Unlock Method for Samsung M150:1. Turn mobile phone on with unaccepted sim BUT NOT FULLY INSERTED (only push it half way into sim slot).2. Insert unaccepted sim to phone (push the sim fully into the sim slot).3. Input #*7337# and phone will reboot and will be unlocked.It works well on my cell phone so far. Attention! YOUR IMEI WILL BE: 0000000000.....