The new firmware is suitable for FI9821W V2, FI9818W V2, FI9831W, FI9826W, FI9821P, FI9831P, FI9826P,
FI9805W, FI9804W, FI9804P, FI9805E, FI9805P, FI9805EP, FI9828W, FI9828P.

System firmware version: 1.4.1.10
App firmware version: 2.x.1.119
Plug-in version: 3.1.0.9

Improvements:
1) Optimized camera performance;
2) Optimized the feature of "download the latest firmware" under "System Upgrade".