Help stuck in bootloop - Galaxy S II Q&A, Help & Troubleshooting

Help guyz,
I was trying to use the MEdia scanner bug-fix on XXLSJ as given here by modding the AOI-Xtreme MOD by ICS-XD
Then, I reflashed the Simplistic LSJ version(clean install) and then flashed the modded AOI MOD.
I think I went wrong somewhere and landed in a bootloop.
I tried a lot to reboot into recovery but I failed.
I tried removing the battery and rebooting but no use.
Also, adb won't recongnize my device (maybe coz it's still on bootanim)
I tried a lot but am unable to start my phone.
My phone IS an I9100 International version.
Please help.

go to emergency mode then adb will recognize ur device
and press thanks of I helped

androidisfuture said:
go to emergency mode then adb will recognize ur device
and press thanks of I helped
Click to expand...
Click to collapse
Can you please tell how to do that??

Reboot into download mode and try re-flashing kernel or rom.

TheATHEiST said:
Reboot into download mode and try re-flashing kernel or rom.
Click to expand...
Click to collapse
Thanks
Successfully refreshed new ROM and restored backup
Sent from my GT-I9400

aadroid.dev said:
Thanks
Successfully refreshed new ROM and restored backup
Sent from my GT-I9400
Click to expand...
Click to collapse
what do you mean restored backup, how do you restored backup, do you not lose everything when flashing with new ROM through ODIN?
my SGS2 is currently having this bootloop issue, i havent got it rooted....
yesterday I was about to flash with stock ROM through ODIN, but will i lose all my notes (stock samsung apps)?
thanks for the replies

gutenmuach said:
what do you mean restored backup, how do you restored backup, do you not lose everything when flashing with new ROM through ODIN?
my SGS2 is currently having this bootloop issue, i havent got it rooted....
yesterday I was about to flash with stock ROM through ODIN, but will i lose all my notes (stock samsung apps)?
thanks for the replies
Click to expand...
Click to collapse
I flashed stock Rom through Odin, then flashed Siyah kernel over it.
After this, I restored a backup I created before the f**k up happened.
You'll loose your notes if you don't have a Backup
Sent from my GT-I9400

aadroid.dev said:
I flashed stock Rom through Odin, then flashed Siyah kernel over it.
After this, I restored a backup I created before the f**k up happened.
You'll loose your notes if you don't have a Backup
Sent from my GT-I9400
Click to expand...
Click to collapse
I see.. thanks for the reply!

Related

Unable to install CyanogenMod 7 again!!!

