[Firmware ChangeLog]: What's New in 6.04 | inReach Mini 3 / Mini 3 Plus

Overview

Garmin has released Software Version 6.04 for the inReach Mini 3 and inReach Mini 3 Plus satellite communicators.

This is a stable update with a larger changelog than the usual brief maintenance post. The fixes cover SOS countdown behavior, shutdown prevention, Garmin Share, TracBack, activity data, keyboard UI behavior, weather requests, and a Mini 3 Plus-specific photo download issue.

Update Details

Devices: Garmin inReach Mini 3, Garmin inReach Mini 3 Plus
Software Version: 6.04
Announcement Date: May 28, 2026 (UTC)
Channel: Stable release
Category: Outdoor satellite communication
Official Announcement: Garmin Forums

What's New in Version 6.04?

SOS and Shutdown Reliability

Fixed backlight timeout in the SOS countdown.
Fixed a possible shutdown if tones files are corrupted.
Mini 3 Plus only: Fixed a possible shutdown when downloading photos.

Fixed waypoint notes transferring with Garmin Share.
Fixed issues with PIN compare in Garmin Share.
Fixed missing power-on points in TracBack.
Fixed missing start and end activity points in TracBack.

Activity, Weather, and Interface Fixes

Fixed course ascent and descent in the activity loop.
Fixed issues that could cause keyboard buttons to shrink.
Fixed the "Wait for GPS" page appearing when requesting weather for known locations.
Fixed satellite weather requests possibly failing after losing internet.

Why This Update Matters

Better Confidence in Emergency-Oriented Workflows

The inReach Mini 3 line is built for off-grid communication, so small reliability fixes can matter more than new features. The SOS countdown backlight fix is especially important because the countdown screen needs to remain understandable under stress and changing light conditions.

TracBack and Garmin Share are practical field features. Missing activity points or waypoint-note transfer problems can create confusion when reviewing routes, sharing information, or retracing a path.

Version 6.04 addresses several of those reliability gaps directly.

Weather Requests Are More Robust

The weather-related fixes are also useful for remote travel. Garmin lists a fix for the "Wait for GPS" page appearing during weather requests for known locations, plus a fix for satellite weather requests possibly failing after internet loss.

That combination matters for users who move between phone-connected, internet-connected, and satellite-only conditions.

Installation Tips

Before installing, charge the device and sync through Garmin's supported update path. After updating, it is worth checking a few basics before relying on the device on a trip:

Confirm the device syncs correctly
Send a routine check-in or test message
Confirm TracBack and waypoint behavior if you use those features
Verify weather requests if they are part of your trip workflow
For Mini 3 Plus owners, confirm photo download behavior if you use that feature

Should You Install Version 6.04?

For most owners, yes. This is a stable release and the changelog contains several reliability fixes that apply to real field use.

The only time to be cautious is if you are already mid-trip and prefer not to change firmware during an active outing. Otherwise, updating before your next remote hike, bikepacking trip, climb, or travel day is the more disciplined approach.

Conclusion

Garmin inReach Mini 3 / Mini 3 Plus Software Version 6.04 is a meaningful maintenance update. It improves SOS countdown behavior, shutdown resilience, Garmin Share, TracBack, weather requests, and Mini 3 Plus photo downloads, making it a worthwhile install before the next off-grid use.