Volvo keyless key unlocking

[308win]

Hello,
Who knows is it possible to unlock Volvo keyless key 868Mhz?
KR55WK49266.

If yes, maybe somebody has a file

[SAMDoctor]

I think it might be available from transpondery.com, have a look

[308win]

In tanspondery only for 433mhz. I need for 868

[308win]

Maybe somebody tried to unlock 868 mhz key using the file of 433 mhz?
The chip is the same so maybe it will work. Have somebody tried?