Revert back to ARDUSUB 3.5.4

Hi, Im trying to revert back to Ardusub firmware 3.5.4

im on the firmware website ArduPilot firmware : /Sub/stable-3.5.4

but i cant find pixhawk 1 on there or a Ardusub.APJ file for 3.5.4 can anyone help?

Thanks

Paul

Hi @Tangaroa

Use this:
https://firmware.ardupilot.org/Sub/stable-3.5.4/PX4/ArduSub-v2.px4

The firmware extension changed for 4.0 as Ardupilot parted ways with the PX4 project.

Thanks William,

Just tried it and everything is working.

Paul