Bootloop - Galaxy S II Q&A, Help & Troubleshooting

Hi, i was charging my i9100 via USB. Tried to turn on the screen and the phone reboots.
Now, i am in bootloop. Can't access recovery mode. But can into download mode.
So i flashed different ROMs via ODIN and always bootloop. Tried with the last stock ROM and a branded ROM, and also flashed dorimanx kernel.
Never boots, it only changes the animation on the start, but still in bootloop.
Any ideas?

I can go into recovery mode now, but still cant boot any ROM. Help!

lumiden said:
I can go into recovery mode now, but still cant boot any ROM. Help!
Click to expand...
Click to collapse
Go to recovery . Wipe data/factory reset and wipe cache . And then flash the rom from your sd card.
Good luck :thumbup:

lumiden said:
Hi, i was charging my i9100 via USB. Tried to turn on the screen and the phone reboots.
Now, i am in bootloop. Can't access recovery mode. But can into download mode.
So i flashed different ROMs via ODIN and always bootloop. Tried with the last stock ROM and a branded ROM, and also flashed dorimanx kernel.
Never boots, it only changes the animation on the start, but still in bootloop.
Any ideas?
Click to expand...
Click to collapse
First do multiple cache+dalvik cache clear and reboot to see if it helps else
Do a full wipe(data+cache+dalvik cache) and then proceed to flash a rom
Gud luck mate

Are you two having a competition to see who can repeat the other the most times or something ?

MistahBungle said:
Are you two having a competition to see who can repeat the other the most times or something ?
Click to expand...
Click to collapse
Nope didnt mean to
Was in hybrid mode and didnt see his post
Sorry if it offended you

Related

[Q] Endless boot cycle after flashing Litening Rom

Ok so my Galaxy S2 i9100 arrived today!
I began by flashing VillainRom 1.1 and then decided to give Litening Rom a try, fired up odin, selected the rom and hit start. It completed but instead of rebooting the phone has gone into an endless reboot cycle, just showing the boot screen over and over.
I pulled the battery and am reflashing now, it that doesn't work where do I go from here?
Cheers
Edit: Nope, still not booting up properly
You go to the OP of the VillainROM thread and read the words in big red letters.
nobnut said:
You go to the OP of the VillainROM thread and read the words in big red letters.
Click to expand...
Click to collapse
So if I reflash VillainRom then enter recovery, wipe user data and THEN install Litening Rom it should work?
Or have I permanantly screwed my phone?
Edit: So I reflashed Villain and it booted up fine, I went into recovery as suggested and selected wipe user data. After that finished I held the power button down until the phone turned off, then booted into downlaod mode and flashed litening. Same problem occurred, I tried this two more times but both to no avail.
What am I doing wrong?
Cheers
flash to stock KE7, then boot into recovery, select wipe data/factory reset and wipe cache, boot into download mode, flash lite'ning rom, then then it should work 100%.
oh and btw, as long as you can boot into recovery/download mode, your device isn't bricked.
kaukassus said:
flash to stock KE7, then boot into recovery, select wipe data/factory reset and wipe cache, boot into download mode, flash lite'ning rom, then then it should work 100%.
oh and btw, as long as you can boot into recovery/download mode, your device isn't bricked.
Click to expand...
Click to collapse
Sorry to seem like a noob here... but a few quick questions, What does KE stand for exactly and where can I downlaod a stock version from? Cheers
KE means after KD but before KJ ,just as A is before C .
Stock roms dev page .
jje
kaukassus said:
flash to stock KE7, then boot into recovery, select wipe data/factory reset and wipe cache, boot into download mode, flash lite'ning rom, then then it should work 100%.
oh and btw, as long as you can boot into recovery/download mode, your device isn't bricked.
Click to expand...
Click to collapse
Worked brilliant, thanks
I had a similar problem, but I solved it by just booting into recovery mode, wiping data(/factory reset) and dalvik cache and then just flashing then ROM through "download" mode.
I did not have to flash any stock ROM prior to that. Just these two simple steps!

