Viltrox released multiple firmware updates addressing a variety of issues
Viltrox AF 20mm f/2.8 FE V1.1.2 Firmware Download
Firmware update instructions：
1. optimize the lens edge focus problem.
2. repair some camera boot abnormal problem.
3. Fix some camera focus jitter problems.
4. Fixed some camera video mode focusing difficulties.
5. Fix the problem that the focus position is not reset after shutdown and startup.
Viltrox AF 27mm f/1.2 E Pro V1.1.3 Firmware Download
Firmware update instructions：
1, repair some cameras in continuous shooting abnormal problems.
2, repair some camera video mode motor abnormal sound.
Viltrox AF 23mm f/1.4 E V1.2.1 Firmware Download
Viltrox AF 33mm f/1.4 E V1.2.0 Firmware Download
Viltrox AF 56mm f/1.4 E V1.2.1 Firmware Download
Firmware update instructions：
1. Optimize the AF focus stability of the lens in video mode on some camera models.
VILTROX 56mm f/1.4: B&H Photo / Amazon
VILTROX 33mm f/1.4: B&H Photo / Amazon
VILTROX 27mm f/1.2: B&H Photo / Amazon
VILTROX 23mm f/1.4: B&H Photo / Amazon
VILTROX 20mm f/2.8: B&H Photo / Amazon
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