Tried changing (for fun) the imei on my 3210, ive heard in the mobile the imei is stored as plain text and hex or similar. When i change it and run NokTool or similar it says:

Current imei: < the one i changed >
Original imei: 4489................ ( the original )

But if i do the same on a 5146 (similar to the 5110) both are changed:

Current imei: < the one i changed >
Original imei: < the one i changed >

Why is this???
What mobile types can the imei be changed for both original and current values??

Thanks
Mike