:::WARNING BELL CANADA USERS:::
I am having the same issue as
KUATEMACHU a few posts above.
Flashing a Bell Galaxy with anything other than the Bell issued firmware will "lock" the sim card.
Upon boot, you are asked to enter: "service provider control key"
You can then either enter the code and press "unlock", or "dismiss"; which brings you into the GUI, but all 3G and mobile network data is disabled.
Apparently Bell will unlock your sim for $75.
I would love to use custom firmware, but would rather not have to spend the extra cash. Anyone know of a 3rd party that unlocks Bell Canada hspa sim cards? Or perhaps know of a place that I can download the original Bell firmware?