yashsingh1/xdaforums huggingface dataset:
[Galaxy S II Q&A, Help & Troubleshooting] lysander81:
well

i got a bootloop

i'm using checkrom v5, and spb shell 3d 1.5.3, kernel siyah 2.6.11/speedmod 1.9 (either gave me a bootloop so i suggest this is not about the kernel)

and not about the cpu clockspeed either, i tried stock speed, and over clock to 1.6 ghz..still gave me a bootloop

so every time i boot my phone from off mode, after a short minute it bootloop again and again..i tried so many modifying after that, but still gave me a bootloop

any hint?
[Galaxy S II Q&A, Help & Troubleshooting] CamoGeko:
Tried booting into recovery via the 3 button combo and doing a factory reset?

Communicated using an SGS2 droid with XDA premium neurotransmitter while DJ'ing on the Enterprise.
[Galaxy S II Q&A, Help & Troubleshooting] bahmonkeys:
Ok!! This is taking from the start of the post with a few of my steps

Before starting any of this make sure your battery is charged at least 40%

Download SiyahKernel: http://www.gokhanmoral.com/

Download the TAR

Put your phone into download mode hold (home + power + volume down).

Open ODIN and connect your phone to your computer via USB cable.

Click on the PDA option on ODIN. Browse to where you downloaded SiyahKernel tar.

Make sure the you see in yellow COM and see in the Message area "Added!!" (this is all in ODIN)

Dont mess with any other options it should be setup by default but just in case make sure "auto reboot" and "F. Reset Time" is ticked and nothing else except the PDA because thats the kernel you will be flashing.

Click Start. Wait for it to finish. Done you flashed the new kernel

To get into CWM mode hold (home + power + volume up)

Im not going to get into flashing a ROM

I HOPE THAT HELPED YOU IF IT DID HIT THE THANKS BUTTON. IF IT DIDNT SEND ME A PRIVATE MESSAGE AND I WILL HELP YOU STEP BY STEP
[Galaxy S II Q&A, Help & Troubleshooting] XDA mark:
Ok guys, Im really pissed off.

Seems like I just made a boo boo. Everything has been good with my device since months, haven't made any mistakes. And now... looks like Im going to be spending some time (which I actually dont have) to repair my phone.

I was just using the LCD Density changing app to test out different DPI's. I used 160 first, worked all fast great. Then I tried 192, also worked fast and all well. Then I decided to stop with the DPI changing stuff, and did a "restore to default 240". After that -> bootloops. I was like :confused:

So have been trying (and knowing it wouldn't help) to flash a restore theme and stuff but really it is'nt going to help.

Now I have done some quick research, and I could have done an advanced restore of the SYSTEM part of something via recovery so I wouldn't have to reflash everything. Only problem is, my backup is from 15 Dec, when I was still on another ROM. I haven't made a new backup, because well.. I wasn't doing anything dangerous.

SO, anybody on XDA that can help me? Is there any way to change that DPI through recovery? Or do you guys think that's not the problem?

Really pissed..... tommorow I have an exam :(

Tnx for any help

Edit: wtf it's working again. Im happy!.. and freaking confused o___O
[Galaxy S II Q&A, Help & Troubleshooting] mehms:
Hi,

I followed the instructions by OP but I just couldn't get the phone into Recovery Mode. I was trying to root the phone via ODIN but it got stuck in bootloop while rebooting.

I've tried to flash numerous ROMs and also Kernel by ODIN but it's still stuck in bootloop.

I'm from Singapore. Which Stock ROM should I try?

I hope someone could help me out.

ALSO HERE IS THE ERROR FROM ODIN WHEN I TRIED VILLAINROM 1.1:

<OSM> VillainROM-SGS2-V1.1.tar.md5 is valid.

<OSM> Checking MD5 finished Sucessfully..

<OSM> Leave CS..

<ID:0/006> Odin v.3 engine (ID:6)..

<ID:0/006> File analysis..

<ID:0/006> SetupConnection..

<ID:0/006> Initialzation..

<ID:0/006> Get PIT for mapping..

<ID:0/006> Firmware update start..

<ID:0/006> factoryfs.img

<ID:0/006> NAND Write Start!!

<ID:0/006>

<ID:0/006> Complete(Write) operation failed.

