VictorSPX firmware update through PWM

Is it possible to update the VictorSPX firmware if it’s only connected through PWM? All the documentation seems to be directed towards updating firmware through the phoenix tuner, which only handles devices connected through CAN. Thank you.

No, the only way to update firmware on these devices is using CAN (if only temporarily to just do the firmware update, then you can use them in PWM mode again). However, I don’t think there’s any needed firmware updates if you’re just going to use PWM on these devices.