Release Date: April 3, 2026
Firmware Version: V1.3.1.4
1.Supports .bin format upgrade for N4 series
2.Fixed several known issues
Note:
The screen firmware must be upgraded simultaneously to V1.2.22


Release Date: September 28, 2025
Firmware Version: V1.3.1.2
1.First firmware release for the upgraded N4 series
Screen Firmware Version: 1.2.21
1.First screen firmware release for the upgraded N4 series