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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.
SloFlo
check this https://forum.espruino.com/conversations/380059/ however before erasing it would be nice if you would be willing to backup your spi flash, I can post instructions, the procedure (transfer 8MB over BLE) may take many minutes (30?)