I can't turn on my tablet - Apple iPad mini (iOS7)
Cause 7 of 10: Your SIM is faulty
If your SIM is faulty, the display will tell you that your SIM isn't accepted.
Solution: Check if your SIM is faulty by inserting it in another tablet or phone. If your SIM is not accepted by the other device, your SIM is probably faulty. Find the nearest Vodafone Shop to order a new SIM.