<OSM> All threads completed. (succeed 0 / failed 1)

What do I do?
[Galaxy S II Q&A, Help & Troubleshooting] Bart79:
USB not working AND Boot loop

Hey there. I've got a challenge for someone really brave.

I haven't 'just' got the standard boot loop, I also have a non-functioning usb. It doesn't even charge the battery.

I can enter both download mode (useless without USB) and recovery mode and the SD-card is visible in recovery mode. But i haven't a clue as to if there is a way to go from there. I'm hoping the 'apply update from sdcard' might do the trick.

Any help would be really really appreciated. Tried going to the store, but they were being a pain in the rear even without knowing I'd flashed a custom rom.

Cheers!
[Galaxy S II Q&A, Help & Troubleshooting] CamoGeko:
What message do you get when you plug the phone into Odin while your phone is in download mode?

Sent from Origin Unknown.......
[Galaxy S II Q&A, Help & Troubleshooting] Bart79:
All I get is the windows message "Installing "Device driver installation unsuccesfull" and "USB Device Not Recognized. One of the USB devices attakced to this computer has malfuntioned, and Windows does not recognize it. For assistance in solving this problem, click this message".

I Tried installing with ODIN and HIEMDALL, but windows itself (tried four pc's) is unable to recognize what i'm plugging into the system.

As the device can't even recognize a charger (no effect whatsoever now that I have a bootloop, but it did charge before the bootloop started, as long as I had the device plugged into the charger during and after boot up.)
[Galaxy S II Q&A, Help & Troubleshooting] steelzzz:
Saved me headaches, wish i knew about this earlier, tyvm
[Galaxy S II Q&A, Help & Troubleshooting] asfpf:
If you can use CWM:

1. You need to use the external sdcard to copy the needed files over (ROM).

2. In CWM menu: full wipe... full wipe... full wipe!

2. Apply zip from external sdcard should to the trick.

I always left an usable good ROM in my internal and external sdcard in order to save me from this kind of trouble. I already had a couple of boot loops and solved them all doing full wipes and appling my recue ROM again. Just so you know, my savior is CheckRomHD 4.
[Galaxy S II Q&A, Help & Troubleshooting] Bart79:
Yeah, CWM sure would be the best option. Thanks for the advice.

Doesn't work though. I was one of the early birds with a SGSII and had my Custom Rom installed before CWM was an option. So all I have is the standard Samsung menu. Wich doesn't seem to recognize zipfiles or .tar
[Galaxy S II Q&A, Help & Troubleshooting] CamoGeko:
Tried doing a factory reset from within e3 recovery?

Also mate, as far as I can tell you only option is to get your USB working to be able to restore anything or flash anything. Try using different USB cables.
[Galaxy S II Q&A, Help & Troubleshooting] psyche_galaxys2:
gr8!

i thought it was the end of a great phone :) ty !
[Galaxy S II Q&A, Help & Troubleshooting] murphalicous:
This fixed my seemingly bricked phone! Thank you for figuring this out and posting. Thank you thank you thank you!
[Galaxy S II Q&A, Help & Troubleshooting] rfmalta:
Thanks! helped a lot!
[Galaxy S II Q&A, Help & Troubleshooting] Jay_B:
Hi Guys,

My 1st post here...

Well here's how I landed up to boot loop..

Wanted to install Titanium Back and since my S2 (India) was on the Official Rom was unable to do it. So thought will root it and then install it. Have used Odin a couple to times to update firmware for my friends so thought the process of rooting is also simple...

Anyways started following :

And ZAPPPP!!! the phone did reboot but with the yellow triangle at the bottom..

the kernel I downloaded was : CF-Root-SGS2_XW_XEF_KJ2-v5.0-CWM5

Now after reading 30 pages of this thread and trying a few ROM (12 times) and flashing with VillainROM-SGS2-V1.1.tar 2 times I am still not able to boot my phone.

I am able to go into downloading mode and was happy to know its not bricked but unable to go to restore (Volume Up + Home + Power) does not work...

Now I am new to Android and not sure what my Kernel was or the details Just remember that Android version I last updated via kies was 2.3.6.(Iam from INDIA) Not sure of the other details..

