doesn´t conect to computers

[atef2010us]

i cant connect my experia u to computer always have to wait and have messege my(null) is conected i have already restart my phone and my laptop several time but without any change please support

i have windows8 with non upgraded phone

[Uliwooly]

Check this thread

http://talk.sonymobile.com/t5/PC-Mac-Software/PC-suddenly-not-recognising-Xperia-Go/m-p/375415/highl...