I have the HTC HD2, TMO-US 1024 GB T-Mobile with the 6.5 windows mobile on it. I want to flash it back to windows Mobile 6.1. The 6.5 is stock. Could someone please tell me how to flash it back to Windows Mobile 6.1 and where to get a reliable ROM or stock of 6.1? Do I need a HSPL? Which version? Where can I find it? Please send me the procedures and links to the necessary files. THANK YOU FOR YOUR HELP!