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Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
@user155968
I just wanted to report that I had a similar issue loading firmware from an Android phone using NRF Connect.
The process was stalling out and the watch would fall back to trying to reboot. (And failing, which is why I was loading firmware in the first place.)
I tried over and over again without success.
Then I guessed that something on the phone wasn't moving quickly enough.
I rebooted the phone, started NRF Connect as the only app. I didn't bother trying to disable anything from the background, just a normal reboot.
The NRF Connect firmware update then ran without a hitch.
Jon