How to force Edge 130 Plus to latest firmware update?

My Edge 130 Plus has 3.00 firmware version. Garmin Express and Garmin Connect Mobile say my device is up-to-date, nothing to update, however Garmin docs says firmware version for this device is 3.8. How to update it?

It is randomly restarting during activity, so looking for a reason. Deleting and resetting all settings did not help

Thanks for answers

Adam