Screen-software problems

[pau_c_90_hotmai]

My cell phone fell out yesterday, and now only comes on the screen, but it is blank and does not access to anything else. Is a sony xperiaU, I bought it couple of months ago, and it seems that the screen does not have any damage. What do I do?

[Uliwooly]

you have to take it to a Sony repair center, perhaps neither the LCD and/or the digitizer are affected BUT perhaps there is hardware damage somewhere else, it could be as simple as a lose ribbon, or it could be a cracked motherboard.