Version: V4.02.R12.00017501  Download 

The red part is the version of the device as well as the hardware information; in the device version information, as long as the red part of the data is the same; you can use this program to upgrade the firmware

Upgrade steps:

1.check the version information of the device; find the version information in the red area;

2.log on the official website to download the latest correspondence procedures;

3.upgrade firmware