pi6500 firmware upgrade...

[Zorikos69]

Hello guys.I do have the firmware for the controller which is an iso file that contains 2 *.efi files but i don't know how to re install the firmware.I suppose through the parallel port but in order to reinstall it, the controller has to be idle but in my case the controller never comes idle. In fact the touch screen in the printer menu shows nothing...i would appreciate your help.Thank you in advance...

[cobiray]

The parallel port is used. Check out the bulletins on the firmware accelerator and the revised instructions for reinstalling a dead machine using the boot file.

[Zorikos69]

what is the firmware accelerator and how do i get access to the bulletins?

[Rolandito]

Are you trying Pi6500pro or Pi6500e?
Pi6500 pro is external
Pi6500e is internal
that is is the first step