Can you guys please help been searching for 24hrs and landed up on this thread and was reading and trying to get my phone back to normal but finally after so many tries gave up and though will ask...
[Galaxy S II Q&A, Help & Troubleshooting] noobgalaxys2user:
what is the stock firmware files for SG SII GT-i9100? this is open line so I dont know what particular files to download.

Some info. about my phone.

2.6.35.7 KI4

2.3.4 Gingerbread
[Galaxy S II Q&A, Help & Troubleshooting] rickeh82:
you know, sometimes even corrosion on or in the charge port area can cause a bootloop.

i have experienced this issue first hand ;) and if you did have some success hunting down and finding some corrosion on or in your charge port area i know of a nice inexpensive trick im sure some of you already known or heard of doing.

all youll need is:

1. a blow dryer.

2. a can of contact cleaner

3. a nylon brush or an old tooth brush with hard bristles.

prepare the charge port by spraying some contact cleaner on the corroded area and begin to brush. do so untill most of the heavy corrosion is gone. (careful not to brush off the charge port contacts)

next, continue to clean the corroded area in this order. contact cleaner, heat with blow dryer for about a minute or two, then brush. do this about 3 times.

the final touch should end with a minute or two of blow dryer heat and when the board is warm enough you can put the phone back together again for testing :).

this is just a little tip i learned from experience if all your software techniques fail.

Good luck.
[Galaxy S II Q&A, Help & Troubleshooting] charlie274:
Thanks for the guide :D
[Galaxy S II Q&A, Help & Troubleshooting] Xerovius:
I wiped the data and the cache in cwm but when I reboot it loads the boot animation and still bootloops. I thought wiping meant wiping the ROM/OS from the phone... Is this normal?
[Galaxy S II Q&A, Help & Troubleshooting] noobgalaxys2user:
@ Xerovius: hey buddy what rom did you use? I was able to successfully fix my SII with villainROM 2.5 try to wipe data and cache again.
[Galaxy S II Q&A, Help & Troubleshooting] Xerovius:
Hey, I was using the latest CM9 experimental build. I've tried to wipe it 3 times but the ROM still loads up to the bootloop. Thanks for the response :).

Also, can someone tell me what exactly "ODIN format" is? Is it just .zip?
[Galaxy S II Q&A, Help & Troubleshooting] RThW:
Hello,

I've been trying to install CM9 in a galaxy S2 and each time I try to do so I get into a bootloop.

The phone is rooted and with CWMrecovery installed, I wiped data and cache before applying...

It's a European phone, and I got the ROM from the official CM9 thread in this web.

Any ideas will be appreciated.

Thanks beforehand.

EDIT: Nevermind, I managed to install it.
[Galaxy S II Q&A, Help & Troubleshooting] radheshkrishnaps:
my phone not entering to recovery mode

my fone is not entering the recovery mode it can go to download mode only.

when it switch on after the first page with yellow triangle(rooted phone) ..then it just shows a glimpse of next page... like opening a package and ask for confirming password.. but i dont knw password....

what to do now? can anyone help?
[Galaxy S II Q&A, Help & Troubleshooting] noobgalaxys2user:
@ Xerovius: from my understanding odin format means the file is in .tar, .md5 or .smd extension
[Galaxy S II Q&A, Help & Troubleshooting] CamoGeko:
Hmm...try flashing the latest CF-Root LPB kernel first in ODIN, then boot into recovery and follow CM9 installation instructions to the last word in CM9 Dev thread. Should work fine.

This is all I had to do:

Boot into recovery.

Flash CM9

Flash Gapps

Wipe Data (factory reset)

Reboot

Worked fine!

