With the sim in my Doro 621 it says insert sim, why?

[AC Question]

with sim in my doro 621 it says insert sim

new phone , phone sim free

 

[Rukbat]

Re: with sim in my doro 621 it says insert sim

First bring the phone to your carrier and let them make sure that the SIM card isn't bad.

If the card is good, bring the phone back, it sounds like either a bad SIM port or a bad motherboard.