While you would use a universal flash nuke (GitHub - Gadgetoid/pico-universal-flash-nuke · GitHub) and they copy one of the UF2 files on the SD card to the Pico using the BOOTSEL mechanism, I personally do not really recommend using the software that comes with the PicoCalc – much of it has better replacements out there.
For instance, if you want to use MicroPython I would recommend the Picoware port of MicroPython as found here:
Conversely, if you want to use PicoMite I would recommend the latest stable port of PicoMite to the PicoCalc which was found here:
@ernst Where did you move your files to? I checked out your server again and the PicoMite files were missing.
Warning, ernst, who has done the porting work for PicoMite hosted it on a Raspberry Pi with a rather wonky firewall which will do an automatic 12-hour IP block on anyone who attempts to access anything outside the ‘download’ directory.
Note that I would highly recommend upgrading the STM32 ‘BIOS’ firmware for your PicoCalc per the directions here – a lot of software will not function properly without this upgrade, and it fixes a number of issues.
Directions for flashing the firmware onto your PicoCalc’s STM32 can be found here:
You can find the latest official firmware here: