Share your experience!
I forgot my unlock pattern and after trying to sign in with my google account, the phone said invalid. I tried to sign in many times but failed. So I turned my phone off, and then on again but it would start. The "XPERIA" logo would flash on the screen and after a while the screen would go black, and again the "xperia" would appear. Can anyone help me please?
Try to repair your phone using SUS or PCC.
SUS: http://www.sonymobile.com/gb/tools/update-service/
PCC: http://www.sonymobile.com/gb/tools/pc-companion/