Only attempt if app method fails and support provides a .zip or .bin file.
The HK8 Pro Max uses the app for all synchronization and updates. Follow these steps to check for and install the latest firmware: Hk8 Pro Max Firmware Update
You will find YouTube videos and forum posts promising "Hk8 Pro Max custom firmware" with features like full Android OS or Google Maps integration. Be extremely cautious. Only attempt if app method fails and support provides a