IMEI considered wrong on the website mysupport

[sumanggala]

I want to register for the xperia c3 dual to mysupport, but all three are asked to enter IMEI, always appear IMEI is invalid. please help

[Thommo · Accepted solution]

When you enter the number do you enter any other symbols that appear on your phone also seen on the little white card

http://support.sonymobile.com/in/xperiac3dual/userguide/IMEI-number/