Hello guys,
I would have not made this post without a reason! I have searched the froum and used google for over 2 days but dont have a solution for my problem that's why i opened the thread!
My SGS2 was on CyanogenMod 7 and i decided to try the leaked version of 4.0.3 (I9100XXKP8 to be exact) so i preformed a full backup via recovery!
After this i flashed 4.0.3 using ODIN and used it did a root on it and istalled CM9. I did this just to see the real difference between the 2 firmwares. Everything worked great i had no problems at all.
After i was finished playing around with the firmwares i decided to restore my CM7 backup! I had no problems booting into recovery and the restore worked fine! no errors or anything. After i selected to reboot my device i got a Kernel Panic and couldn't do anything!
So i flashed KI3 stock from sammobile and rooted it via CF and then again i tried to install CM7 which goes fine through the install no errors! when i select to reboot the phone i have the ''Samsung galaxy s2 screen'' in a reboot loop! I reflashed the phone again with KI3 and tried again i followed the instruction step by step including wiping data/factory reset and wiping cache the same thinghappens. I tried to restore the CM7 back which i made, the restore process goes through but i get a kernel panic! So i reflashed KI3 again i thought it could have been the bootloader... i got the old boot loader and flashed it but i keep getting the boot loop! The strange thing is i can flash CM9 and it works but CM7 will not install on my phone at all! I have tried flashing it 10 times in the last 2 days.
Can anyone help me fix this and get back to CM7 because i dont know what to do anymore my flash count went from 5 to 39 in the last 2 days!
Note: i have tried using recovery and RomManager neither of them work! Also tried Stable CM 7.1.0 and nightly builds!
Try this and then restore again:
http://forum.xda-developers.com/showthread.php?t=1363738
Sent from my GT-I9100 using xda premium
Gnarfsan said:
Try this and then restore again:
http://forum.xda-developers.com/showthread.php?t=1363738
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
Hi,
i have tried this now and i am still getting a reboot loop! So it dose not work at all :[
I'v had the same problem. It was solved by flashing the .pit file for cm7 with odin.
That is very strange. I assume that you did a factory reset after that procedure?
Sent from my GT-I9100 using xda premium
syue87 said:
I'v had the same problem. It was solved by flashing the .pit file for cm7 with odin.
Click to expand...
Click to collapse
Can you tell me where you got the cm7 .pit from? as i am using the one provided with the OFW of KI3... Thanks again!
Gnarfsan said:
That is very strange. I assume that you did a factory reset after that procedure?
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
Yes i reset everything there was i did this whole guide step by step about 20 times tried everything! i even had help from the guys working on CM9. They couldn't help and told me to open a thread here :[
Well, the pit file is probably the best bet then. Good luck when you get it.
By the way I meant a factory reset after the kernel clean and restore.
Kernel clean -> restore -> factory reset.
Gnarfsan said:
Well, the pit file is probably the best bet then. Good luck when you get it.
By the way I meant a factory reset after the kernel clean and restore.
Kernel clean -> restore -> factory reset.
Click to expand...
Click to collapse
I have tried this still no luck :[ Also tried previous back ups but the are not working either. I also tried to flash Villian rom 3 now and the only thing that happens it stays on ''Samsung Galaxy s2'' screen no reboot or anything for bout 10 min. tried to go into recovery but it isn't working :[ back to flashing KI3 again!
Which kernel were you using when you originally made that cm7 backup? Was it the stock cm7 kernel or perhaps siyah's? The kernel panics are probably due to using a cm9 kernel(recovery 5.5...) to restore a cm7 backup and then using cf-roots ki3 kernel(recovery 4.2...)to restore a cm7 backup. I'd try flashing siyah's kernel(recovery 5.0...) through odin and then try to restore that backup.
Hv u try flash the cm7 twice in cwm before u reboot?
Sent from my GT-I9100 using xda premium
darrez said:
Hv u try flash the cm7 twice in cwm before u reboot?
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
Good point, the first install is usually quick, the 2nd one takes much longer and does the whole shebang.
TheRize said:
Can you tell me where you got the cm7 .pit from? as i am using the one provided with the OFW of KI3... Thanks again!
Click to expand...
Click to collapse
The forum won't let me post links. Just google search "Odin_+Pit_+_Flashguide_-_I9100.rar".
peachpuff said:
Which kernel were you using when you originally made that cm7 backup? Was it the stock cm7 kernel or perhaps siyah's? The kernel panics are probably due to using a cm9 kernel(recovery 5.5...) to restore a cm7 backup and then using cf-roots ki3 kernel(recovery 4.2...)to restore a cm7 backup. I'd try flashing siyah's kernel(recovery 5.0...) through odin and then try to restore that backup.
Click to expand...
Click to collapse
I was using the stock Kernel from CM7 to create the backup! The problem is i cant install a clean version of cm7 at all i end up in a boot loop! But if it try to install CM9 i have no problem? I will try to flash recovery 5.0 and try again :]
darrez said:
Hv u try flash the cm7 twice in cwm before u reboot?
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
Yes i have tried this about 10 times so far! I have read this on the Cyanogenmod forum but it didnt help : [
Re flashed 5.0.2.7 recovery and tried to do a restore. now the phone is stuck in a reboot loop again! So this dose not work either :[
Now i have also tried to do a fresh install of CM7 with the 5.0.2.7 recovery but it didn't work! I would be great full if anyone could help me!
Boot into recovery
wipe data/factory reset
goto mounts and storage > format system
install cm7 from sd card, then install it again right after
reboot
If this doesn't work throw the phone against the wall because this should work, unless flashing those bootloaders messed something up, or you flashed the wrong one.
as a last resort....
flash stock firmware.
flash cfroot kernel
try to flash cm again.
always works for me.
peachpuff said:
Boot into recovery
wipe data/factory reset
goto mounts and storage > format system
install cm7 from sd card, then install it again right after
reboot
If this doesn't work throw the phone against the wall because this should work, unless flashing those bootloaders messed something up, or you flashed the wrong one.
Click to expand...
Click to collapse
I have tried this as well!!! I was told by one of the CM9 members to do this! Didnt help :[ The thing is i got the old bootloader and flashed it unless there is more versions of it ????

