Nokia Lumia 635 User Manual

Open People > Tap and hold on the contact you want to delete > tap Delete. Hope that helps!

Hi pari. Please contact Microsoft to get the activation code for your phone.

Visit Microsoft login page (link) and click "Can’t access your account?". Hope that helps!

Hi Philipri. Try to restart your phone first. Maybe you're not getting network signal or you don't have enough credits on your account balance.

Hi Roger. If you want to unlock your phone, you need to contact the carrier it is locked with. They will sell you an unlocking code for your phone.

HI Michal. To change account, you will have to factory reset the phone.