Replacing MFD

[Jim]

I have just replaced my old MFD8 NavNet 3D display with a newer identical MFD8 that I got from an acquaintance who is upgrading his system.
The screen on my old unit was getting increasingly hazy and hard to see. The newer display is near perfect.
The problem is that I want to transfer a chart to the new display, SDR908GO1MAP03 for my local area in the Eastern Caribbean, and I have lost the unlock code from years ago.
I have the system IDs for both my old and new displays.
How can I get the unlock code and do I have to pay for it again?
Many thanks for any advice!

 

[Johnny Electron]

You should contact Furuno tech support with both numbers. They can look up the newer one to see if it has any charts that might be newer before it gets overwritten. The licences can be legally moved because are replacing it in the same system and condemning the older unit.