[Q] sgs2 stuck at boot screen - Galaxy S II Q&A, Help & Troubleshooting

first of all plz don't hate for making a new thread i really searched some time and i dind't find anything that helped me.
my sgs2 is stuck at the boot screen (splash screen with the S and "samsung galaxy sII" underneath).
i can access recovery and download mode. so i did a data/cache wipe and factory reset and than i flashed an original firmware with odin. flahs worked fine but my phone is still not booting. i also flashed an insecure kernel and tried - not working so i reflashed the original kernel - still not working. btw i flashed this one "GT-I9100_XEU_I9100XWKE7_I9100XXKE4_I9100XEUKD1".
so can anyone help me plz?!

Lol. Funny.
Sent from my Kyocera Echo.

POST ONE
http://forum.xda-developers.com/showthread.php?t=1108499
jje

JJEgan said:
POST ONE
http://forum.xda-developers.com/showthread.php?t=1108499
jje
Click to expand...
Click to collapse
as i said in my first post if you would have read it i already did this and it is not working!

have you tried updating thru KIES?
which region is your handset from?
and you have already tried using the USB Jig too...right? after reading the POST one
If you belong to XEU, Kies would update the phone to KF3.
After updating the firmware normally the phone gets stuck in the boot screen for 10-15 secs first time around. i hope you are leaving it there for a minute or so.

i tried kies but it didnt recognize the phone.
i also flashed kf3 now but it is still not working. left it on splash screen for about 10 mins or so...

Well for starters a question about failed boot would be better answered in a failed boot thread and you dont mention you have read that post in your OP .
Clean flash
Via CWM recovery mounts and storage format SD card System Data Cache and this will wipe all data .
Factory reset .
Phone will now not boot .
Enter download mode .
Open Odin
Download a stock rom and following instructions connect USB cable and flash .
That fails its a service centre job .
jje

ok jjegan can you plz explain that again so a noob can do it too?

Clean flash
Boot into recovery go to mounts and storage format SD card System Data Cache and this will wipe all data .
Factory reset .
Phone will now not boot no OS .
Enter download mode .
Open Odin
Download a stock rom and following instructions connect USB cable and flash .The same method you used .
jje
That fails its a service centre job .

Firstly, you did mention that you tried a factory reset, so the third post from JJE has no merit, so instead of assuming we know everything and rushing to answer, we need to determine the conditions under which your phone is no longer booting.
Was the phone working normally?
If it was, what rom was the phone running in the first place, and what did you do (if anything) before it got stuck at the boot logo?
The last post by JJE is "assuming" you have the CWM recovery, I am going to ask you, which recovery do u have, is it the stock recovery or the CWM recovery. if it's the ClockworkMod you would know.
Did you try a normal reboot or did you try flashing something on the phone before you got the bootloop?

yes the phone was working normally. i didn't do anything before it got stuck at boot. The stock rom with t-mobile austria branding was running on it. i can't say the exact version. The phone began to lag during games and browsing so i turned it off and wanted to turn it on again as it got stuck at boot logo.
no i do not have cwm installed so the factory reset and data/cache wipe was done from stock recovery.
after several on/off switches i tried flashing an unbranded stock rom available in this forum. first ke7 then kf3 but the phone still wont boot. also kies is not recognizing the phone.
thanks in advance.

What you want to do is get in into download mode open odin and
download and extract this
http://androidadvices.com/downloads/GalaxyS2_GTI9100_XXKG3_2.3.4.zip
tick repartition
click on PIT and select u1_02_20110310_emmc_EXT4.pit,
click on PDA and select CODE_I9100XXKG3_CL401405_REV02_user_low_ship.tar.md5,
click on Phone and select MODEM_I9100XXKG3_REV_02_CL1040774.tar.md5,
click on CSC and select GT-I9100-CSC-MULTI-OXAKG3.tar.md5,
flash it
after all done perfectly reboot to recovery and wipe partition cache
reboot once again and you are done
if this helped reply me

unfortuantly it didnt work out. i did everything as you described but it still got stuck at the boot screen.
i really dont know what to do any more...

Downloaded but asking for password to unzip?

One of the major do not touch is both repartition and pit file especially for a novice .
You have taken the steps in the Boot loop thread post recovery wipe user data . Download mode followed by flash a stock rom that fails flash Villain rom .
Personally i would take the phone to a service centre and claim it stopped working during a Kies update .
jje

Related

[Q] Boot Loop Problem - Need help ASAP!

