The HK8 Pro Max uses the app for all synchronization and updates. Follow these steps to check for and install the latest firmware:
: Scroll down to find the "Firmware Upgrade" or "Software Update" option. The app will automatically compare your current version with the latest available on the server. Hk8 Pro Max Firmware Update
: If an update is found, tap "Upgrade Now." The firmware will download to your phone and then transfer to the watch via Bluetooth. The HK8 Pro Max uses the app for