Prusa i3 Hephestos Firmware 1.4.2 Heated Bed (HEX)

This is the file HEX firmware 1.4.2 to PRUSA i3 with Heated Bed.
Example to install: https://www.youtube.com/watch?v=tF99TMY-5XU

If you want to install Heated Bed go to this link
http://www.mibqyyo.com/en-articles/2015/09/25/how-to-install-the-heatbed-on-your-prusa-i3-3d-printer/#/vanilla/discussion/embed/?vanilla_discussion_id=0