Project 2 on a HyMini 2.4"

OK, I was wrong, if I power it off for long enough I get..

[auxxoconnd1m1 10:40] ~/projects/Espruino >python scripts/stm32loader.py -p /dev/cu.usbserial -Vevw ./espruino_1v70_hystm32_24_ve.bin
Open port /dev/cu.usbserial, baud 115200
Reading data from ./espruino_1v70_hystm32_24_ve.bin
*** Get command
    Bootloader version: 0x22
    Available commands: ['0x0', '0x1', '0x2', '0x11', '0x21', '0x31', '0x43', '0x63', '0x73', '0x82', '0x92']
Bootloader version 0x22
*** GetID command
Chip id 0x414, STM32F1, performance, high-density
Traceback (most recent call last):
  File "scripts/stm32loader.py", line 579, in <module>
    cmd.cmdEraseMemory()
  File "scripts/stm32loader.py", line 242, in cmdEraseMemory
    if self.cmdGeneric(0x43):
  File "scripts/stm32loader.py", line 137, in cmdGeneric
    return self._wait_for_ack(hex(cmd))
  File "scripts/stm32loader.py", line 98, in _wait_for_ack
    raise CmdException("Chip replied with a NACK during %s" % info)
__main__.CmdException: Chip replied with a NACK during 0x43