Unlock codes are also known as: MEP code (Blackberry), NUC (Network.
The keys are accessed from these servers by the network carriers and by other third parties who are allowed access. There are many sites and companies out there who advertise that they can supply these unlocking codes, but sometimes the codes supplied are incorrect.
One law professor, Dale Clapperton, gave a talk stating that bundling i Phone and mobile phone service could be violating the Trade Practices Act.
However, the mobile carrier must inform the consumer of the existence of a SIM lock.
You must meet certain criteria in order to retrieve your NAC code. You have exceeded the maximum number of NAC retrievals.
This 12 months is counted from the day you retrieve your 1st NAC code. Other companies sell unlocking hardware, including devices which fit between the SIM card and the phone to spoof the original network identifier during registration and devices to read and edit the handset's firmware.Anatel, Brazil's telecom regulator, requires the carrier to unlock free of charge the mobile phone if required by the user.After this regulation most telecom operators started voluntarily unlocking the devices as soon as it was purchased so one could leave the store with an unlocked phone.If you don't have one, then complete the request form and we will get back to you or your key account contact. You are not authorised to use this service as you are not listed as an account contact on this account.Please contact the account contact in your company for more details.