So...i've tried to access the .img file from the firmware.
Tried with version 20180930, 20181015 and 20181029

WinRAR - Can't open
Daemon Tools -nope
Win Explorer - no way

Then i tried to convert the file from IMG to ISO

AnyBurn - fail
IMGtoISO (Tool) - error with version 20180930 and 20181015 - success with version 20181029, but whatever he converted was only 160kb...so still a fail.