It looks like all my cameras have CH in the serial number. All in English except for DS-2CD3T45-I8. Can I upgrade any of these:
N
Model
Firmware
1
DS-2CD2032-I
V5.2.5 build 141201
2
DS-2CD3135F-IS
V5.3.3 build 150803
3
DS-2CD3145F-I
V5.3.3 build 151103
4
DS-2CD3145F-I
V5.3.3 build...