[Q] brocken nandroid backup...

for months everything was quit well with my SGS2. Ich flashed a lot (CM7, CM9, ...) and bevor every new version i have done a nandroid backup via CWM.
Yesterday the backup stopped in the middle of the data partition (yes, i have waited very long to be sure it was not just a big file). I bootet the phone and tried again. Same result. Different file but approximately the same position.
I think it could possibly be a issue with the filesystem.... Bute how could i fix it? Or are there other possibilities?
thx and bye, Jens
riker187 said:
for months everything was quit well with my SGS2. Ich flashed a lot (CM7, CM9, ...) and bevor every new version i have done a nandroid backup via CWM.
Yesterday the backup stopped in the middle of the data partition (yes, i have waited very long to be sure it was not just a big file). I bootet the phone and tried again. Same result. Different file but approximately the same position.
I think it could possibly be a issue with the filesystem.... Bute how could i fix it? Or are there other possibilities?
thx and bye, Jens
Click to expand...
Click to collapse
download Rom Manager from Market and flash clockwork from there and back-up rom from Rom manager....this worked for me when my earlier clockworkmode gave me a treble...
zaheedahmed said:
download Rom Manager from Market and flash clockwork from there and back-up rom from Rom manager....this worked for me when my earlier clockworkmode gave me a treble...
Click to expand...
Click to collapse
I am using Rom Manager and this was where it fails in the first place... After that i tried directly in recovery and it fails also
riker187 said:
I am using Rom Manager and this was where it fails in the first place... After that i tried directly in recovery and it fails also
Click to expand...
Click to collapse
Rom manager is not 100% compatible wit sgs2, will not work for everybody. If you can boot in downloade mode flash stock ics rom through odin, then root with cf root kernel.
078gregory said:
Rom manager is not 100% compatible wit sgs2, will not work for everybody. If you can boot in downloade mode flash stock ics rom through odin, then root with cf root kernel.
Click to expand...
Click to collapse
As i explained, the problem occurs also if i am using the recovery mode. And if it freezes in the data partition i donĀ“t think it would be solvable flashing a new ROM.... Maybe i try to wipe the data partition. or should i format it? Is there a difference?
regards, Jens
formating the data partition solved the problem!

