I have a Treo 650 GSM. It charges but doesn't turn on. So I got 5 Verizon motherboards dirt cheap to try and fix my problem. i have installed each one at a time and received different information on the screens. Anyway I changed the daughterboards to GSM so the phone can accept SIM cards. Tried to use ROMtool, updates and a host of programs to revamp at least one of these boards to use with Cingular to no avail. The boards are exactly the same just the daughterboards are different.

Any advice on how to do it would be helpful.