---
tag: m0022
title: Release SD card
brief: Simulate ejection of the SD card
author: thinkyhead

requires: SDSUPPORT
group: sdcard

codes: [ M22 ]

notes:
  - Requires [`SDSUPPORT`](/docs/configuration/configuration.html#sd-card)

parameters:

examples:

---

If Marlin gets confused about the state of the SD card, this command can be used to simulate an ejection of the SD card.

Re-insert the SD card or use [`M21`](/docs/gcode/M021.html) to enable the SD card following [`M22`](/docs/gcode/M022.html).