Tronxy BootLoader Install & Software Update Guide

I bought a TRONXY X5S in December of 2017. I knew it would need updates and changes so I expected to have to upload new MARLIN code into the machine. Wizard has posted a working version of Marlin 1.1.8 setup for the X5S (THANKS!!!!) The link to this work is found at: https://www.thingiverse.com/thing:2738690

As suggested as a problem in Wizard's post, I too found out that my X5S unit did not have a bootloader installed. This meant that I could not "talk to the X5S" from the Arduino IDE; that is, it was NOT ready to accept new programs or updates..

After doing much web research, I figured out that I needed to have an ISP (In-System-Programmer) with which to burn the bootloader. This is done using the PROGRAM HEADER on the Printer Control Board (AKA the MELZI board) and NOT the normal printer USB connection.

A search of eBay revealed many inexpensive ISP programmers but none seemed to be compatible with the Atmel 1284P.

Fortunately, almost any 5 volt Arduino board c