The configuration.h at https://github.com/lwalkera/Marlin/tree/limitsaving
is wrong for the printrboard.
Can printrbot.com load the "official" new hex file on their support page please. The "official" config files would also help those wanting to customise.
Also there seems to be confusion on the correct way to load the firmware; the doco at printrbot.com says to use the Arduino environment, but apparently FLIP is the correct way. So a simple guide to loading the new firmware would also be appreciated