Galaxy s2 bootlop - Galaxy S II Q&A, Help & Troubleshooting

I flashed the stock firmware of galaxy s2 and went into a bootlop, the solution to get the galaxy s2 alive was to factory reset and clear cache with stock recovery. The question is why do I get into bootlop, because I have forgot to turn on debugging or because I did not do a full wipe with cmw before flashing firmware with odin? I flashed from Rom with android 4.0.4 to stock android 4.0.3
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josefmawas said:
I flashed the stock firmware of galaxy s2 and went into a bootlop, the solution to get the galaxy s2 alive was to factory reset and clear cache with stock recovery. The question is why do I get into bootlop, because I have forgot to turn on debugging or because I did not do a full wipe with cmw before flashing firmware with odin? I flashed from Rom with android 4.0.4 to stock android 4.0.3
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Click to expand...
Click to collapse
Yeah, because you did not do full wipe in CWM recovery before flashing via Odin.
Swyped from my Samsung Galaxy SII

Related

Help~ how to unroot S2 I9100G

Since it have official update ics, but i think my phone had root so i cant install it. Anyone pls provide a solution.. Many thanks
Version : 2.3.6
Base Version : I9100GDKJ2
Kernel Version 2.6.35.7-g7b57e17-dirty-Lucifr_1.60uv-200Mhz
Flash your stock 2.3.6 xwlc2 stock rom simply via odin. Or if u want a faster method, just go to privacy and hit factory reset. It will be as good as new. Backup your data before doing it though as you will loose data.
Thank if i helped mate. Hf
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-.- juz flash the official stock rom via odin dude
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Do i need pit file to flash i9100g stock rom?
tom cats jr said:
Do i need pit file to flash i9100g stock rom?
Click to expand...
Click to collapse
1. No
2. Just flash the official update via Odin. Download the firmware on sammobile: www.sammobile.com/firmware/
Swyped from my Galaxy SII

cant flash any firmware even stock firmware i9100g

I gt a i9100g and yesterday i updated my i9100g to ics with superatmos v1.2 but wifi problem so i have downgraded to 2.3.6 dzkl3 firmware. after i downgrade i would like to root but odin stuck at setup connection and wont proceed next step. so that i flash again dzkl3 firmware. after i flash again firmware icant root or flash stock firmware even i format cache or format data... odin stuck at setup connection. PLEASE HELP ME ><
Are I able to get into recovery ?
If yes, perform format system and data...try to flash stock again
I did that for N times but not working
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Help
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Fixed. Remember to close the software for the old phone and close kies. The sony pc companion is conflicting with the samsung so I close it and odin start operating again.
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Kernel Flashing Problem

My Device: i9100
Official ICS 4.0.3 XXLPJ
Rooted via CF Root Kernel
Now the problem is that when i install any Kernel like i tried Siyah and slide2wake
My phone dont start like a soft brick...
Then to make it work i reinstalled CF Root Kernel.. Then phone started but the Kernel i installed before not installed...
So Please tell me what is the Problem and how i can get rid of it?
Please...
Thanks
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Wipe after kernel flash or flash entire rom.
i9.0.1.3k galaxy imperator
Have you tried j stalling by Odin?
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SirKunon said:
Wipe after kernel flash or flash entire rom.
i9.0.1.3k galaxy imperator
Click to expand...
Click to collapse
Tried wiping and flashing entire rom...
Wats i9.0.1.3k blah blah??
noscentsbrad said:
Have you tried j stalling by Odin?
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Click to expand...
Click to collapse
Wats that??
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Omaxe said:
My Device: i9100
Official ICS 4.0.3 XXLPJ
Rooted via CF Root Kernel
Now the problem is that when i install any Kernel like i tried Siyah and slide2wake
My phone dont start like a soft brick...
Then to make it work i reinstalled CF Root Kernel.. Then phone started but the Kernel i installed before not installed...
So Please tell me what is the Problem and how i can get rid of it?
Please...
Thanks
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Click to expand...
Click to collapse
Because after flashing a new custom kernel, it's recommended to:
-Wipe cache partition
-wipe dalvik cache
Before rebooting the phone
Problem SOLVED
Swyped from my Galaxy SII
Jokesy said:
Because after flashing a new custom kernel, it's recommended to:
-Wipe cache partition
-wipe dalvik cache
Before rebooting the phone
Problem SOLVED
Swyped from my Galaxy SII
Click to expand...
Click to collapse
Thanx for advice bro but still no luck..
Tried thrice
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Omaxe said:
Thanx for advice bro but still no luck..
Tried thrice
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Click to expand...
Click to collapse
-Flash the latest Siyah kernel (4.1.1 zip) via CWM recovery
-wipe dalvik cache
-wipe cache partition
-reboot phone
Swyped from my Galaxy SII
Jokesy said:
-Flash the latest Siyah kernel (4.1.1 zip) via CWM recovery
-wipe dalvik cache
-wipe cache partition
-reboot phone
Swyped from my Galaxy SII
Click to expand...
Click to collapse
Aaaaaawww didn't work
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Omaxe said:
Aaaaaawww didn't work
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Click to expand...
Click to collapse
then do factory reset /wipe data
Swyped from my Galaxy SII
Use kernel cleaning script before flashing and/or format system partition and flash kernel just after format (still in cwm without rebooting) than wipe cache and dalvik and reboot.
It could be rom issue, not kernel related. Or even faulty nand. Have you got any errors when enter cwm?
--
i9.0.1.3k galaxy imperator
SirKunon said:
Use kernel cleaning script before flashing and/or format system partition and flash kernel just after format (still in cwm without rebooting) than wipe cache and dalvik and reboot.
It could be rom issue, not kernel related. Or even faulty nand. Have you got any errors when enter cwm?
--
i9.0.1.3k galaxy imperator
Click to expand...
Click to collapse
Not a single error in cwm recovery .. Using official ics 4.0.3 XXLPJ
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Firmware upgrade encountered issue my phone not boot :(

