There is always a way around. To use sd card slot and initiate a connection
to upgrade server. It has to connect to wifi router, exchange handshake
steps, log to remote server, do the task...
I assume no difference if something starts from device itself or sd card.
At least I installed my dedicated server from usb stick, containing just
basic things. Then I fetched libraries from remote server. Added parts
the same way. Should work for every device around the globe.
Best regards all.
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