I just wanna share this to all members of techgsmnet, 2 units of motorola T722i successfully convert. This unit is the same with T720i.
Procedures:
1. Unlock you phone using smart-clip.
2. Change band 900/1800 Mhz using smart-clip, because this phone is 1900 Mhz.
3. Do hardware modification.
Here is the pic for hardware modification.