Please follow the following steps to u pdate your system:
- use the system micro SD card
- format an micro SD card
- downolad the H&C_v1.0.3.zip or Heating_v1.0.1.zip
- unzip the file 
- enter in the main folder 
- copy all the file in the micro SD Card
- Insert the micro SD card in the device and the system will be update automatically