I received the unlock code for my Samsung B2100 from my service provider (O2).
Only problem is I can't figure out how to input the code???
I've tried with a SIM from another service provider and I've tried without any SIM inserted...
Whenever I input the code it just reads "Emergency Calls Only"
ne and remove your existing SIM. Then, turn your phone back on; you will probably get a "SIM not inserted" message. Ignore it. Leave your phone for a few seconds to boot up, and then simply enter the code digit by digit using your keypad - you should see it coming up on the screen. Check the code very carefully as you enter it, and double-check before pressing the last button - you only get a limited number of attempts!
Once you press the lass button, a "SIM lock removed" message - or something along those lines - should pop up
The it is your solution
Much obliged for the help.
Mystery solved, needed to insert a PIN protected SIM card from a different network