# After esc calibration the escs just beep and the safety switch doesn't respond too

**URL:** <https://discuss.px4.io/t/after-esc-calibration-the-escs-just-beep-and-the-safety-switch-doesnt-respond-too/38739>\
**Category:** Uncategorized\
**Created:** [May 14, 2024, 12:16pm UTC](https://discuss.px4.io/t/after-esc-calibration-the-escs-just-beep-and-the-safety-switch-doesnt-respond-too/38739 "2024-05-14T12:16:41Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Aryan\_Mallick](https://discuss.px4.io/user_avatar/discuss.px4.io/aryan_mallick/32/14779_2.png) [@Aryan\_Mallick](https://discuss.px4.io/u/Aryan_Mallick)\
**Post date:** [May 14, 2024, 12:16pm UTC](https://discuss.px4.io/t/after-esc-calibration-the-escs-just-beep-and-the-safety-switch-doesnt-respond-too/38739/1 "2024-05-14T12:16:41Z")

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Hello guys,  
I’m using a pixhawk 2.4.8 and I loaded that with px4 1.13.3…after doing the whole setup, my escs would just beep constantly and even after I pressed the safety switch…it won’t stop beeping. I tried arming the drone which works but it doesn’t spin the motors. How should I fix this?

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**Author:** ![jcdonelson](https://discuss.px4.io/letter_avatar_proxy/v4/letter/j/7ea924/32.png) [@jcdonelson](https://discuss.px4.io/u/jcdonelson)\
**Post date:** [May 14, 2024, 3:47pm UTC](https://discuss.px4.io/t/after-esc-calibration-the-escs-just-beep-and-the-safety-switch-doesnt-respond-too/38739/2 "2024-05-14T15:47:31Z")

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Constant beeping means the ESC is not seeing a valid throttle signal.