My steps to install this update:
I've created a 2 Gb SD-Card with the setup of Short-fuse hoken.
(see attachments). Smart to keep the testmode.key file back-upped.
This is also available on this board see @ShortFuse
After inserting the SD card the system start updating and everything as written in the manual (from @spoon1in this topic) went well.
I took my 2017 CARDINFO.cif file and replace the CARDINFO.cif file from de download with this 2017 one on the maps SD-Card.
After the unlock, I restarted the FB920BT and put the MAps SD card update 8 GB SD created from th