First, thanks you for your answer.
So, that means that I must install the version for GPSMAP 62/78
But my device is a GPSMAP 62 S ( you know “S” means barometer, and compass)
So this last version: Version 3.90 GPSMAP 62/78 is suppose to work fine on my GPSMAPS62 S ?
And what do you mean for:
Patch a new firmware during the progress of update through the WebUpdater and you can never go wrong ...