No Sim Card/Not Registered on Network

bchar26

Hi, my phone keeps telling me No Sim card. When I enable flight mode, the notification disappears but by doing so, I can't make/receive calls/texts. I have tried several times power off and on, remove and clean the sim card plus slot and even turning it on Safe mode but nothing has worked. Please help.

Thank you.
Regards

natty88

bchar26 sounds like either a faulty sim or a phone issue can you try sim in another unlocked or 02 phone to see if works then

Also can you check for any local services please pop your full postcode in here to check for any network issues please https://giffgaff.com/coverage-and-service#network if shows none try a manual roam as explain here to update network again http://is.gd/manualroam or switch on and of your airplane flight mode a few times Or try a soft reset by holding the power button and volume up down button at the same time until phone reboots its self and see if works then Or switch to 3g only via network settings

endorphin

bchar26 Sorry but it sounds like your phone is locked to another network. Your phone needs to be unlocked to all networks or locked to O2 only for it to work with a giffgaff SIM.

Please see this KB article How to unlock your phone. If you have an iPhone then syncing it to iTunes might unlock it.

You might want to look at this MoneySavingExpert page as well.

If all else fails then you will need to ask whichever mobile operator the phone is locked to (for the most reliable and permanent unlock) or take it to a phone stall/shop to have it unlocked.