After deciding to try out OVIVO network for my phone I realised that the my Nokia 8310 was network locked and prompted me to enter the ‘restriction code’.
For this you need to know the 15 digit IMEI number, which for me was printed on the phone under the battery.
I then went to unlockme to find my unlock code.
What I got was:
Your Suggested unlock code is : #pw+813641033137751+5#
The full code #pw+813641033137751+5# has to be entered. The pw part was confusing at first as the numbers are only numbers and did not iterate over the letters as if texting. The trick is the * key iterates over * + p w.