The IPCV229-2OI, IPCV229-3OI, IPCV246-3OI, IPDM241-3OI and IPDM255-3OI models can only update their firmware from IE (Internet Explorer) with the video plugin installed and the required configuration.
If it is tried from another browser, such as Firefox or Chrome, it will give an error. In any case, it is recommended to do it using the IPC Device Manager software, following these steps:
If the device has the default credentials, the password from step 5 would be 1111.