[Q]Cannt install Roms and cannt reboot into cwm recovery

I recently rooted my phone (BootLoader Locked) and i tried 2-3 custom roms like "Xperia Blue Ice_v2(.587)", "jjHybriD AOSP ROM"
When i install the 2nd one i feel some problems lyk keyboard not working, cannt make calls and also cannt reboot into CWM recovery(normal reboot happening). so i flash my device with "WT19_4.1.B.0.587_Kernel.ftf" this kernel...then i shocked !! no change happens. what i hav to do now suggest me....thanks.
TR!O said:
I recently rooted my phone (BootLoader Locked) and i tried 2-3 custom roms like "Xperia Blue Ice_v2(.587)", "jjHybriD AOSP ROM"
When i install the 2nd one i feel some problems lyk keyboard not working, cannt make calls and also cannt reboot into CWM recovery(normal reboot happening). so i flash my device with "WT19_4.1.B.0.587_Kernel.ftf" this kernel...then i shocked !! no change happens. what i hav to do now suggest me....thanks.
Click to expand...
Click to collapse
Just reflash stock rom, this should solve all your problems, but all data will be lost
mihahn said:
Just reflash stock rom, this should solve all your problems, but all data will be lost
Click to expand...
Click to collapse
If i'm not wrong this is the stock rom "WT19_4.1.B.0.587_Kernel.ftf" , reflash with it but nothing happend...if i'm wrong pls find me the stock rom. and what type of data will be lost....cannt i back up?
TR!O said:
If i'm not wrong this is the stock rom "WT19_4.1.B.0.587_Kernel.ftf" , reflash with it but nothing happend...if i'm wrong pls find me the stock rom. and what type of data will be lost....cannt i back up?
Click to expand...
Click to collapse
I think it's only the kernel as the file name said. The rom must be more than 100Mb big. (it's a long time ago when I flashed ftf...) maybe about 300 MB?
Sent from my Xperia Ray using xda premium
TR!O said:
so i flash my device with "WT19_4.1.B.0.587_Kernel.ftf" this kernel...then i shocked !! no change happens. what i hav to do now suggest me....thanks.
Click to expand...
Click to collapse
READ instructions properly.
thanks all....got that stock rom i think this onehttp://forum.xda-developers.com/showthread.php?t=1837398
one more thing....when i rooted my device i backup stock rom (or what that called donno, sry) using x-parts. can i restore it after flashing???
Do i hav to root it again after installing stock rom?
TR!O said:
thanks all....got that stock rom i think this onehttp://forum.xda-developers.com/showthread.php?t=1837398
one more thing....when i rooted my device i backup stock rom (or what that called donno, sry) using x-parts. can i restore it after flashing???
Do i hav to root it again after installing stock rom?
Click to expand...
Click to collapse
You need to root your ics rom and install cwm. Then you can restore the backup, but this would only help, if you took the backup when some apps and data are on phone. Otherwise this would be useless :silly:
Okk......thanks i restored sucessfully with previous apps n data .....thanks
Sent from my WT19i using xda app-developers app

[Q] Leaked 4.2.1

Hi All
I flashed my S3 with odin leaked 4.2.1 jelly bean stock rom. The found out tthat Message force closes. Then i tried to flash back to the latest british BTU 4.1.2 rom with odin, everything went well and afterflash on odin it said passed. but my phone just kept rebooting or looping on the samsung logo. I then flashed it back to the leaked 4.2.1 rom, but now i cant sms. What can i do to get sms, or is it possible to flash back from 4.2.1 to 4.1.2? Must i now wait for the official release where the message(sms) force close is fixed. Please help!!!!!.
Thanx
you need to do a factory reset when switching roms
Glebun said:
you need to do a factory reset when switching roms
Click to expand...
Click to collapse
^
He's right. Always consider a data wipe when going to another revision. There are millions of backup utilities to conserve apps, data, texts, etc.
Sent from my Nexus 7 using Tapatalk HD
Thanx will do. But will that solve the problem of the Message force close?
It did for me.
Sent from my GT-P1000 using Tapatalk 2
ruddag said:
Thanx will do. But will that solve the problem of the Message force close?
Click to expand...
Click to collapse
It solved it for me too.
Sent from my GT-I9300 using Tapatalk HD
Is it safe to flash 4.1.2 when I'm running 4.2.1? Flashing with odin.
calinoii said:
Is it safe to flash 4.1.2 when I'm running 4.2.1? Flashing with odin.
Click to expand...
Click to collapse
Yes it's save.
Make a backup before.
When finished do a full wipe and your ready to go.
Verzonden door mijn GT-I9300 met xda premium
And what backup should I do? If I flash with odin the custom recovery will be wiped and in case of a bootloop,i won't be able to restore using the backup.
Wipe using custom recovery,and right after go to download mode and do the job right? That's the way? Im just scared not to mess things up :/
calinoii said:
And what backup should I do? If I flash with odin the custom recovery will be wiped and in case of a bootloop,i won't be able to restore using the backup.
Wipe using custom recovery,and right after go to download mode and do the job right? That's the way? Im just scared not to mess things up :/
Click to expand...
Click to collapse
You can do nandroid backup with CWM and then copy that backup file in your pc. If you have any problems you can flash CWM and restore that backup
If my phone is in bootloop,can I flash CWM ?
calinoii said:
If my phone is in bootloop,can I flash CWM ?
Click to expand...
Click to collapse
Try it all depends upon what's broken .
jje
calinoii said:
If my phone is in bootloop,can I flash CWM ?
Click to expand...
Click to collapse
you can flash it as long as you can get into download mode

