What is Unlocking?
A lot of phones come locked to the carrier they were intended for and it asks you for a passcode whenever you insert a SIM card that wasn’t intended for the phone to use it. The easiest way around this is to purchase an unlock code. Unlock code suppliers submit your IMEI to the manufacturer or carrier and then get back an unlock code specific to that IMEI for you to input and unlock your phone. After that, your phone is now permanently unlocked and good to go.
How to Unlock Your Phone
I’ve partnered with the site DoctorSIM to offer unlock codes to readers.
How to Setup Internet/MMS (if necessary)
If you don’t have internet access or can’t send picture messages after you put in the new SIM card, simply follow this tutorial to set it up: