AT&T Samsung Galaxy S II stuck on Samsung Logo

[truestar]

Hi There,

My Galaxy S II stuck on Samsung Logo, tried recovery mode, it doesn't work either. It was working fine, and this happened all of a sudden.

Thanks for your help.

 

[creepyncrawly]

Was the phone running stock firmware, or was it customized?

Most likely you need to reinstall the latest stock firmware. Please let us know your experience level working with phones, and we can provide some advice and/or guidance.