Hi
I’m sorry that you’re having problems with the Vero 4K.
Recently, there were Samba changes for security reasons and this has changed SMB functionality. We’ll have most issues ironed out in this month’s update; but browsing shares is no longer possible for SMBv2/SMBv3. The same will apply to OpenELEC, but as they have a longer release cycle, it seems those security fixes haven’t made their way there yet.
You don’t need to use apt-get (or the command line) to update your device, and you can do so via My OSMC. It’s good however that you’re familiar with the command line as this will help us get you up and running properly.
My first recommendation is that you mount your Samba shares via /etc/fstab. The advantage here is that you will get better performance, as the kernel will perform readahead. This is quite important when you are streaming high bitrate 4K content.
Regarding 5Ghz: it’s possible to connect to WiFi using the command line. If you can SSH in and try this approach.
Sam