw corruption. Can it be the same this time ? What u propose ?

tomekx93 said:
Hi. There is my problem
4 days ago i get sgs2 after JITAG.
Now it's in boot loop. I tried almost everything.
So. It's like that :
- phone is in boot loop.
-can't access recovery
- can get to DL
- Odin flash every rom and kernel tried on v1.85 and v3.07. Always succeed. But nothing happens.
When i woke up s2 was hot and off. I Turn it on and battery percentage was 10% ( before sleep it was ~85%) . I plug it to AC.
That was first symptomps . Next tried to install game from market when it installed i tried to play but phone restarted then pop up window that inform me about updating apps ( it was 4 apps) and after update i can't do anything. Phone froze. I take out battery and put it on. Turn on s2 and from this point i have boot loop i can't go to recovery only dl works.
Before JITAG there was nand rw corruption. Can it be the same this time ? What u propose ?
Click to expand...
Click to collapse
Did you download the stock firmware from sammobile.com ? And after falshing rom via Odin go to recovery and do Wipe Data/ Factory Reset and Wipe Cache then Reboot.
Sent from my iPhone using Tapatalk

Tried this. But still can't go to recovery mode.
So Wipe isn't possible for now.

Search for Hopper8's 'Odin troubleshooting' thread, there's a link to a 3 part firmware in that thread. Download the firmware (assuming you have an I9100; if you don't, do not download this firmware/flash it. You'll brick your phone if you do), flash it with Odin, which will wipe your phone. Hopefully the wipe will remove whatever remnants of what you had on the phone previously which are probably causing bootloop.
Edit - However, given the 'background' to this issue (the JTAG/etc), don't be surprised if you end up needing a motherboard replacement. Cross your fingers the 3 part firmware does the trick though.

Tried 3 part firmware. And still the same. DL but no recovery.
So all hope gone ? Only option for me is replacement or another JTAG ?

If it were me, I'd keep trying different single part firmwares and the 3 part firmware over & over. Given a JTAG didn't fix it the first time around, you'll probably find a JTAG won't work this time either. Motherboard replacement most likely scenario as per my PP.
tomekx93 said:
Tried 3 part firmware. And still the same. DL but no recovery.
So all hope gone ? Only option for me is replacement or another JTAG ?
Click to expand...
Click to collapse

Related

sgs2 over night dead?