:)
[Galaxy S II Q&A, Help & Troubleshooting] Amartier:
Hello

I recently tried to root my Bell Samsung Galaxy S II with a CF-Root file, but I was stupid and never used the right one. This was done through Odin 1.85. Of course it never worked, and now I can't boot up properly. I spent the whole day trying to fix things, hwoever flashing back to a stock rom wasn't much of an option because of MultiUpload being down. I found a stock Bell .tar ROM though somewhere, and flashed it along with the stock Bell kernel. This never worked either though... After it restarted, the phone booted into Android system recovery <3e>, and then a bunch of lines similar to "mount failed" appeared. I would reboot, and I'd be stuck at the splash screen again. What can I do? I appreciate your help. I also can;t do anything from the recovery because all those "mount failed" lines appear. I'm at binary count 4, and the computer won't recognize my phone in Download Mode.
[Galaxy S II Q&A, Help & Troubleshooting] bahmonkeys:
"the computer won't recognize my phone in Download Mode" Try using a different computer that you didn't connect your phone too. Make sure you have a working internet connection. If you don't have another computer. I presume you are running windows?! Go to device manager on your computer connect your phone via usb cable in download mode. You should see your phone pop up in device manager uninstall it restart your computer and connect via usb cable again in download mode it will download the drivers automatically. If you don't see anything pop up. I would try this on another computer. This happened to me a few times. Then flash a kernel as you would normally because you installed a wrong CF-Root file check your baseband when you get your phone working you may have to flash your modem
[Galaxy S II Q&A, Help & Troubleshooting] Amartier:
Thanks for the response. I have two other computers, but they're both Macs and I don't know how to see all connected devices on my Macs since they only display the ones with storage connected. My phone doesn't get recognized by the computer at all, I even tried reinstalling the Samsung Kies drivers. The phone isn't seen through the device manager either, so I can't do the other thing you mentioned.
[Galaxy S II Q&A, Help & Troubleshooting] bahmonkeys:
Is there any chance you can get on a Windows PC and try this? Im not too familiar with MAC. The Kies drivers dont really have anything to do with the drivers you need to download in "download mode". Your phone can get into download mode so your phone can be repaired. My advice would be find a Windows PC. Anything that i could send you would be for Windows
[Galaxy S II Q&A, Help & Troubleshooting] nio_insane:
Hahahaha this was my first OMG OMG OMG! I ****** my phone!

don't panic use "SEARCH FUNCTION" and Voila
[Galaxy S II Q&A, Help & Troubleshooting] CtlAltDefeat:
Nice, got a bootloop, was about to start a new thread, but saw this. Now fixed it :).
[Galaxy S II Q&A, Help & Troubleshooting] ahm_salloum:
Thx

Really thanx
[Galaxy S II Q&A, Help & Troubleshooting] stuedub:
Sorry. Wrong phone. My mistake.
[Galaxy S II Q&A, Help & Troubleshooting] trigger85:
thanks a lot! you have been a great help!
[Galaxy S II Q&A, Help & Troubleshooting] chebba:
Odin Complete (write) operation failed

I started off with a stock GT-I9100 LKJOPS, 2.3.3

PDA: I9100XWKG1

PHONE:I9100XXKF3

CSC:I9100OPSKG1

Installed Kies

I let it upgrade the phone 2.3.6. All ok

PDA: KK2

PHONE:KI4

CSC:KK1 (OPS)

Successfully rooted with superoneclick and CF-Root-SGS2_XW_XEN_KK2-v5.0-CWM5.zip

I didn't install a stock kernel as not available at the moment.

Decided to flash another version using Odin and I9100XWKK2_I9100XSAKK1_I9100XXKI4_HOME.tar.md5 and Odin failed

Since then I have tried to flash a few different versions. I get the same response "Complete(Write) operation failed".

Odin looks like this:

<ID:0/023> Added!!

<OSM> Enter CS for MD5..

<OSM> Check MD5.. Do not unplug the cable..

<OSM> Please wait..

<OSM> I9100XWKK2_I9100XSAKK1_I9100XXKI4_HOME.tar.md5 is valid.

<OSM> I9100XWKK2_I9100XSAKK1_I9100XXKI4_HOME.tar.md5 is valid.

<OSM> I9100XWKK2_I9100XSAKK1_I9100XXKI4_HOME.tar.md5 is valid.

<OSM> Checking MD5 finished Sucessfully..

<OSM> Leave CS..

<ID:0/023> Odin v.3 engine (ID:23)..

<ID:0/023> File analysis..

<ID:0/023> SetupConnection..

<ID:0/023> Initialzation..

<ID:0/023> Get PIT for mapping..

<ID:0/023> Firmware update start..

<ID:0/023> boot.bin

<ID:0/023> NAND Write Start!!

