How To Unlock A Safelink Sim Card. Pop in a different carrier SIM card in Tracfone SAMSUNG GALAXY J2 phone. Make sure your phone is turned OFF.

Slide the card into the holder until it stops. If you were on net10 service with safelink you might have to call them but it will probably work without that. Replace the battery if necessary then replace the back cover.
Post to Twitter.
You should get a notification that your phone is locked but there should be a place for you to enter your unlock code. Post to Twitter. If you were on net10 service with safelink you might have to call them but it will probably work without that. The first rep named Adam gave me 4 digit code and then the SIM card was locked by safelinks network after over.

