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After the transfer is complete, safely disconnect the handheld. Turn it on to allow it to finish the internal installation process. Manual Update Method (Advanced)
Use a high-quality mini-USB cable to connect your to your computer.
If you update the handheld, you may also need to update your DC 40, DC 50, or T5 collars to maintain compatibility.
The most reliable way to download and install updates is through the official Garmin Express software. Get the Garmin Express application on your PC or Mac.
Launch Garmin Express and select "Add a Device" .
If you are using a specific firmware file (e.g., GUPDATE.GCD ) from a trusted source like GPSrChive , follow these steps: Connect the handheld to your computer in .
Ensure your device has at least 50% battery or is plugged into a power source before starting to prevent it from turning off mid-update, which can "brick" the unit.
's firmware (proshivka) ensures your device remains compatible with newer collars and benefits from the latest performance improvements and bug fixes.