I have a Sony Ericsson C905a from Rogers Canada with Data Usage Blocked. Im wondering if I there is any software that will allow me to use GPS without Data (With or Without Wi-Fi). I already tried Mobile GMaps but it doesn't work (See Question Here http://forum.mgmaps.com/viewtopic.php?p=15069#15069)

Quick Question
-Would there be any need to De-Brand my phone? Since I can already use Wi-Fi, etc.