Firmware is the device software of the camera. An update can bring maintenance or a targeted solution, but a file for a nearly identical model is not a safe replacement. Start with the exact hardware specifications and the instructions from the manufacturer or responsible supplier.
Note the full model number and the installed version from the device interface. Keep in mind that there may be another version under a manufacturer's brand. The name on a web store page is not enough to determine the correct software. If in doubt, ask the manufacturer which distribution is included with the provided device.
Use the official download source and read the release information and installation terms and conditions. Check whether a intermediate version is needed and whether used features are affected. Pre-determine why you are updating, for example a described problem or maintenance advice. This allows you to assess after the update whether the intended result has been achieved.
Store a configuration export where supported and note the necessary settings in a secure location. A settings file is not a backup copy of camera footage. Keep important recordings separate if they must be retained. Agree that images and recordings may temporarily be missing during maintenance and ensure that authorized management is available.
Use the method supported for this model, with a stable connection and power supply. Do not interrupt the procedure because the web page is temporarily unreachable; follow the indicated waiting time and status check. In case of an error message, record the exact message and consult the recovery procedure before re-offering files.
Confirm the new version and view live footage, a recent recording, and the features you are using. Also check time, detection, alerts, and access via the normal viewing devices. A updated version number only proves that the software has been changed. Therefore, also note the performed feature test and any deviations.
Use only software that is demonstrably intended for the exact execution. A similar model name is insufficient.
Don't assume that. The camera and recorder have their own software and maintenance procedure.