Ok, before anyone asks I have checked other threads and posted my problem. However to no avail, as no one has replied.
So, strait to the problem... I recently decided to install an ICS theme for my SG2, i was having problems trying to get into CWM and once I was in (after about 2 hours of googling) I followed the necessary steps to install the Theme.
Once the phone began to re-boot it started the boot loop on the ICS boot screen, so I began searching XDA forums for a solution. The most common was to wipe data and user files then flash an original rom using Odin. I tried this and the phone simply boot looped on the Original SG2 boot animation. I also tried leaving it on the boot loop for up to 10 minutes but nothing happened.
Help ASAP would be awesome thanks in advance,
Sam.
You should always take a backup of your rom before flashing themes and other stuff in case something goes wrong but if u didn't take it. go to cwm and in there, go to advanced, from there mount usb
And put another rom on your sd card and flash it
Sent from my GT-I9100 using XDA App
Thanks for the post, I am new to rooting/ flashing etc, and realised i should have backed up my rom.
I cant seem to get into CWM because when I hold... vol up + Home + Power, I only get put into the Android recovery, not CWM. :/
Is there another way to get into CWM??
Also I might have backed it up, if I did where would it be in the files?
GypZ said:
Thanks for the post, I am new to rooting/ flashing etc, and realised i should have backed up my rom.
I cant seem to get into CWM because when I hold... vol up + Home + Power, I only get put into the Android recovery, not CWM. :/
Is there another way to get into CWM??
Also I might have backed it up, if I did where would it be in the files?
Click to expand...
Click to collapse
If you can't come into CWM, try to flash with Odin some rom which will give you a root. Lighting rom is one of them for example - http://forum.xda-developers.com/showthread.php?t=1095274
Then you should be able to get into CWM and flash other roms you want.
1. Boot into download mode.
2. Flash CF-Root, it does not matter which kernel you pick, just pick one.
3. You have recovery back.
ok, so I've managed to get it into CWM and I've installed Villain rom.
Problem is, it is still boot looping. :/
Any ideas?
Btw Thank you so much for the support so far.
GypZ said:
ok, so I've managed to get it into CWM and I've installed Villain rom.
Problem is, it is still boot looping. :/
Any ideas?
Btw Thank you so much for the support so far.
Click to expand...
Click to collapse
For CWM you need to install CWM if you have then you have overwritten it somehow .
ONE the BOOT LOOP post
or BOOT LOOP
http://forum.xda-developers.com/showthread.php?t=1108499
TWO.
....................................
Clean Slate for those that balls up the firmware .Or need to return to service or decide if its hardware/firmware problem .
Backup data first if phone is working .
Boot CWM recovery
Mounts and Storage
Format cache data system sd card .
Remove battery
Boot to download mode
Open Odin
Install correct stock firmware .
Still problems use usb jig to set rom counter to zero .
Return to service centre .
jje
THANK YOU
Thanks for all the help guys, I've got it ack to its original state and most importantly stopped the boot loop.
Thanks again,
Sam

Can't fix a failed root

Hi
I received my phone back from repair today and proceeded with the CM7 guide on rooting.
I failed to put the phone in to USB debugging.
I installed the drivers for heimdall and followed the guide to flash ClockworkMod Recovery
The phone was then stuck on the boot screen. Not the splash welcome animation.
Figuring something went wrong there I decided to flash it using Odin with the Lightning Rom.
It got stuck at 'Starting NAND Write' so I restarted the phone. Same issue, stuck at the start screen.
I can still get in to download mode and so tried to flash the stock Kernel and ROM.
All is successful in odin but when it starts I get put in to Android Recovery mode with a bunch of 'failed to open' errors.
After rebooting it's still stuck on the boot screen.
I really don't know what to try next.
Any help will be appreciated.
Thanks
I see you're on Orange UK, are you sure you have an I9100 and not an I9100P (or some other variant)?
Difficult to work out what you have actually done and why .
But first step would be .
....................................
Clean Slate for those that balls up the firmware .Or need to return to service or decide if its hardware/firmware problem .
Backup data first if phone is working .
Boot CWM recovery no recovery install cwm and root from .
Root + CWM .
http://forum.xda-developers.com/showthread.php?t=1103399
Mounts and Storage
Format cache data system sd card .
Remove battery
Boot to download mode
Open Odin
Install correct stock firmware .
Stock Roms .and csc
http://forum.xda-developers.com/showthread.php?t=1075278
jje
oinkylicious said:
I see you're on Orange UK, are you sure you have an I9100 and not an I9100P (or some other variant)?
Click to expand...
Click to collapse
I'm using the same files as I used previously. It's listed as a GT-I9100 in download mode.
I'm currently attempting to flash it again on a different PC.
Ok, So I fixed it, phew!
Further reading lead me to believe I had damaged the partition table as it was unable to read from the cache.
So I followed this guide to flash a stock rom that included a .pit file:
http://www.theandroidsoul.com/downl...oid-2-3-4-firmwarerom-for-galaxy-s2-ii-i9100/

