The first Windows Mobile 6.5 upgrade for a WM6.1 smartphone has been released. The upgrade is for AT&T’s Samsung Jack SGH-i637 and is available for download free of charge.
The installer flashes the ROM of the Jack with the new OS, so you’ll need to backup your data before the upgrade. Also, the update software is only recommended for 32-bit versions of Windows XP or Vista, so if you’ve already made the move to Windows 7, try to find another system to perform the upgrade.
Click the link below to find out more about the upgrade.