A30M Firmware upgrade

[Fabio Ferrari]

Hi,
I'm trying to update the firmware, as suggested by tech support, to understand if the bl touch that cames with the printer is defective or not.

Update the motherboard is not a problem the procedure is simple with the tool and the video guide on youtube.

The issue is for lcd, beacause for A30M lcd there are three other file than the one shown as example in the video guide. No info are available elsewhere.

Anyone managed the same issue?

Thanks in advance