So I got C2 off cleanly. I connected the 3 wires as instructed - mind you mine is beeping with error 32 which I'm still trying to figure out means this can still be done - and I get this error:
"===================================================
Ninebot Max Dashboard Flasher - ScooterHacking.org
===================================================
Waiting for flash to start...
Waiting for 0 seconds, press a key to continue ...
Flashing BLE555 Max firmware
Open On-Chip Debugger 0.10.0 (2019-02-10) [https://github.com/sysprogs/openocd]
Licensed under GNU GPL v2
For bug reports, read
http://openocd.org/doc/doxygen/bugs.html
WARNING: interface/stlink-v2.cfg is deprecated, please switch to interface/stlink.cfg
Info : auto-selecting first available session transport "hla_swd". To override use 'transport select <transport>'.
Info : The selected transport took over low-level target control. The results might differ compared to plain JTAG/SWD
adapter speed: 1000 kHz
Info : clock speed 1000 kHz
Info : STLINK V2J29S7 (API v2) VID:PID 0483:3748
Info : Target voltage: 3.170428
Error: init mode failed (unable to connect to the target)
Done! Check the logs to verify if the flash was successful.
Press any key to continue . . ."
Cany anyone help?
Its saying can't connect to target check your soldering and make sure you're connected to the correct wires. Pull the cover off your STLink and make sure the wires match up sometimes the label on the cover is wrong.