I am pretty sure that .41 is not fully unlocked for the xv6900 which is what i have you need to use IMCOKEMANS 2.31
http://forum.ppcgeeks.com/forumdisplay.php?f=59
If you go to that page it is listed at the top. I think the problem is that your phone is not fully unlocked. I would read through that page with the unlocker and use the 2.31 instead of .41 which is for nongps....xv6900 is gps so you need 2.31 so try downloading 2.31 and unlocking again