how to change my device's registered phone number

Avast Mobile Apps Avast Anti-Theft for Android
1

just set up my avast security and entered my old phone number instead of my current one. Dummy move I know, but I can’t seem to find where to change it? Help please, thnx…

2

What number?

  1. Your mobile phone number at my.avast.com ?
  2. Your recovery pin number (see Configurations > Recovery PIN option).
  3. Anti-Theft friends numbers (remote control)? (avast! > Anti-Theft > Friends).
3

you can just go to my.avast.com there is a link on the device detail page where you can change the phone number.