Hi,
Enjoy free unlocking of Samsung T729 formally calles T-Mobile T729 BLAST

ITS 100% tested by me & workes great

1. First do a CUSTOM reset: *2767*2878#
2. Take a wrong network SIM and insert a half of it, so when you turn on the phone it don't detect the SIM. Very important so it won't ask for network password and shows "Insert SIM" message.
3. Now take out the battery a little so you can insert fully the SIM without turnig off the phone, at this stage the phone is still asking to "Insert SIM" with the WRONG SIM inside.
4. Make a FULL reset: *2767*3855#
5. The phone should reboot working with "wrong" sim inside.
6. Change the NCK password to 8 zeros: *7465625*638*00000000*00000000#
7. Disable network lock: #7465625*638*00000000#
in some T729 it happens u need to try same process for 2 to 3 times to make it work Enjoy.......................................