Thanks Meter 2,361
Join Date: Jun 2009
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My Xperia Pro have the same issue . Like when unlock , no screen (black) ,
The issue I found out is having something to do with my back cover
ie. If I remove the cover and reboot , and then unlock /lock , no problem, As soon as i put the back cover , it unlocks with black screen , I was sure no kernel or fw was the reason , as i have been through diff kernels and fws /roms without an issue like this , and as soon as the black screen shows and you try to restart it wont even show the logo , so i was damn sure ,its no kernel issue , Please check this method , i will try to find the exact issue why the back cover is making this.
Update: Found out that the push made by back cover with the battery (which basically may be jamming the strip or something inside) is making the problem , It may have more to it than this ,anyway this is my phone's problem