hey,
prehisory:
last night, my phone were somewhere in my bed, cus i fell asleep. the wohle night i'm charging my phone always.
(happened a few times, but i think this time i slept over my phone)
next morning i woke up, picked up the phone & wanted to use it, but it got a freeze screen, was medium-temperatured (not more than a little gaming).
didn't thought anything bad, i pulled out my micro usb charger and forced a restart by contiounsly press power.
problem now:
it booted up as normal but it took really longer than usual. it seemed to freeze sometimes during boot, sometimes i canceled booting, and tried another time..
really really strange behaviors happened, but after a long time just let the phone boot, i got dropped to my homescreeen. all was looking good except the whole status bar just wasn't there. damn.. but ok, tried another 1-2 boots, to see if it get stable after a while but that doens't changed anything..
i can't eitgher get into CWM, just into download mode.
ideas?
i thought overheated but i guess that my phone either would'nt boot up (cpu burned) or stays at black screen (gpu burned)?
so i tried getting into CWM which doesn't worked. then i flashed official samsung ics via odin -> boots up till the coulorized "S" appears, stays in this state, and keep bootlooping (see this when the animation starts by this kind of flowers again)
tried another older stock rom, the same. stock kernel, the same, cf-root with CWM4, the same, i cant even then get in CWM..
any idea??
i'm goin crazy on this.. too much money wasted if this wont work -.-
...........
cabloomi said:
flash a rom like hydrog3n rom, it doesnt need you to fully wipe so most likely you wont get a boot loop, once youve tried that, post here and ill reply
Click to expand...
Click to collapse
Which part of "i can't eitgher get into CWM, just into download mode. " did you not understand?
OP:
Just flash a ICS rom for now and later you can try to see if it works or not. (CWM)
Have a good day.
Can you get stock recovery?
From Odin flash cwm, not the CFRoot one. than try it, strange you can get download mode but not recovery.
You have to wipe to get rid of boot loop
Sent from my GT-I9100
beston94 said:
Which part of "i can't eitgher get into CWM, just into download mode. " did you not understand?
OP:
Just flash a ICS rom for now and later you can try to see if it works or not. (CWM)
Have a good day.
Click to expand...
Click to collapse
Unfortunately the poster that replied never bothers to read the OP and just shoves out any old nonsense .
jje
so, finally i got it back,
did this howto: http://forum.xda-developers.com/showthread.php?t=1457458
so now i'm back on stock ICS samsungs rom.
flashed the suitable CF-Root-SGS2_XX_OXA_LPH-v5.2-CWM5.tar
but now i can't access the CWM menue, by pressing power, vol up, home
?
When you say you can't access recovery, what's happening?
PROBLEM SOLVED
YOU FORGOT TO USE THE HOME KEY
1. Put 1 finger on home
2. Put 1 finger on volume up
3. Put 1 finger on top of power
4. Press them all together, and as soon as you see the anything on the screen, let go of everything
>>>>next time try to look up a guide on how to get into cwm recovery<<<<
cabloomi said:
PROBLEM SOLVED
YOU FORGOT TO USE THE HOME KEY
1. Put 1 finger on home
2. Put 1 finger on volume up
3. Put 1 finger on top of power
4. Press them all together, and as soon as you see the anything on the screen, let go of everything
>>>>next time try to look up a guide on how to get into cwm recovery<<<<
Click to expand...
Click to collapse
i did, it doesnt accessed cwm. never mind tryin around solved it.
now all fresh installed off samsungs official, but it isnt as good as before:
still slow bootup, and my status-bar is missing after booting (using latest miui which i also had before this problem, so formerly it was working)
after bootup, touch keys and all other won't response, so if bootup to lockscreen -> wait til screen goes off -> u cant wake the phone, or u have to wait a while maybe it light up for some reason.
any ideas?
hardware damage? i hope not..
no i think you need a good wipeing. but you need to find a way to get into download mode, dont give up try it 3 more time's, dont keep pressing the after the buttons logo apears
try this or its hardware............ you do any deviation and you are on your own.
remove your external sdcard and dont put it back until you are sure your phone works
as per your above post you can access cwm
1: format data / cache / system / sdcard or emmc [system is a must]
2: format preboot / boot [cwm 5.5 or some alternat if option available]
3: download stock i9100 ROM from checkfus (prefer) or sammobile
4: flash using odin, after first boot dial *2767*3855#
5: do not sign in, use for half hour or so, if you think it works sign in to google.
6: do not restore any thing, no titanium backups/restores
7: do not put your sdcard
if your phone works now you know its not hardware now do whatever
thanks mate you strength my opinion and hope that it isn't hardware.
i already had an stock ICS samsung rom on it, with sd mounted all worked fluently and well. (LPH rom). so i flashed a suitable CF-root with CWM, get in there, flashed custom ROM (latest miui + siyah kernel, the same combination i used for month and it worked).
so but what causes these problems i have? before it was fast booting and stable, now slow and the status bar is missing, the rom wont boot up in a normal way, i have to "bully" my phone while boot that i can see the desktop..
?
And your problem suddenly changed!
Custom ROM issues, download again, download something else, wipe, flash again.
Sent from my GT-I9100
atifsh said:
And your problem suddenly changed!
Custom ROM issues, download again, download something else, wipe, flash again.
Sent from my GT-I9100
Click to expand...
Click to collapse
yes it seemed like that, but i cant understand why it happened over night? i didnt used the phone and whoos! i woke up and all's screwed up? <,< d**m
Next time be clear, no problem on stock means, no problem but user problem.
Sent from my GT-I9100
atifsh said:
Next time be clear, no problem on stock means, no problem but user problem.
Sent from my GT-I9100
Click to expand...
Click to collapse
it changed, as i wrote before.
btt any ideas?

Ruined my SGII with flashing?

