Error flashing HY32 Board

I've also gotten:

Reading data from espruino_1v41_hystm32_32_vc.bin
Bootloader version 0x22
Chip id 0x414, STM32F1, performance, high-density
Writing 208084 bytes to start address 0x8000000
Write 256 bytes at 0x8000000
Traceback (most recent call last):
  File "stm32loader.py", line 513, in 
    cmd.writeMemory(conf['address'], data)
  File "stm32loader.py", line 348, in writeMemory
    self.cmdWriteMemory(addr, data[offs:offs+256])
  File "stm32loader.py", line 221, in cmdWriteMemory
    self._wait_for_ack("0x31 programming failed")
  File "stm32loader.py", line 87, in _wait_for_ack
    raise CmdException("No response to %s" % info)
__main__.CmdException: No response to 0x31 programming failed

:D