flashed wrong CWM

Hello
I've accidentally flashed a wrong cwm-recovery (meant for some other phone)
After the installation I've rebooted into recovery and it booted the one I already had (that's when I understood it's the wrong one)
Then I've tried to reboot back to my rom but it got stuck on the rom's loading screen
Tried to flash a new rom after using gs2RomWipe
Tried to restore from a nandroid backup
all of them gave the same result.. stuck on the loading screen
Now to my question...
If I flash a stock Rom via Odin.. will it be enough? will I be able to reroot and use my phone normally again?
Or is there an easier way maybe?
i did the same today..
all the time bootloop..
flashing same rom that i was using did not helped..
flashing some other rom helped but cant call cause phone dont see simcard..
flashing some other roms like cyanogenmod also stuck my on bootloop..
I am pretty sure you have to flash via odin.
Update...
I've flashed a stock rom via Odin but it went into a bootloop
when I've entered recovery it said E:failed to mount efs (invalid argument)
so far I've found no way to make the phone work
please help
PureMind0 said:
Update...
I've flashed a stock rom via Odin but it went into a bootloop
when I've entered recovery it said E:failed to mount efs (invalid argument)
so far I've found no way to make the phone work
please help
Click to expand...
Click to collapse
If you are using i9100.
Then flash philz kernel via odin.
Then boot into recovery.
MOUNT usb storage
Place any rom zip in the root of ex sd card
Flash it with full wipe
Sent from my GT-I9100 using Tapatalk 2
corruptionfreeindia said:
If you are using i9100.
Then flash philz kernel via odin.
Then boot into recovery.
MOUNT usb storage
Place any rom zip in the root of ex sd card
Flash it with full wipe
Sent from my GT-I9100 using Tapatalk 2
Click to expand...
Click to collapse
It doesn't work...
stock rom wont start, restored nandroid wont start, philz + new rom wont start
I have efs backup as tar.gz but didn't find a normal guide on how to use it without the phone working (i.e adb)
I'm not even sure if the problem is because of the efs missing or not but it seems to be the problem
PureMind0 said:
It doesn't work...
stock rom wont start, restored nandroid wont start, philz + new rom wont start
I have efs backup as tar.gz but didn't find a normal guide on how to use it without the phone working (i.e adb)
Click to expand...
Click to collapse
Ok.
Lets make it clear.
After flashing philz which rom did u flash?.
U should have not got any problem.
Sent from my GT-I9100 using Tapatalk 2
corruptionfreeindia said:
Ok.
Lets make it clear.
After flashing philz which rom did u flash?.
U should have not got any problem.
Sent from my GT-I9100 using Tapatalk 2
Click to expand...
Click to collapse
I've flashed ReVolt JB version
the result was the same as any other method I've tried so far..
stuck on loading screen / bootloop
PureMind0 said:
I've flashed ReVolt JB version
the result was the same as any other method I've tried so far..
stuck on loading screen / bootloop
Click to expand...
Click to collapse
Ok.
Do this.
Boot into recovery
Wipe cache
Wipe dalvik cache
Factory reset/wipe data
Format system
Format preload
Format data
Install philz kernel
Boot into recovery
Select wipe data/factory reset-clean to install a new rom
Install any custom stock rom like neat rom, vivekrom , biftor (choose any one)
Reboot
I assume you are using gti9100
Report back.
Sent from my GT-I9100 using Tapatalk 2
corruptionfreeindia said:
Ok.
Do this.
Boot into recovery
Wipe cache
Wipe dalvik cache
Factory reset/wipe data
Format system
Format preload
Format data
Install philz kernel
Boot into recovery
Select wipe data/factory reset-clean to install a new rom