Hello all,
I was already in the possesion of a SGII that has been rooted and flashed before. I came from Hyperdroid Androidmeda with Android version 2.3.6. This morning i took the guess it was a nice day to flash a rom with ICS Android 4.0.x. My choice was the rom Resurrection Remix ics v2.5.2.
I followed the exact instructions to Wipe Data, Dalvic Cache and Wipe Cache partitions before i flashed the rom. This went well, at this moment i didn't get any errors or bugs i.e. At the moment my SGII was booted i discoverd the rom a bit. And i came to the conclusion my camera was not working,eve as my outgoing calls. When i called somebody it rang barely one tone before my phone shutted itself down and rebooted. When i get an incoming call i couldn't see the Green answering button neither i saw the red denial button. So i this was just a guess.
But the main problem: I rebooted my phone manually and then he just shut down. I couldn't get him on anymore. On no circumstance it is possible for me to get my phone on. Battery in and out has no effect. Even connecting my phone with an usb cable with the PC gave no reaction. When i connected it to the charger i saw a blink of the loading battery but after a couple seconds my phone went off. And i dont get him on anymore.
What is wrong, what can i do to solve this?
Enter Download mode and check if Odin sees the phone.
Dude..odin pc is your last hope..never mind..it should work...try flashing a rom from there...
Sent from my GT-S5830 using Tapatalk 2
I did now try to boot it that way.
I see:
Odin mode
Productname: GT-i9100
Custom Binary Download: YES (2 counts)
Current Binary: Custom
[GREEN ANDROID MAN]
Downloading...
Do not turn off target !!
And this is showing to me for at least two minutes. Will this take a while?
Try to flash a rom straight forward.....if it works...it works...nd if it dont...it dont
Sent from my GT-S5830 using Tapatalk 2
Hamstert said:
I did now try to boot it that way.
I see:
Odin mode
Productname: GT-i9100
Custom Binary Download: YES (2 counts)
Current Binary: Custom
[GREEN ANDROID MAN]
Downloading...
Do not turn off target !!
And this is showing to me for at least two minutes. Will this take a while?
Click to expand...
Click to collapse
It's clear you don't know how to use download mode. How did you flash your first ROM or root in the first place???
While in this mode, it is expecting you to connect the phone to a computer and use a flashing tool (Odin/Heimdall/etc) to install software to the device.
You can reboot just by holding the power button down for about 10 seconds.
ctomgee said:
It's clear you don't know how to use download mode. How did you flash your first ROM or root in the first place???
While in this mode, it is expecting you to connect the phone to a computer and use a flashing tool (Odin/Heimdall/etc) to install software to the device.
You can reboot just by holding the power button down for about 10 seconds.
Click to expand...
Click to collapse
The first rom i flashed was with CWM. It was quite easy and i rooted it more than half a year ago that was not that hard to. This is the third rom i flashed and now it all gets wrong.
I already had my connection between phone and computer but it doesn't respond any further.
At this moment i dont even get him in download/recovery mode anymore. Everytime i try it shows a second of a empty charging battery and it shuts down.
Manvendra05 said:
Try to flash a rom straight forward.....if it works...it works...nd if it dont...it dont
Sent from my GT-S5830 using Tapatalk 2
Click to expand...
Click to collapse
At that point i ain't arrived yet, unfortunately.
Here a guide (with picture) to flash stock firmware with odin, but the process is similar for custom rom.
Hope this help
Now i finally got in download mode again.
I tried to flash the Siyah kernel 3.3.2 via Odin.
In the attachment you see the result which went really well i thought?
But now i rebooted my phone and i only come to the begn screen with Samsung Galaxy SII GT-i9100 and the usual Yellow triangle. At that point it shut down again.
ht tp://oi46.tinypic.com/2q1ibec.jpg
Your in a boot loop now. Follow this guide: http://forum.xda-developers.com/showthread.php?t=1108499
Read this as well to better understand Odin and flashing: http://forum.xda-developers.com/showthread.php?t=1075278
When you are in download mode, nothing happens until you connect it to your computer and flash a ROM via Odin (which you will be doing). Next time, read more.
Sent from my GT-I9100 using xda app-developers app
Thanks all for helping me, my phone works again by flashing it back to stock rom.
I dont have any root privileges and the yellow triangle is gone now. I already miss things as changing battery icon and ability to use camera when batterylevel is below 15%.
But for now on i will take a little easy with flashing.
Mate, here is a hint for you. You should really thank people who help you and not just say “thanks." It helps the people who contribute feel like their input was actually appreciated in your problem solving. And not just for one person, but everyone who helps. Just a hint.
Sent from my GT-I9100 using Tapatalk 2

