T239 T-Mobile unlock via codes with tricks.

This unit hard to unlock with its model itself in z3x, some error can be encountered. To unlock it safely simply choose E2210 in z3x and tick Read Info (code).
After you have read the codes, do this procedure:

1st Make Full Eprom Reset *2767*3855#
After Rebooting Mobile
then enter....
*7465625*638*00000000*00000000# (to change NCK code to 00000000)

then enter...
#7465625*638*[Code read from Z3]x# (to permanently unlock the phone)

check the lock status...
*#7465625#

Input *#7465625# to check the locks....all locks should now be inactive as shown below:


network lock - inactive
subset lock - inactive
sp lock - inactive
cp lock - inactive
sim lock - inactive
activa lock - inactive
phone lock - inactive
auto network - inactive
auto subset lock - inactive
auto sp lock - inactive
auto cp lock - inactive
auto sim lock - inactive
Note: This unit can be use in country with GSM band 850 and 1900 mhz only.... No signal in other country.