IP Cam Talk

That's not a DVR I have any experience with.
If the tftp updater tool isn't being probed - the next option would be to hook up a serial console. If there isn't a DB9 connector on the back panel, it's a serial TTL interface on the main board. 4-pin JST ZH 1.5mm connector, white.
Thanks. Yes thining this was the option.It has a RS-485 on back. Dont suppose that would be ok with TTL? Also read some where I would need a switch t connect network lead and dvr. Somethig about straight lead might have probs also win10? Again read probs?
Any advice on TFTP? Going to have another go tomorrow. Ping gives me hope