[BUG] Extruder is not working

[sarthakmitkari]

Did you test the latest bugfix-2.1.x code?

Yes, and the problem still exists.

Bug Description

After I had this issue: #8775, I tried to update to the latest bugfix release. Now, the extruder motor will not work.
I have tried:

Putting the extruder onto the Z axis, which worked, so the motor is still good
Putting a different driver onto the extruder, which did not work
Innumerable permutations of the config file (see attached)
New Arduino mega in case I'd burned out a pin

(Yes, preheat the hotend and try it. To change in configuration.h, Line #421 (or nearby) comment out "define PREVENT_COLD_EXTRUSION". (Replace with "/#define PREVENT_COLD_EXTRUSION"). )
this also not working

Bug Timeline

No response

Expected behavior

No response

Actual behavior

No response

Steps to Reproduce

No response

Version of Marlin Firmware

1.1x

Printer model

custom

Electronics

RAMPS 1.4

LCD/Controller

No response

Other add-ons

No response

Bed Leveling

None

Your Slicer

None

Host Software

None

Don't forget to include

• A ZIP file containing your Configuration.h and Configuration_adv.h.

Additional information & file uploads

No response

[ellensp]

No hardware details given (something Arduino mega based, probably a ramps) and no Configuration files.
There is nothing to go on here

Please fill out the issue template and attach your config files

[sarthakmitkari]

No hardware details given (something Arduino mega based, probably a ramps) and no Configuration files. There is nothing to go on here

Please fill out the issue template and attach your config files

i used Arduino mega 2560 and ramps 1.4 with a4988 drivers and im not able to upload code file ,how can i ?

[ellensp]

No config files, nothing to go on

This Issue Queue is for Marlin bug reports and development-related issues, and we prefer not to handle user-support questions here. (As noted on this page.) For best results getting help with configuration and troubleshooting, please use the following resources:

• MarlinFW.org Marlin Documentation
• RepRap.org Marlin Forum
• Facebook Group "Marlin Firmware"
• Facebook Group "Marlin Firmware for 3D Printers"
• Marlin Configuration on YouTube
• 3D Printing Discord server. Join link: https://discord.gg/3dprinters
• Marlin specific Discord server. Join link: https://discord.gg/n5NJ59y

After seeking help from the community, if the consensus points to a bug in Marlin, then you should post a bug report.