[Q] galaxy player 5 international soft bricked

I recently got a galaxy player 5 international with froyo. I rooted it with no problems, but when I tried to flash a kernel with cwm recovery it would get stuck in a boot loop unless i went into the cwm recovery mode. I noticed that the kernel I used, rumirand's r14, was based off of GB and thought that might be my problem. I tried updating my firmware to GB using WT Ho's custom rom, and now it just hangs on the samsung logo, but I can still get into cwm. I made sure to wipe both caches and wipe data before installing the rom. Is this fixable or have I turned it into an expensive paperweight?
Did you try a factory reset?
I am not expert but i tried the same with R14 kernel and bricked but done the same with R13 and it worked .
Chris4evernoob said:
Did you try a factory reset?
Click to expand...
Click to collapse
Now or before installing the rom? I did a factory reset before installing, but I haven't done one since.
DZonikg said:
I am not expert but i tried the same with R14 kernel and bricked but done the same with R13 and it worked .
Click to expand...
Click to collapse
I just flashed the R13 kernel, but I'm still in the same situation.
Instead of flashing a new kernel there should be factory reset option on the first set you have or in "mounts and storage"
I had this problem once and I managed to solve it flashing a full rom (like 2.3.5 rooted and with rj kernel). It seems some users are having problems when flashing only the kernel. After you solve the problem, flash back group rom.
I just tried the rom+kernel. It said it was successful but it must not have been because it was hanging on boot again, and now it won't respond to the power button. If I plug it in to the computer it gets an image of a battery turns off and repeats.
jnmaster said:
I just tried the rom+kernel. It said it was successful but it must not have been because it was hanging on boot again, and now it won't respond to the power button. If I plug it in to the computer it gets an image of a battery turns off and repeats.
Click to expand...
Click to collapse
Can you go back to CWM after flashing rom+kernel? If yes, usually it is a matter of wiping the data and Dalvik cache. Which ROM+Kernel did you flashed?
WT Ho said:
Can you go back to CWM after flashing rom+kernel? If yes, usually it is a matter of wiping the data and Dalvik cache. Which ROM+Kernel did you flashed?
Click to expand...
Click to collapse
No, I'm not able to get a response from the power button.
I used the ROM + kernel you posted http://forum.xda-developers.com/showthread.php?t=1446774

Phone not starting up after flashing a rom

My phone won't boot up, stuck on the galaxy s3 screen I can't get back into recovery to try flash again..
I have tried rebooting and pulling out the battery not having any luck.
any help would be appreciated.
tpkhan said:
My phone won't boot up, stuck on the galaxy s3 screen I can't get back into recovery to try flash again..
I have tried rebooting and pulling out the battery not having any luck.
any help would be appreciated.
Click to expand...
Click to collapse
can you get into download mode? if so flash a stock rom and try again.
tpkhan said:
My phone won't boot up, stuck on the galaxy s3 screen I can't get back into recovery to try flash again..
I have tried rebooting and pulling out the battery not having any luck.
any help would be appreciated.
Click to expand...
Click to collapse
Which rom are you trying to flash? some require you to wipe data/factory reset after flashing the rom or you get stuck in a bootloop.
squ89r97 said:
Which rom are you trying to flash? some require you to wipe data/factory reset after flashing the rom or you get stuck in a bootloop.
Click to expand...
Click to collapse
Purelook HD trouble was I could not get back into recovery it would just stay on the xperia screen, thanks for the help however I managed to get into download mode and flashed a stock rom .
Enter download mode and flash stock firmware and custom recovery
enter recovery and do a full wipe.

HELP 25pc210 test b/d?

