I just updated to the 2014103009 version linked here with no issues.
https://www.amazon.com/clouddrive/share/yzyBsns3xw01lfAwinSYrhToQsurvkqheXIItSEw8W4
ESCAM, just within the last couple of hours, sent me their latest firmware and I'm assuming it is identical other than company branding on boot.
Here is the ESCAM branded firmware:
http://www.filedropper.com/update3520daflsallnor402014103009mini8ch
Make sure your NVR has firmware version v4.0 [20140417] before updating.
I can install the firmware v4.0 [20140417] using a USB stick and booting up. When I try to install version 2014103009 it will not boot up again. I've tried updating through the browser and USB it says successful at the end, but will not boot up. I've tried both versions that you posted. Is it something to do with the install files on the USB stick when I install the first version?