For everyone else, stick with – it’s free, legal, and headache-free.

: It forces the device into a state where your computer can recognize the internal drive even if the device won't fully boot. File Correction

The Cure 3 patch modifies sensor polling rates. Fix: Go to Settings → Sensors → HR → Set to "Force 1Hz polling." Alternatively, reinstall the stock firmware using Garmin Express.

Open your downloaded .GCD firmware file by dragging it into the box or using the "..." button. Select the CURE option.