Call ATT or sprint or Verizon to lock the phone forever

Each phone has individual IMEI number, once recorded, the phone can't be used on the registered carrier forever. It is also called "clear ESN" in sprint phones.

Don't know if IMEI can be changed.

However, from the fact that many China's cell phone use one IMEI for cheap, any phones can be used in China.

所有跟帖： 

• I don't have that IMEI number, how can I find that? -白蘿卜- ♀ (0 bytes) () 12/05/2012 postreply 13:19:51

• Carrier has it. Maybe on the box as well. -wooddiy- ♂ (199 bytes) () 12/05/2012 postreply 14:46:58

• Very helpfully. ^_^ thanks a lot! -白蘿卜- ♀ (0 bytes) () 12/05/2012 postreply 16:21:11