I'm getting two of these boxes in the mail today and I will be modding the boxes with new Wi-Fi antennas attached to an external antenna. I will keep you updated with the process.
I just saw this. Thats crazy. Exact same spot I drilled mine. I wouldn't recommend extending the Wi-Fi antenna off their surface mounted one though. Just a run a new one straight from the board to the antenna.
I believe you could, but you'd have to have software that directs your wifi to use the antenna from the USB port. Perhaps there is something online or Zidoo to add it to the next upgrade.
https://www.ebay.co.uk/itm/6dBi-2-4...992264&hash=item1ca061952b:g:06kAAOSwaLdadtTG would this do the trick?
I've found the 5ghz speed works much better then the 2.8ghz speed. I'm easily getting in the 30s and above, so I suggest you try that, before you start modifying the box.