PREREQ: The Bot Phone must have 1.137+ to do the following steps
Via the Bot Phone, download the .pnf firmware at https://marksetbot.azurewebsites.net/d
As of May 2020, there are two main branches of firmware available for ProNav: FW 1.x and FW 2.x.
There are also two generations of ProNav hardware available: HW 0 and H W2.
As a general rule of thumb, any hardware made before 1/1/2020 is HW 0 and anything after that is HW 2.
The same updater is used for both but the steps vary.
If you are running FW 1.x, you should upgrade to FW 2.x. FW 2.x has many improvements but most notably improves GPS and compass code for long term anchoring stability.
You can tell what generation you are running based on the name that shows up when the updater does a device search.
If you are running HW 0, you will see something like "PRONAV00646" where 00646 is the serial number. If you are running HW 2, you will see "ProNav MSB" or "ProNav Central"
For HW 0 showing "PRONAVxxxxx":
For HW 2 showing "ProNav MSB" or "ProNav Central"