abill_uk, thank you for you response. I will check the connections again, however, I do not believe that it will help. 1.) Phone does charge, when plugged into wall charger while booting, so GND and +5V are ok 2.) If booting unplugged, I can transfer files in mass storage mode, so Data+ and Data- are ok. Thats why, I would think it is something more complicated. Sorry, if I miss something obvious.