<ID:0/023> cache.img

<ID:0/023> factoryfs.img

<ID:0/023> hidden.img

<ID:0/023> modem.bin

<ID:0/023> param.lfs

<ID:0/023> Sbl.bin

<ID:0/023> zImage

<ID:0/023> boot.bin

<ID:0/023> cache.img

<ID:0/023> factoryfs.img

<ID:0/023> hidden.img

<ID:0/023> modem.bin

<ID:0/023> param.lfs

<ID:0/023> Sbl.bin

<ID:0/023> zImage

<ID:0/023> boot.bin

<ID:0/023> Transmission Complete..

<ID:0/023> Now Writing.. Please wait about 2 minutes

<ID:0/023>

<ID:0/023> Receive Response form LOKE

<ID:0/023> Complete(Write) operation failed.

<OSM> All threads completed. (succeed 0 / failed 1)

I've searched high and low, tried restarting the computer, diffrent USB ports, ensured all kies processes are terminated but no joy. I'm stuck with "Firmware upgrade encountered an issue" screen and Kies can't connect at all, or download mode but can't get a successful flash. I can't get into recovery mode.

Any guidance or ideas appreciated.

UPDATE: All fixed. Found a thread called "Fix an unflashable or soft bricked GSII" http://xdaforums.com/showthread.php?t=1457458

Flashed just a kernel and I'm ok again.
[Galaxy S II Q&A, Help & Troubleshooting] thehatedone:
My boot comes after it displays a message called "unfortunately xxxxxxxxx has stopped working""

what to do?
[Galaxy S II Q&A, Help & Troubleshooting] :
In my case, I was trying to install MIUI (2.2.10 from miuiandroid.com) and always ended in a bootloop. I previoulsy had a Motorola Defy and never had any problems with custom ROMs. Finally, my solution for the SGS2 was the standard procedure adding one little thing:

-Wipe data/factory reset

-Wipe cache partition

-Wipe dalvik cache

-Format system (optional step)

*** FIX PERMISSIONS (from the CWM advanced menu) ***

-Install zip from sdcard (just once)

-Reboot system now

That was the way I managed to get MIUI running with no problems.

Hope that helps somebody.
[Galaxy S II Q&A, Help & Troubleshooting] hshokouhi:
I had that problem, I flashed to stock ROM and I didn't have any problem for 2 months so I didn't realized that I lost recovery mode untill four weeks ago, my phone just went on boot loop without any reason, I tried to reflash but it didnt help, I didn't have access to recovery so I couldn't wipe the data, and finally I sent my phone to repair centre and they told me for some strange reason they need to rewrite the IMEI number and they left me without phone for 3 weeks :(
[Galaxy S II Q&A, Help & Troubleshooting] EM|NEM:
GS2

hey guys,

my S2 is stuck in bootloop and nothing i flash via odin seems to have any effect on it. I tried stock ROM XXKI3 and i even tried the VillainROM 1.1 and they both flash successfully but the phone just restarts after the ODIN procedure and gets stuck in bootloop again. Even tried all the steps on this thread: http://xdaforums.com/showthread.php?t=1457458

Its like the phone doesnt really recieve anything ODIN is flashing it. Its in the same condition it was when this started. Only have stock recovery and i even tried flashing CWM recovery but it still boots up the stock recovery.

Any help would be appreciated, thanks.
[Galaxy S II Q&A, Help & Troubleshooting] ZACQ8:
FROM SAM-Based rom to AOSP ROM

Hi,

I hope this is the proper thread to clear my following doubt

For a long time I am thinking to test a AOSP rom on my SGS2 (Cyan/MIUI) but the thing which is stopping me is, I remember somewhere I have read that, we have to take care of something...(I dont really remember what it was) before moving to a AOSP rom from Samsung based rom. Is there anything really to be taken care of?

Kindly help me out clearing my doubt, will I be able to restore my CWM-nandroid back up of sam-based rom from the CWM of the AOSP rom. and vice versa?

Regards
[Galaxy S II Q&A, Help & Troubleshooting] CamoGeko:
Hmmm...are you sure you're flashing stuff while in Download Mode?

What kind of messages is ODIN giving you?

Don't be too worried about it. You can always restore backup if something goes wrong.

