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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.
@Kartman
Add gprs.at.debug() before so you get debug output.
How long does it take? I've not done an update using this method before, but via USB to the module(I'm also using another BG96 based device that has a USB connector) it takes a couple of minutes to update.
I think RAK should put some pads at least or better still a usb connector for updating the module in Rev 2.