Manual update of CPE.BIN file on Garmin Solar Instinct

Question

Trying to update CPE.BIN (Connected Predictive Ephemeris) file on Garmin device without using proprietary Garmin Express / Garmin Connect app.

There is documentation on the Internet about EPO.BIN files, but I can't find anything about CPE files.

• Is there any available info about the file format?

• Is there any known source for those files? Could be Garmin, Sony (GPS chip provider) or third-party. Or a recipe to craft the file from public information.

• Where should the file be put on the watch file tree when used in mass-storage mode?

Answer 1

To answer your last question:

CPE file should be in the REMOTESW folder (sports & fitness devices).

You can manually request update from Garmin Express, just delete the contents of the REMOTESW folder and sync with Garmin Express.