Sometimes you have to flash the Cyanogen zip twice or three times in recovery to make it stick. That's about it though.

Logged using an SGS2 type droid while floating in CheckROM quadrant on a research mission.......
[Galaxy S II Q&A, Help & Troubleshooting] NickBeswick:
Boot Loop Problem

Hi

I'be got into a bit of a pickle. I tried to root my phone but now it won't boot past the logo with the yellow triange.

I can't boot into recover but can boot into download.

I can flash various kernals but just get the same problem.

When I try and flash a full firmware I get the following error in Odin :

<ID:0/004> Added!!

<OSM> Enter CS for MD5..

<OSM> Check MD5.. Do not unplug the cable..

<OSM> Please wait..

<OSM> I9100_CODE_I9100XXLPB_CL99600_REV02_user_low_ship.tar.md5 is valid.

<OSM> MODEM_I9100XXLPB_REV_02_CL1101286.tar.md5 is valid.

<OSM> GT-I9100-MULTI-CSC-OXXLP5_RST.tar.md5 is valid.

<OSM> Checking MD5 finished Sucessfully..

<OSM> Leave CS..

<ID:0/004> Odin v.3 engine (ID:4)..

<ID:0/004> File analysis..

<ID:0/004> SetupConnection..

<ID:0/004> Initialzation..

<ID:0/004> Get PIT for mapping..

<ID:0/004> Firmware update start..

<ID:0/004> boot.bin

<ID:0/004> NAND Write Start!!

<ID:0/004>

<ID:0/004> Complete(Write) operation failed.

<OSM> All threads completed. (succeed 0 / failed 1)

Following this after a reboot I get a fireware update error and have to flash the kernal again.

I've looked at loads of sites and tried a lot of things. Your advise would be appreciated

Thanks, Nick
[Galaxy S II Q&A, Help & Troubleshooting] kondronaute:
no chance for me

I have a GS2 which gets hot and turns off

if u restar the phone it goes in a bootloop u must remove the battery 1 or 2 hours then restart the phone before it boot again...
[Galaxy S II Q&A, Help & Troubleshooting] CamoGeko:
Sounds like a hardware issue to me, maybe you should send your device in for servicing...
[Galaxy S II Q&A, Help & Troubleshooting] theyllib:
I got stuck in the boot-loop via chainfire3d. Installed the plugin and now my phone just says "Rethink Possible" over and over and over.. So I found this thread, which then dashed my hopes of keeping my data. So I decided fine, ill lose my stuff and keep my phone.. whatever.

NOW the issue is, it wont go into recovery mode.. I hold Volume up+power+home and it powers on, says samsung, then glowing blue samsung, then the screen goes black and it gives me short bursts of vibrate.. Until I let go, and then it tries to boot normally again.. Any help would be amazing. Thanks.

---------- Post added at 06:32 AM ---------- Previous post was at 05:55 AM ----------

Figured it out myself.. I was holding volume button and power for too long. Must release after white Samsung text is displayed.
[Galaxy S II Q&A, Help & Troubleshooting] Mehmet75:
Yes I ,too :)
[Galaxy S II Q&A, Help & Troubleshooting] damindra:
I got a boot loop by installing a theme but it crashed the rom! OOPS!

Had to reflash with standard Samsung Kernel using ODIN then re-rooted and put a custom rom back on!

Have tried a few custom roms, so far Omega, Resurrection and will try shortly Star ROM HD v1.0 (may leave it til tomorrow, getting late for me)

Installed the Beats Audio and has made the sound better through my 18bucks Sony inear buds!
[Galaxy S II Q&A, Help & Troubleshooting] jammybstard:
Stock ROM for a UK H3G (3 Network) SGS2

I'm glad I've found this thread.

I have a boot-loop since my phone tried to update over Wifi. I dont know what went wrong!

I cant find my stock ROM though

in recovery the yellow text at the bottom says:

--Coping media files...

Successfully copied media files.

# MANUAL MODE #

-- Updating application...

Successfully updated application.

-- Appling Multi-CSC...

Installing Multi-CSC

Can't access to '/system/csc/H3G/system/'.

Successfully applied multi-CSC.

Can anyone help me find my stock ROM?

The phone is on the UK H3G (3 Network)

Any help apriciated.