Want to unlock a Nokia N900 for free? Unlocking a Nokia N900 is very similar to unlocking most other Nokia N-series phones and almost all SIM based mobile phones for that matter. The instructions I have provided in this article are based on the instructions in my How To Unlock A Nokia Phone guide and require you to have an unlock code before beginning. You can usually get a free unlock code by contacting your service provider or using some unlock software.
An unlock code is essentially used to deactivate the SIM lock that is put on most phones by default. Once you have disabled the SIM lock on your N900 you will be able to use it on any phone carrier’s network and receive service from them. If this isn’t what you wanted or expected then unlocking is probably not for you. Furthermore, entering multiple incorrect unlock codes in a row can permanently lock up your phone! So make sure you have a working unlock code before begining the steps provided below. Otherwise you should consult a professional service or online vendor for unlocking your Nokia N900. Here are the steps to unlock your phone:
How To Unlock A Nokia N900
1. Power on your Nokia N900
2. Type #PW+UNLOCKCODE+1# (Where UNLOCKCODE is your Nokia N900′s unlock code)
3. Your N900 should say “SIM Restriction Off”