[Q] HELP Samsung Galaxy S2 keeps restarting

Im a noob, so basically I rooted my phone and went into CWM recovery to flash a new ROM but stupid me didnt back up my stock ROM, and also I totally fogot to download a Custom ROM onto my sd card, so I went into CWM and cleared cache, clear data/factory reset, and rebooted but then it kept turning on and kept on doing that, the samsung logo comes on then keeps repeating.
After I went in cwm again and clear davnik cache, wipe cache, wipe data/factory reset a load of time randomly but it still didnt work PLEASEE HELP IM A STUPID NOOB AND I only got this new!!!
you didnt flash anything so it should still be fine, just without your data,you can get into recovery or download mode why not flash a new rom in odin?,your phone is still fine.look for a stock rom to revert
Your phone will take 5 to 10 minutes to boot after clearing cache, so if you are sure your mobile doesn't boot after 10 minutes then you have two alternatives .
1. Boot into cwm, connect your mobile to PC, mount your sdcard via cwm, copy the custom rom and flash it.
2. Download a stock from and flash it via odin
#*posted on the move *#
Flash again
1. Download a new stock rom from samfirmware.com
2. Save it to your pc
3. Get odin 1.85
4. Put your phone in download mode make sure battery is at least 50%, by holding down volume down, power and home key
5. Once in download mode press volume up to continue
6. Now on your pc you installed open odin 1.85 open the program
7. Connect the usb cable to phone first then to your pc.
8. Wait for the first box in odin to come yellow
9. Once it does click on 'pda' and find the stock firmware you downloaded do remember do not extract it nothing.
10. Once you have selected the file it will appear in the PDA section sometimes depending on the stock rom there might be 3 files so you may need to put the other files in the section above and below PDA so make sure you read this before anything.
11. Once done click start
Once the box turns green it will say passed and your phone will reboot and you will have successfully installed the original firmware back again.
Anything you dont understand reply back.
i am amazed how can u miss one of the sticky that says
[READ THIS] Got a Boot Loop? Don't post a New Thread!
http://forum.xda-developers.com/showthread.php?t=1108499
Slow N Stupid said:
i am amazed how can u miss one of the sticky that says
[READ THIS] Got a Boot Loop? Don't post a New Thread!
http://forum.xda-developers.com/showthread.php?t=1108499
Click to expand...
Click to collapse
Dont be sadly its the norm .
jje

cwm doesnt start/stuck at loading screen after stock flashed

Hey guys,
yesterday i flashed the latest unofficial temasek rom, before that i had cm 10.2.
at first it worked fine, but afterwards i also flashed the latest gapps.
it lagged a bit so i did a reboot but then it stuck at loading screen. i mean it seemed like it boots but it didnt continue.
i tried to get in cwm and it took about 5 minutes to get there, it said cant mount data etc.
i wanted to flash the normal cm11 but there was an error and then it couldnt start anymore. no blue circle.
after several minutes i got in the cwm and tried to flash different roms, at first custom via cwm, then i tried to flash the stock via odin and
it said it was successfull, but it wasnt. it still stuck at loading but its not frozen, the animation works well.
i tried wipes and factory reset but it didnt help. the only thing that works well is download mode.
its a normal unbranded s3.
thanks for helping
Flash Philz recovery
Or flash stock rom via Odin .
JJEgan said:
Flash Philz recovery
Or flash stock rom via Odin .
Click to expand...
Click to collapse
have already tried both, philz took also several minutes to launch,
and stock is "installed", stuck like every other room at booting screen
kom4for2 said:
have already tried both, philz took also several minutes to launch,
and stock is "installed", stuck like every other room at booting screen
Click to expand...
Click to collapse
Dont wate ur time Go to download mode then flash stock rom...
danierakes said:
Dont wate ur time Go to download mode then flash stock rom...
Click to expand...
Click to collapse
like i already said. the last rom i flashed was a stock rom. but it didnt work..
it still stucks at the animation..
ensure that you wiped all data, cache and factory reset
clean wipe..this step is often omitted during installation.
Zizza said:
ensure that you wiped all data, cache and factory reset
clean wipe..this step is often omitted during installation.
Click to expand...
Click to collapse
wiped all data cache and did factory reset, nothing helped.
custom rom via cwm flashed and stock rom via odin, but it still doesnt boot...
its still stuck at the animation..
i wanted to try the 3 part flash but mostly its uploaded at hotfile, and hotfile was shutted down...
could anyone show me a working link? and whats that pitfile i heard in some forums?
Sammobile and samsung-updates for firmware or xda stock rom thread .
PIT will kill your phone if used in ignorance its all in the faqs and guides .
Recovery FORMAT sdcard system data cache .
Boot to download mode flash stock rom via Odin .
Try the Kies recovery method .
JJEgan said:
Sammobile and samsung-updates for firmware or xda stock rom thread .
PIT will kill your phone if used in ignorance its all in the faqs and guides .
Recovery FORMAT sdcard system data cache .
Boot to download mode flash stock rom via Odin .
Try the Kies recovery method .
Click to expand...
Click to collapse
it finally works, but its quite instable. i took the battery out when it was still running, after that it couldnt start.
the only thing that work is the stock rom recovery, cwm or philz do not work...
i had to do the factory reset. but the only thing that doesnt work is
ok, there was a message called factory mode...
im trying to get a new stock..
kom4for2 said:
ok, there was a message called factory mode...
im trying to get a new stock..
Click to expand...
Click to collapse
Read the faqs .
UNDERSTAND FIRST
http://forum.xda-developers.com/showthread.php?t=2362743
Network IMEI EFS
http://forum.xda-developers.com/showthread.php?t=2393289
Downgrade and network problems .
http://forum.xda-developers.com/showthread.php?t=2531221

