[Q] Reboot automatically

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Hi Guys , I have a problem with my SGS II , it reboots itself automatically , and I notice that the problem started since I updated to firmware 2.3.4 XWKI4 via Kies ( before 2.3.3 ) and never been rooted , and I don't want to root it just yet , so anyone have any idea what causes this problem and any solution ? please share , thank you .

If you want to stay on stock maybe try factory resetting.

Sent from my GT-I9100 using XDA Premium App

Have you got an SD card on the phone with apps on it?

Are you useing Dolphin Browser?

Yes I have 8GB micro SD card and I moves some apps to it , no I use only stock browser .

flash stock with odin again

Originally Posted by AndyCosmos

Yes I have 8GB micro SD card and I moves some apps to it , no I use only stock browser .

-Ok, first try to move back your apps to the phone and test it.
-If it keeps rebooting just take out your SD card and keep the testing.

It will solove your problem for sure!

Thank you I will try to move back the apps to my phone and will see what will happen , will get back to you if anything improve

it can boot randomly when :
1. GSM signal is weak
2. Simcard is damaged or too old
3. Battery is too hot
4. Some APPS are moved to SD card (it allows you to move it, but actually, apps doesnt like it)
5. External SD card is slow, 4 or below classes, or too small sizes of sd cards (2GB-4GB) or too full of external sd card, ord sd card, or internal memory, etc. (shorly not enough memory
6. RAM!!!!!!, if more then 780mb ....,
7. too many WIDGETS...
8. too long standby

GUYS these are the main reasons, if you have all ok with above list, then you may have problems with OS, then flash and install back, or maybe HARDWARE PROBLEM (ram,cpu etc.)

GOOD LUCK!!!

Hi Thank you for your advice , I've tried moving all apps to phone from SD an everything's work well no more auto reboot , Thank you