S3 stucked at Samsung logo afther doing nothing

Hello everyone!
First of: I'm not sure if this is the right section, if not move.
Second of: thanks for the help you give, hope you can help me too.
I got a problem with my S3.
I was running Cyano10 Nighty (not the last one, i just update once a week) and in the last days my phone started to reboot randomly once in a while.
Today my phone start to reboot again, but it get stucked at the SG3 logo. I coudn't turn it off so i unpluged the battery. I tryed to reboot it again and nothing heppened, still stucked at the logo.
I tryed to run into CWM and then apply a recovery but I wasn't able to go into CWM. I can only make the phone run into Download mode.
I tryed to run Odin and apply some random firmware just to see if it woud work but when i plug in my S3 in donwload mode odin couldn't see it (and the whole Pc couldn't see it too).
I tryed to install kies first to get the driver, it didn't work.
I installed the S3 Toolkit and then installed the driver from here, it didn't worked.
so i'm asking: What can i do? I don't know if the phone must be functional while trying to install the drivers. Whereas i can find another S3 and finish the driver's installation, but then will Odin work?
Any suggestion is appreciate, Thanks for the help!
EDIT: I've noticed that when i put the phone on charge on screen appear a stuck battery logo, it doesn't get green and the grey spin doesn't spin.
Also in donwload mode i read this: (not sure if this can help)
Product name:
Custom binary download: No
Current binary: Samsung official
System status: Custom
Does this mean 100% no warranty?
bigallo said:
Hello everyone!
First of: I'm not sure if this is the right section, if not move.
Second of: thanks for the help you give, hope you can help me too.
I got a problem with my S3.
I was running Cyano10 Nighty (not the last one, i just update once a week) and in the last days my phone started to reboot randomly once in a while.
Today my phone start to reboot again, but it get stucked at the SG3 logo. I coudn't turn it off so i unpluged the battery. I tryed to reboot it again and nothing heppened, still stucked at the logo.
I tryed to run into CWM and then apply a recovery but I wasn't able to go into CWM. I can only make the phone run into Download mode.
I tryed to run Odin and apply some random firmware just to see if it woud work but when i plug in my S3 in donwload mode odin couldn't see it (and the whole Pc couldn't see it too).
I tryed to install kies first to get the driver, it didn't work.
I installed the S3 Toolkit and then installed the driver from here, it didn't worked.
so i'm asking: What can i do? I don't know if the phone must be functional while trying to install the drivers. Whereas i can find another S3 and finish the driver's installation, but then will Odin work?
Any suggestion is appreciate, Thanks for the help!
EDIT: I've noticed that when i put the phone on charge on screen appear a stuck battery logo, it doesn't get green and the grey spin doesn't spin.
Also in donwload mode i read this: (not sure if this can help)
Product name:
Custom binary download: No
Current binary: Samsung official
System status: Custom
Does this mean 100% no warranty?
Click to expand...
Click to collapse
I've seen Product name being empty before... I think it was something to do with a bad flash.
And, I'm assuming you used TA... but there's probably no warranty seeing the product name is wiped and it's "custom".
xSpeced said:
I've seen Product name being empty before... I think it was something to do with a bad flash.
And, I'm assuming you used TA... but there's probably no warranty seeing the product name is wiped and it's "custom".
Click to expand...
Click to collapse
What do you mean with TA?
I've flashed the CM10Nighty trought CWM, but i was using it since a long time.
The phone was correctly working and then i found it stucked on logo. No flash between the "working phase" and the "stucked on logo phase".
It was working and then stuck, but i didn't do nothing in between.
bigallo said:
What do you mean with TA?
I've flashed the CM10Nighty trought CWM, but i was using it since a long time.
The phone was correctly working and then i found it stucked on logo. No flash between the "working phase" and the "stucked on logo phase".
It was working and then stuck, but i didn't do nothing in between.
Click to expand...
Click to collapse
What happens when you try to boot into CWM?
Looks like you may have a corrupted NAND and need a new motherboard.
Only way to know, is if you try to flash it in Odin you'll get a PIT error.
If that's the case, then they should fix it under warranty
Mika83AC said:
What happens when you try to boot into CWM?
Click to expand...
Click to collapse
Notthing, if i hold VolumeUp+Home+Power the phone doesn't turn on, neither on logo screen
holdz said:
Looks like you may have a corrupted NAND and need a new motherboard.
Only way to know, is if you try to flash it in Odin you'll get a PIT error.
If that's the case, then they should fix it under warranty
Click to expand...
Click to collapse
I can't use Odin cause when i plugin the phone (in download mode) Odin and the whole PC can't see it. I have win8, i don't know if that's a problem for Odin or something.
Is there a way to check if i have driver/odin/any working without using the phone?
Is there a way to check if i have driver/odin/any working without using the phone?
By plugging another SGS3 in is all .
jje