Install any custom stock rom like neat rom, vivekrom , biftor (choose any one)
Reboot
I assume you are using gti9100
Report back.
Sent from my GT-I9100 using Tapatalk 2
Click to expand...
Click to collapse
I did everything you said. installed Bitfor rom
got the same result.. still stuck on loading screen
Thanks a lot for your help it's much appreciated
hope I'll be able to solve this somehow
PureMind0 said:
I did everything you said. installed Bitfor rom
got the same result.. still stuck on loading screen
Thanks a lot for your help it's much appreciated
hope I'll be able to solve this somehow
Click to expand...
Click to collapse
First boot takes 5/7 min.
Wait
Sent from my GT-I9100 using Tapatalk 2
corruptionfreeindia said:
First boot takes 5/7 min.
Wait
Sent from my GT-I9100 using Tapatalk 2
Click to expand...
Click to collapse
still nothing...
and it usually takes 1-2 mins max for me
also doesn't explain why stock from odin wont work
It seems to me that I need to somehow fix the efs folder but no idea how to do that
almost all the guides I've seen about that requires the rom to work and use root explorer
the others wasn't clear enough or just not related
according to the shell commands my efs folder is empty
copying the efs folder I have on my sdcard doesn't help because it's not there after reboot
I have a tar.gz as well but not sure how to use it
can I flash the .tar via odin? or some other solution with adb/shell?
or do you think it has nothing to do with my problem?
anyone have any idea how to help me???
I've tried many different ways but my device just wont make it past the loading screen of the rom (doesn't matter which one)
I really have no idea what can cause this problem
thought that flashing stock rom via Odin should fix it but it doesn't help
I've tried some methods I've seen to fix efs problems but so far nothing helped
I'm really desperate at the moment :\
download mode and flash the cwm kernel via Odin should work.
Sent from my GT-I9100G using xda app-developers app
i am facing exact same problem
and it also start with flashing cwm for kitkat
nothing working now stock or custmised rom
hope some one can help us to fix it
Any more ideas??
If I take it to my carrier company, will they be able to make it work with their official rom?
PureMind0 said:
Any more ideas??
If I take it to my carrier company, will they be able to make it work with their official rom?
Click to expand...
Click to collapse
i take it to the repair shop they told me they can repair it with some kind of box which will reflash the rom.
i will get it back tomorrow
hope it work
casperusm said:
i take it to the repair shop they told me they can repair it with some kind of box which will reflash the rom.
i will get it back tomorrow
hope it work
Click to expand...
Click to collapse
Good luck!
I should send mine tomorrow and hopefully they can fix it
update when you get yours back
casperusm said:
i take it to the repair shop they told me they can repair it with some kind of box which will reflash the rom.
i will get it back tomorrow
hope it work
Click to expand...
Click to collapse
Did you get your device fixed?
OK.....just a quick thing......Odin flashing a normal single file stock firmware *may* not be the solution as it just overwrites what is already there during the flash. I will provide a link to a three part firmware that wipes the old as it flashes.....this essentially flashes the firmware onto 'pristine' memory partitions....it *might* help......
Here's the link.....
http://www.mediafire.com/?1z5ao5b6r594x45
Search for @Hopper8s Odin troubleshooting guide for instructions on how to flash it.....
Good luck.....
This might be my S2, or it might be my W...but it's definitely CM

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