I am trying to setup my Samsung I300 to work here in Canada and It is working but I get the message No service available then after a short while I get on the Roam network but I cannot get onto my home network.

The only thing that I cannot set properly is the MNC number which on these phones asks for a 2 digit number but here in canada we use a 3 digit number (ie. 656 for tbaytel)

Does anyone know hot to fix this? is there a HACK? or the conversion to a 2 digit MNC?

Please help