JetHome JetHub H1 - updating the firmware of the Zigbee module with saving NVRAM, without rebinding devices

The video tutorial shows step by step how to update the built-in zigbee module of the JetHome JetHub H1 smart home controller, saving and then restoring the contents of NVRAM. Such an update does not lead to the destruction of the zigbee network and the re-pairing of all devices, everything continues to work normally.