CV65 -> C65 Worked but...

[zalaros]

I've finally unlocked my CV65. But when i try to upgrade it with the 25 official firmware update for C65 an error appears that says "wrong firmware version". Is it because my phone was not unlocked succesfully or because i have recently upgraded it with the 25 official firmware for CV65? The phone is working perfectly. I guess that if it wasn't unlocked succesfully it would be dead now, right? So it must be the firmware version. What can i do now? ThanX in advance for your answers :)

[vascof1]

cv65 is vodaphone branded phone
c65 is free customer phone that is the differens between this phones
you need to upgrade your phone with update tool for c6v this is tha same like cv65
best regards