Honeywell Performance series Nvr reset.

I have something similar, a HEN08102. As for shorting the those pads, I tried it with gloves on. It made a spark and reset the DVR but it didn't reset the password, so probably best not to try that method! I don't have a serial to USB cable so I wonder if taking out the battery would work.. Anyone tried that? the trouble is.. it's fixed really well to the board and I worried I might break the bracket off holding the battery in..

recommend using usb, cost cheaper. solved the problem already using the instruction aboved. null modem+usb cable
 
Has anyone successfully reset a Honeywell Performance Series NVR lately? I have a HEN16163 that I purchased off of eBay. Was advertised as factory reset and ready to install but it was not. I don't have the admin password to get in and reset it. I need to do a factory reset . If I am able to access through the serial port using a null modem, can I just reset to factory settings without doing the firmware (TFT) commands described earlier in this post?