Hi all,

Today i replaced my iphone's lcd screen, all went fine. then i turned my iphone on and boom, black screen.
I tried everything like
- Clean all the connectors
- recheck all the connectors
- hard restart
- restored software
- even took out the battery and putted it back in

Now, the weirdest thing is, if i boot the iphone without a sim card in it, the iphone would boot with a black screen, but if i insert the sim card while its still on the screen turns white(after it slept and i clicked home again)

I have no idea what to do now, so any help if very very welcome.