Camera password requirement with older NVRs

[MrDeepFreeze]

I have a few older NVRs that do not allow a password longer than 6 digits. I am unable to replace damaged cameras on this NVR because the newer cameras require a Medium or Strong password that is at least 8 digits. Is it possible to remove this requirement on a newer camera? The NVR has already been updated to the latest firmware but it still won't allow an 8-digit password. I'm stuck. Is there a way out? Thanks.

 

[EMPIRETECANDY]

If the NVR too old and those cams can't add to the nvr, only way is to change the NVR, old cams' password can set uyp to 8 digits and more.