and when i take out the battery and put it back in it works again.any ideas why this is happening.
jim i got it at t-mobile and i have insurance.could it be the sim card
You Blackberry Pearl Flips shows Invalid Sim message?It's locked to network..Without unlocking from the current network lock you cannot use other GSM Network sim card.Use the unlock code to unlock it...Buy the Unlock code from the site Mobile-unlocker.com and unlock it from network lock easily.