<p>I performed a factory reset and the end-stop situation has normalized.</p>

CC BY-SA 4.0
2022-07-11T13:05:59.923Z
2022-07-11T13:05:59.923Z
Jo Zambon
<p>While waiting for BTT technical support to reply to my email, I thought I would ask this community for help.</p>
<p>I own an Ender 3 Pro, upgraded 2 years ago with BTT SKR Mini E3 V2.0 + TFT35 E3 V3.0. Firmware MARLIN BUGFIX-2.0.x of 23/03/2020. (no change).</p>
<p>Everything OK, a significant upgrade from stock hardware.</p>
<p>Today I installed the second Z-axis (with its stepper motor), connecting it to the output (ZBM) of the motherboard.</p>
<p>The Stepper works fine, but all the limit switches (x, y, z) don't stop the stepper.</p>
<p>The end stops responding correctly to <code>M119</code> ('open' state), when pressed manually they change to the 'triggered' state. But they don't stop the relative axis stepper motor when I perform (i.e.) a homing.</p>
<p>Can you suggest me a solution?</p>

CC BY-SA 4.0
2022-07-10T11:28:05.367Z
Hi Jo and welcome to SE.3DP!  :-)
Greenonline
<creality-ender-3>
ENDER 3 PRO - Install Dual-Z - Endstops trigger OK, but don't stop the stepper
Jo Zambon
# ENDER 3 PRO - Install Dual-Z - Endstops trigger OK, but don't stop the stepper

(Asked by: username_0 on 2022-07-10)

While waiting for BTT technical support to reply to my email, I thought I would ask this community for help.

I own an Ender 3 Pro, upgraded 2 years ago with BTT SKR Mini E3 V2.0 + TFT35 E3 V3.0. Firmware MARLIN BUGFIX-2.0.x of 23/03/2020. (no change).

Everything OK, a significant upgrade from stock hardware.

Today I installed the second Z-axis (with its stepper motor), connecting it to the output (ZBM) of the motherboard.

The Stepper works fine, but all the limit switches (x, y, z) don't stop the stepper.

The end stops responding correctly to `M119` ('open' state), when pressed manually they change to the 'triggered' state. But they don't stop the relative axis stepper motor when I perform (i.e.) a homing.

Can you suggest me a solution?

**Tags:** creality-ender-3

> **Comments:**
> **username_1**: Hi Jo and welcome to SE.3DP!  :-)  

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## 1 answers

### Answer by username_0 on 2022-07-11. Score: 1

I performed a factory reset and the end-stop situation has normalized.


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