hi

i wanted to know how do i identify which c905 phone i have

The C905a is Triband HSDPA+UMTS
850/1900/2100

C905i has UMTS
2100

http://www.sonyericsson.com/cws/corp...fication/c905a

http://www.sonyericsson.com/cws/corp...ification/c905

thanks in advance