A word of warning. A circulating a ROM upgrade for the HP iPaq h6315 TMobile sku has been going around. This ROM has not been released by HP and will not be supported by HP’s service centers should issues arise. I am warning you now that you will do damage to your iPAQ if you install this ROM.
Note the disclaimer this person put up on his site
Any suppliers of this unofficial ROM update including myself will and shall not be held responsible for any action that may arise. In addition when and or if TMobile or HP gets their act together and do release a patch; it will most likely not work unless the TMobile or HP official patch is also modified for it to flash over to the HP modified patched unit. Doing any of the modifying, patching etc.. will void your warranty!