Prusa-firmware: No Z High shown on Display just a ? FW 3.4.1 on mk2.5

[galluslongus]

I compiled 3.4.1 on my own cause of PWM_MOTOR_CURRENT Settings. I use different Motors.
After Flashing new FW Z High on the Display is shown just the "?".
I did flashing compiled FW from Prusa´s website and theres all like it should.
I just edited the configuration_prusa.h for PWM_MOTOR_CURRENT settings, nothing else.
Anyone an idea?

Thanks
Michael

[RPisarew]

I have the same issue. I cloned the MK3 branch, adjusted the homing currents and stall guard thresholds, because I got 3 of this steppers for x/y/e and they didn't home properly with the default settings.
After a G28 is see only a '?' at the z-positon on the LCD.
When I try to run the first-layer calibration, than I see only a '-' in the z-offset.

[Barnabasek]

See #1117 and #1157

[RPisarew]

@Barnabasek Thank you very much!, worked well for me.

[galluslongus]

I have 7 of the platform.txt in different folders on my system. Its a macbook pro / High Sierra.
I pasted the line in all these files BEFORE i opened this post with no luck.
Is it a hidden file?

[Panayiotis-git]

The correct file is the one referenced at the https://github.com/prusa3d/Prusa-Firmware/issues/1117:
hardware/arduino/avr
The file already contains the property and you should change the value.

If the problem still exists after the change, consider reinstalling the arduino IDE (prefer the portable version).

[RPisarew]

@galluslongus create a '~/Library/Arduino15/packages/rambo/hardware/avr/1.0.1/platform.local.txt' with this as content

compiler.c.elf.flags=-w -Os -Wl,-u,vfprintf -lprintf_flt -lm -Wl,--gc-sections

[galluslongus]

Awesome, that platform.local.txt did it. Thanks a lot to all Members who helped.