Hi
After a long time I am back asking about 5.4 upgrade.
I see this page is given by main WOS site for upgrades
Is the above [link] procedure OK for my Gigablue UHD Quad 4k receiver?
I guess an image of the whole system is better be done and copied externally before upgrading - just in case.
Thank you and Happy New Year 2021 - one can only hope!