Samsung Galaxy S3 hanging samsung logo

flash with official rom

First download the Odin
i used odin 1.85

link

http://www.4shared.com/rar/QyJGIF8J/odin_185.html

you need to download i9300 official firmware version 4.1.2

http://www.hotfile.com/dl/250019419/...2_INU.zip.html

extact this file

and then

Put ur mobile in download mode

First shut down your device, then power on by simultaneously pressing the power button, home button and volume down key. Now you will see download mode and you will be asked if you want to cancel or continue. Press volume up to continue or volume down to cancel and reboot.

click up to continue

open odin

Attachment 32940

select PDA
Attachment 32941

plug ur usb
the drivers will detect
it shows com port
like as this pic
Attachment 32942

after that

click start button in odin
Attachment 32943

finally its flashing is finised

Attachment 32944

after this mobile is upgrading after that
pls remove ur battery and put again
try hardreset
combination of the keys is

Turn the phone off.
Press and hold VOLUME UP and Home(center) button
Press Power until the phone vibrate
Wait until you see the Android logo then release all the buttons.
Select Wipe data/Factory reset with VOLUME DOWN, press Power (right hand-side)
Select YES -- delete all user data with VOLUME DOWN and then press Power
After format, press Power again to reboot phone. (select reboot system now)

Rocky

Don't forgot to say thanks

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