I tried to update by odin by this happend and now not booting only I can go to download mod
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Okay.....that's a lot of info for my mind to process.
I'ma go to sleep now and maybe tomorrow I can guess your device model, what ROM you were on, what you've tried to flash and how.....
Sent from the little guy
I flashed syah kernel but icant go to recovery mode
Only download mod
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gastonw said:
Okay.....that's a lot of info for my mind to process.
I'ma go to sleep now and maybe tomorrow I can guess your device model, what ROM you were on, what you've tried to flash and how.....
Sent from the little guy
Click to expand...
Click to collapse
i was on stock ics and tried to update it to jb ,, am on s2 i9100
alandd86 said:
i was on stock ics and tried to update it to jb ,, am on s2 i9100
Click to expand...
Click to collapse
okay then download the stock jb rom from sammobile.com
go to download mode and flash the rom.
do not flash any kernel yet, just go to the stock 3e recovery and do a factory reset,wipe cache and dalvik and then reboot your phone.
After this your phone must be okay!..

Stuck on reboot

After updating to jelly bean 4.1.2 my samsung galaxy S2 GT I9100 is rebooting again and again..
I flashed my mobile again and i also tried to hard reset but it still rebooting...
Please help me..
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m.anwar said:
After updating to jelly bean 4.1.2 my samsung galaxy S2 GT I9100 is rebooting again and again..
I flashed my mobile again and i also tried to hard reset but it still rebooting...
Please help me..
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Click to expand...
Click to collapse
Might help you --> http://forum.xda-developers.com/galaxy-s2/help/frequently-questions-t2156592
m.anwar said:
After updating to jelly bean 4.1.2 my samsung galaxy S2 GT I9100 is rebooting again and again..
I flashed my mobile again and i also tried to hard reset but it still rebooting...
Please help me..
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Click to expand...
Click to collapse
You could just do a flash of a stock firmware you can download that here:
http://forum.xda-developers.com/galaxy-s2/general/stock-official-firmwares-i9100xwlsm-t2226063
or you can search for one that fits your taste (be it JB or ICS) on google.
Use odin to flash the firmware you downloaded. You can snoop around the forums regarding on how to use odin to flash a stock firmware.
I tried this stock firmware with odin (I9100XWLSD_I9100OJVLS6_I9100XXLS8_HOME.tar)...also tried factory reset,clear cache and delvik cache..but nothing worked mobile is still rebooting..
Help me please..
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Hopper8's 'Odin troubleshooting' thread stickied in General, find it, download the 3 part firmware linked to in the thread, flash it with Odin in download mode (this will wipe your phone). Then either flash stock firmware for country/carrier if you want to stay stock, or re-root phone & restore nandroid, or flash whatever custom rom/kernel you want to run.

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