Try sauteeing with a little oil, garlic and herbs and finish in the oven at about 350 degrees - finish it off properly!
Seriously, There are scientific references on the fact that Microwave ovens can interfere with mobile phones at a distance, so leaving on on the top means you may have fried your phone, so you may have to ask the provider as to whether it is redeemable, otherwise it will mean a new phone!