I bought a 9360 on Monday, manufacturer unlocked but it keeps saying "insert sim card". I've tried 3 different sim cards, all I know that work but the blackberry doesn't acknowledge they are there.
I reset the phone but it hasn't made a difference, the OS is up to date, is there anything else I can try? Or should I take it back to the store?
Send it back to the store, it can be some hardware problem like defective sim card.. if it's branded and unlocked then it's not new and who knows maybe it has something broken.
Ended up taking it back and switching it for a 9790, so worked out well in the end
Thanks for the advice, I wasn't sure if I was just being silly and not doing something right with the 9360