Hi nothao - perhaps someone here can help you, since you've already been to RimRoad and BlackBerry Forums and asked the same question.

So, are you trying to unlock the 5810, or are you trying to get a 5810 to work with GSM 900/1800?

I will let someone else answer since you clearly DO NOT UNDERSTAND THAT IT WILL NOT WORK ON 900/1800.

And it is not advice - it is fact.

Out.