How to reset xperia u (hard factory reset) forgot the password. Please help

[Ashutosh_Vaish]

Now i cant access my phone because my phone locked and it has no option for reseting it via gmail account password. Moreover it is nott connected to 3g or wifi network. I have made a backup of it and wanted to hard factory reset.Please somebody tell me the procedure. Thanks.

[_alexdon_]

Sony update service.

[Cherryb420]

This worked for me but I had to ad another *#*

[bucephalus]

with an extra #* at the end. My bacon was saved