How to Unlock the Giga GSD-456

1. Insert SIM card from a source different than your original Service Provider
   (i.e. if you have a Rogers phone, use a non-Rogers SIM card),
2. Phone will ask you to enter Sim unlock pin
3. Enter unlock code
4. Phone will be unlocked

Any suggestion? Want to help us improve our Guideline to unlock Giga GSD-456 ? or those are not accurate ? Please contact us