i bought my g1 from a friend in december of last yr and its still running on the 1.5 cupcake firmware.. i want it to run on the 1.6 donut firmware. i called tmobile and they had me do a lot of tests and system check ins and it all was successful but they said my g1 is rooted and that's why i haven't received the over the air update yet. i either want to unroot my g1 or get the update so i can have the 1.6 firmware. can anyone help me?? please?