Stuck with no clue what to do, please help!

Hi Everyone,
This is my story:
I woke up today to my phone being off. Thinking it was battery, I got my spare and replaced it. Turned on the phone and saw the:
"Samsung
Galaxy S III
GT-I9300"
This logo kept on appearing, then disappearing; appearing then disappearing. It is still doing that and I can not get past it. I have tried clearing Dalvik Cache (yes I can access recovery mode). I have tried using Odin to flash stock firmware to it (it showed a "PASS"), and still nothing works. I am at the end of my wits with this phone. Based on what I know, my options are:
1) Wipe/Reset Factory data
2) Take it to a repair shop bcz of a hardware malfunction (no warranty)
3) Throw it in the bin
Any other options that might get me into the phone to get my information?
Just so you guys know, this phone was rooted a couple months back. The only reason I rooted it was to use Titanium Backup. Needless to say, I wasn't messing around with it when this happened. Please advise!
Use Google or search on XDA next time!
Looks to me like you have SDS!
http://forum.xda-developers.com/showthread.php?t=2091045
factory reset should've been the first thing you did after the cache. that's your solution. it's not sudden death, just do a factory reset
noisydroid said:
...I woke up today to my phone being off. Thinking it was battery...
Click to expand...
Click to collapse
Can you enter recovery? Or it's just DL mode?
I can enter recovery and DL mode. For the record, I just did a wipe data factory reset and it's still doing the same thing. Any suggestions now?
If you can get into download mode then try flashing stock Rom with Odin, if it doesn't boot up, go to recovery and do factory reset.....
slaphead20 said:
If you can get into download mode then try flashing stock Rom with Odin, if it doesn't boot up, go to recovery and do factory reset.....
Click to expand...
Click to collapse
Thank you. But I already did both of your suggestions and they didn't work.
Read the sudden death syndrome thread .
Take phone to Samsung service .
jje

[Q] HELP! S2 doesn't boot

Hi Everybody! some weeks ago, I bought a S2, but it doesn't boot, it gets stuck at battery charging logo, and doesn't enter into recovery but I can get into download mode and flash in odin, I've flashed stock rom and doing some stuff I've read in forums, but still the same, it doesn't turn on without A/C or USB cable, just shows the battery logo and the ring and then reboots itself, i've been reading that it may be a NAND rw corruption, but i've followed all the steps to fix it and nothing happens, could someone help me? Sorry for my bad english.
OMAR_IMR said:
Hi Everybody! some weeks ago, I bought a S2, but it doesn't boot, it gets stuck at battery charging logo, and doesn't enter into recovery but I can get into download mode and flash in odin, I've flashed stock rom and doing some stuff I've read in forums, but still the same, it doesn't turn on without A/C or USB cable, just shows the battery logo and the ring and then reboots itself, i've been reading that it may be a NAND rw corruption, but i've followed all the steps to fix it and nothing happens, could someone help me? Sorry for my bad english.
Click to expand...
Click to collapse
After flashing stock rom with Odin are you able to go into recovery mode if yes then do Wipe data and wipe cache then try to Reboot.
Sent from my iPhone using Tapatalk
Find Hopper8's 'Odin troubleshooting' thread & try the stuff in the thread (particularly flashing a 3 part firmware). If the NAND truly is corrupted, only fix is JTAG (fair chance it won't be possible though) or motherboard replacement. If I were in your situation (I.E faced with paying a fair amount of money to have your phone repaired), I'd be trying the stuff in Hopper's thread over and over/flashing as many stock roms as I could get my hands on

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