Error: CAN packet version mismatch: panda's firmware v0, library v4. Reflash panda.

[blackandwhitehat]

Flashed Official White Panda with commit bedee40 and it showed a protocol mismatch. Bricked panda bad accidentally flashing firmware that shouldn't be on it, even paw wouldn't recover. Start over with another brand new panda, same exact issue.

┌──(panda_env)─(panda㉿Depot)-[~]
└─$ python pandafwtest.py 
INFO: connecting to panda 290025000e51363338383037
Panda firmware version: DEV-bedee405-DEBUG

┌──(panda_env)─(panda㉿Depot)-[~]
└─$ python test.py
INFO: connecting to panda 290025000e51363338383037
Panda connected and configured.
Error: CAN packet version mismatch: panda's firmware v0, library v4. Reflash panda.
Panda connection closed.

Located check in python/__init__.py line 95

raise RuntimeError(f"{desc} packet version mismatch: panda's firmware v{panda_version}, library v{lib_version}. Reflash panda.")

If I bypass this check in __init__.py I get LIBUSB1 intermittent timeout errors and I'm not sure it's actually sending any data to bus.

┌──(panda_env)─(panda㉿Depot)-[~]
└─$ python test.py
INFO: connecting to panda 290025000e51363338383037
Panda connected and configured.
Message sent successfully.
Panda connection closed.

┌──(panda_env)─(panda㉿Depot)-[~]
└─$ python test.py
INFO: connecting to panda 290025000e51363338383037
Panda connected and configured.
Error: LIBUSB_ERROR_TIMEOUT [-7]
Panda connection closed.

upsidedownlemon on Comma Discord helped me locate last commit before CAN PACKET VERSION = 1

https://github.com/commaai/panda/blob/5f5f30eedc72f62c7a10dec0c57ffeeb7a92faf6/python/__init__.py

Tried to install the older version of pandacan but it failed due to a Libusb1 version error

┌──(panda_env)─(panda㉿Depot)-[~/panda]
└─$ pip install .
Processing /home/panda/panda
  Installing build dependencies ... done
  Getting requirements to build wheel ... done
  Preparing metadata (pyproject.toml) ... done
Collecting libusb1==1.6.6 (from pandacan==0.0.9)
  Using cached libusb1-1.6.6.tar.gz (56 kB)
  Installing build dependencies ... done
  Getting requirements to build wheel ... error
  error: subprocess-exited-with-error

  × Getting requirements to build wheel did not run successfully.
  │ exit code: 1
  ╰─> [1 lines of output]
      error in libusb1 setup command: use_2to3 is invalid.
      [end of output]

  note: This error originates from a subprocess, and is likely not a problem with pip.
error: subprocess-exited-with-error

× Getting requirements to build wheel did not run successfully.
│ exit code: 1
╰─> See above for output.

note: This error originates from a subprocess, and is likely not a problem with pip.

I manually edited the setup.py and requirements.txt to use libusb1-1.5.0 and it installed successfully.

This resolved the issue and panda works as expected now.