FYI, a firmware upgrade is available via Windows Update today. According the MS it:
Unlike the last time my firmware installed today without a hitch• Resolves an issue with on screen touch navigation in the UEFI boot menu.
• Resolves some Surface Type and Touch cover connectivity issues.
• Support for 106/109 keyboards on North American Surface devices.
• Resolves an issue where toggling airplane mode would disable the Wi-Fi driver.
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