Geeetech

Hi
I have an A10 and upgraded the firmware to try and fix the part cooling fan problem. After upgrading to the 1.1.8 firmware I get:
Flashing X Y Z indicators on LCD
Thermal runaway error on LCD
No extrusion when trying to print (in trying a manual extrusion the filament does extrude properly}
Can I revert to to an older firmware I guess is the question and where would I find it on the web
Thanks

Thanks for the reply vert, I did use Aurdino 1.8.5 to compile and upload, only changing the line //#define FAN_SOFT_PWM to #define FAN_SOFT_PWM to try to resolve the parts fan issue.
Now have various issues,park speed greatly increased, clicking extruder feed, thermal runaway warnings, flashing X Y Z axis on the LCD.
Non of the these things were present before the flash, that's why I wondered if I could "reset" the board

Hi,

I have more ore less the same issue after the upgrade to 1.1.8 stock firmware/arduino 1.8.5 (which I had to fix it for extruder motor direction which were wrong...) but still able to print even if the display X/Y/Z indication are flashing as yours (I have GT2560 Rev.B mb)

Then I wanted to step back to firmware 1.0.4 but it seems nobody has it out there... At least to find the source code in order to check the settings to replicate on 1.1.8 or 1.1.9.

Vert, can you help here? Or any other suggestion?

Thanks in advance!

You can invert the direction of the motor in configuraion.h file.
The LCD shows"x? y？z?"means it can't get coordinates.
You need to control it homing and then it will shows"X0 Y0 Z0"

Thank you vert and William! About XYZ flashing I thought it was the LCD char set settings but I've tried what you suggest and it's ok.

About extruder direction I've set it in the configuration.h as well as the activation of "#define FAN_SOFT_PWM" as Kenny so it was not a problem but what have surprised me is that Geeetech posted a not well configured source code... Fortunately I was a firmware developer so I've some knowledge...

I'm trying also to build the my own personal version of v1.1.9 configuring the original marlin on github starting from 1.1.8 but I would like to have also the old 1.0.4 Geeetech source code to verify some settings (In reality I had very good results printing with it...).

Can you help here?

Hi,GP70
Pls check the PM info.