Hi all i purchased a hikvsion nvr with multilanguage firmware from aliexpress a couple of years ago.The NVR has been working fine however 6 months ago i lost the email functionality. The resolution of the images the NVR sent were crap but id like to get back if possible. are there any guides out there on how to upgrade these things from what ive read its no easy task.
current firmware version is V3.3.4 build 150616
current firmware version is V3.3.4 build 150616