Hi,
I have just purchasd a Avtech 674, and the software appears to be old.
The version is 1007-1002-1003-1002
I thought I would upgrade to the latest version before starting to use.
I've copied the 4 files you get from the zip onto a USB stick, and select upgrade but get an upgrade error. Am I doing this wrong.
The DVR is able to backup files onto the stick so it can obviously read it ok.
Thanks.