soft brick OR hard brick OR BOTH, !!!!?

i already did a search in google and XDA but nothing worked ! please read carefully
my G925I just restarted and never be able to boot again, so i enter to stock recovery and wiped cache data BUT no luck, and flashed a stock firmware and still the same, it's boot to stuck recovery and show installing updates BUT at 30% its stop and saying "erasing" then its reboot and stay in bootloop,
i managed to get into download mode and flashed TWRP recovery, when ever i try to flash a rom the phone restart again and enter bootloop and it's never shutdown!!
tried :
1- wipe everything
2- flash more than one stock firmware
3- flash recovery and succeeded BUT it's keep restarting !
4- flash custom ROM BUT no luck, keep restart at installing !
5- flashed custom kernel and it WORKED :good:
for now i can only boot into download mode without restart
have a solution ? :crying:
hussam_qashu said:
i already did a search in google and XDA but nothing worked ! please read carefully
my G925I just restarted and never be able to boot again, so i enter to stock recovery and wiped cache data BUT no luck, and flashed a stock firmware and still the same, it's boot to stuck recovery and show installing updates BUT at 30% its stop and saying "erasing" then its reboot and stay in bootloop,
i managed to get into download mode and flashed TWRP recovery, when ever i try to flash a rom the phone restart again and enter bootloop and it's never shutdown!!
tried :
1- wipe everything
2- flash more than one stock firmware
3- flash recovery and succeeded BUT it's keep restarting !
4- flash custom ROM BUT no luck, keep restart at installing !
5- flashed custom kernel and it WORKED :good:
for now i can only boot into download mode without restart
have a solution ? :crying:
Click to expand...
Click to collapse
This is a soft boot due to the fact you still have the ability to access recovery and such what i would suggest you do is get factory files and restore phone back to stock and start over this should fix your problem. If you look around XDA you will find the files you will need ODIN being the main tool you will use to flash your phone.
The_Fallen_angel said:
This is a soft boot due to the fact you still have the ability to access recovery and such what i would suggest you do is get factory files and restore phone back to stock and start over this should fix your problem. If you look around XDA you will find the files you will need ODIN being the main tool you will use to flash your phone.
Click to expand...
Click to collapse
that's new for me, what's "factory files" exactly ? different from firmware?
thank you for you time
hussam_qashu said:
that's new for me, what's "factory files" exactly ? different from firmware?
thank you for you time
Click to expand...
Click to collapse
no i just said factory file as in the firmware just return phone to stock using Odin and you should have a working phone. to start with again
The_Fallen_angel said:
no i just said factory file as in the firmware just return phone to stock using Odin and you should have a working phone. to start with again
Click to expand...
Click to collapse
already tried that, no luck
keep restarting.
Maybe motherboard issue ?
hussam_qashu said:
already tried that, no luck
keep restarting.
Maybe motherboard issue ?
Click to expand...
Click to collapse
You have flashed a stock firmware with stock bootloader etc. using odin and still stuck in a soft brick ? remember to wipe the phone a rule of thumb i use is to wipe the phone 3 times before i flash and 3 times after i flash. during the first boot up it may take a little time to boot as it must rebuild the cache. I dont think it is a motherboard issue i think you may have just flashed a wrong file that needs to be wiped out before continuing on. i have had this problem in the past with a galaxy s2 when i was developing custom roms for it. it took me a couple of wipes and factory firmware reflashes but i eventually got the phone back in working order. look here for the factory files you will need to re flash your phone with odin ----> https://samsung-firmware.org/model/SM-G925I/ also make sure you are using the latest version of ODIN you will to put your phone in download mode instead of recovery
Hi, could you fix it ?? I am facing the same issue.

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