@emz,

There is one other thing you can try.

It is a long shot but it could work.......

When you open Protected Garmin file toolkit_2254.

Then add the speed cam you want to unlock.

Get the ID info

Example:
Belgium 2496 9 4 20

Take this info and then open Garmin Unlock Generator v1.5

Enter your Dashcam ID

Change the Select Software Product to Garmin Mobile PC

Next under Select Map Product open the window and pick custom mapset

Tick Enable additional fields (experts only)

Add the code 2496 9 4 20 or what ever speedcam you are trying to unlock in this field

Click OK

Then click Generate

Now make a unlock file in a text editor and add the number that was generated.

Then place both speedcam file and unlock file in the POI folder.

See if this will work for you.