Hi Peter, thank you for participating in helping me solve this issue!
Current BM5/BS5 application version is: 6.02.00.1902
Current BS5 main firmware is: 1.33a
Current BS5 boot firmware is: 0.04a
FYI: The disc is far far far from full !...
Btw: Manually software upgrade just responded "Failed"
Hope this helps! Thank you very much again for participating - hope we can find a solution for me! :(