Thanks Meter 13
Join Date: Jul 2003
Location: Gloucestershire England.
If your xda is indeed capable of operating on 1800 you will be able to switch using bootloader method, hold power button while inserting stylus in hole on base, (bottomleft with screen facing you), when screen appears, press the button beneath the antenna. Having said that I was under the impression that the xda is not a true tri-band therefore if your phone hardware doesnt support 1800 it just wont work even if the option exists in rom. I am sure somebody will correct this if it is wrong.