Hi my phone is behaving as though it is bricked but its never been flashed until now. the phone was working fine all of a sudden the phone wont boot up in normal mode but will boot in download mode and recovery.
if i do a battery pull and the power on phone it boots straight to recovery. I have tried flashing two different stock roms and also installed siyah kernel and a custom rom but same issue when trying to boot up with a reboot in recovery the screen stays black and the computer recognises it a Sec S5PC210 Test B/D
Phone boots okay in recovery and download just not normal mode
Edit when i put siyah kernel and add second rom it starts booting but then the rom is in bootloops ????
Are u flashing roms through odin? If so try flashing it via cwm recovery. Before u do that try wiping cache, Dalvik cache and then Flash rom.
santhosh502 said:
Are u flashing roms through odin? If so try flashing it via cwm recovery. Before u do that try wiping cache, Dalvik cache and then Flash rom.
Click to expand...
Click to collapse
when flashing through cmw it boots rom bot rebooting the phone it crashes and with odin phone jus boots into recovery
I think you flashed siyah kernel with non stock rom. Siyah works only with stock based ROMs. Were you in Stock rom and kernel when your phone acted strangely?
santhosh502 said:
I think you flashed siyah kernel with non stock rom. Siyah works only with stock based ROMs. Were you in Stock rom and kernel when your phone acted strangely?
Click to expand...
Click to collapse
no the phone was never flashed i went into download mode to flash with odin and ever since its been acitng strange
chwads2k8 said:
no the phone was never flashed i went into download mode to flash with odin and ever since its been acitng strange
Click to expand...
Click to collapse
at moment i jus managed to get wanam lite on it and it boots up and acts fine when on but sometimes phones turns off when screens off i have to do a battery pull and power back on it boots back up. when the phones on everything works fine which is why i dont think its hardware related
still dont understand why it wont boot up properly even with full clean odin flash, i tried using oding and nand erase all but odin just froze on erase and didnt go further so not sure what prob is
I don't know bud. Even when your phone was never flashed it acted strange. Since it works now, u may try wiping data, cache, dalvik cache, system, battery stats and Flash new rom via cwm recovery. And make sure u flash compatible kernel too.
santhosh502 said:
I don't know bud. Even when your phone was never flashed it acted strange. Since it works now, u may try wiping data, cache, dalvik cache, system, battery stats and Flash new rom via cwm recovery. And make sure u flash compatible kernel too.
Click to expand...
Click to collapse
this is soooo wierd . i tried to flash kernel on the rom but went back to square 1. so flashed with odin and flashed siyah kernel and added second rom. phone rebooted ok but stuck in bootloops so this time i decided to do a full wipe and install wanam lite without updating kernel and modem. This has worked and now phone is fully working tested it for 12 hours no random reboots phone boots up normally ok.
So why doesnt it work if its flashed with stock from odin. iv have had many android phones so kinda know what am doin but the issue with this S2 is baffling. not gna flash this now as at moment its working perfect
chwads2k8 said:
this is soooo wierd . i tried to flash kernel on the rom but went back to square 1. so flashed with odin and flashed siyah kernel and added second rom. phone rebooted ok but stuck in bootloops so this time i decided to do a full wipe and install wanam lite without updating kernel and modem. This has worked and now phone is fully working tested it for 12 hours no random reboots phone boots up normally ok.
So why doesnt it work if its flashed with stock from odin. iv have had many android phones so kinda know what am doin but the issue with this S2 is baffling. not gna flash this now as at moment its working perfect
Click to expand...
Click to collapse
LOL this just gets worse now my mobile network disconnects completly and comes back up so wierd and annyoing time to throw the samsung crap away and go for nexus

Hardbricked my S2. HELP!!!

Here is my case.
Was on 4.4.4 SlimSaber with TWRP recovery..
So, i intended to change back to stock rom. Downloaded the stock firmware from sammobile
After that, I used ODIN 3.10 to flash the stock firmware. Everything goes smoothly. But, after the process completed, I have bootloop in the Samsung logo.
Tried removing the battery and replaced it.. still the same.
Now I cant enter the Download and Recovery mode. My PC still detects my device, ODIN still show blue sign when I plugged it in
Any advice for me to recover it?
lucifer93 said:
Here is my case.
Was on 4.4.4 SlimSaber with TWRP recovery..
So, i intended to change back to stock rom. Downloaded the stock firmware from sammobile
After that, I used ODIN 3.10 to flash the stock firmware. Everything goes smoothly. But, after the process completed, I have bootloop in the Samsung logo.
Tried removing the battery and replaced it.. still the same.
Now I cant enter the Download and Recovery mode. My PC still detects my device, ODIN still show blue sign when I plugged it in
Any advice for me to recover it?
Click to expand...
Click to collapse
Wipe data and cache partition in recovery. Turn off the phone and hold 3 buttons at the same time (volume up+home+power). Then wipe data and cache.
Zile995 said:
Wipe data and cache partition in recovery. Turn off the phone and hold 3 buttons at the same time (volume up+home+power). Then wipe data and cache.
Click to expand...
Click to collapse
Sir, unfortunately I could not enter the recovery mode. I tried a few times already.
lucifer93 said:
Sir, unfortunately I could not enter the recovery mode. I tried a few times already.
Click to expand...
Click to collapse
Try a 'USB jig' to force the phone to 'Download mode' and then try flashing the stock firmware once agian and see
Zile995 said:
Wipe data and cache partition in recovery. Turn off the phone and hold 3 buttons at the same time (volume up+home+power). Then wipe data and cache.
Click to expand...
Click to collapse
Sun90 said:
Try a 'USB jig' to force the phone to 'Download mode' and then try flashing the stock firmware once agian and see
Click to expand...
Click to collapse
OK.. Will try to get one.. and try it. What if after flash the stock firmware it still the same?

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