steve1225
Getting comfortable
The main upgrade in newer firmwares of WizMind-S (5xxx-S3) cameras is AcuPick.. Which works only with a new 5xxx-EI NVR (You have this model).B54IR-Z4E-S3
IPC-T54IR-AS-S3
IPC-T54IR-ZE-S3
NVR8CH-8P-2AI
If You interested in this function (You can find many videos about AcuPick on Youtube) then You should upgrade firmware. If not, there is no need.