Doro 6520

Doro 6520

I can't start my Doro 6520 Proprietary OS

Cause 3 of 6: Your phone is locked to Vodafone

If your phone is locked to Vodafone and you try to use a SIM from another operator, the screen will tell that your SIM is invalid.

Solution: To use a SIM from another operator, you need to get a Network Unlock Code to have your phone unlocked.

Doro 6520