Galaxy s3 sghI747, speaker not working or video.

[AC Question]

Guys please help I just flashed I747UCUEMJB over I747UCDLK3 on my galaxy s3 at&t sghI747. After that my speakers stopped working and no video on the web or YouTube work. I don't khiw what happened but please help.

 

[souvikultimate]

Read the review of the ROM which you want to install. There might be some bug in that rom or you have failed to root your phone. Or your speakers have gone.