1.First, power on the MDVR, and let it online, then connect the LAN cable to AI-BOX-A, then AI-BOX-A will use the MDVR network to registration activation algorithm.
2. Connect the USB Serial port to AI-BOX-A 's rear panel, another side connect to the PC USB port, restart the AI-BOX, it will enter the download mode, we can find the prot at PC's Device manager, it will show as 'Qualcomm HS-USB QDLoader 9008'.
3. Unzip the MultiDownload_V2.1.zip file, then open the MultiDownload_V2.1.exe, choose LoadXML，then use password 123456 enter it.
4. Unzip the spf-2-0_common_5.6_038bb55_JS1A_V9_2019122401_user.zip, choose "rawprogram0_16G_split.xml", then check the port and choose start to upgrade the AI-BOX-A. (For spf-2-0_common_5.6_038bb55_JS1A_V9_2019122401_user.zip, you can ask our technical support engineer send it to you)
5. After finished this, remove the USB cable, and restart the AI-BOX-A(wait more than 10s to restart again), then wait the Android system loading, it will need about 3 mins, then you can check the version at MDVR side.