# ESC passthrough firmware update

**URL:** <https://discuss.px4.io/t/esc-passthrough-firmware-update/33649>\
**Category:** PX4 Autopilot\
**Created:** [August 4, 2023, 7:40pm UTC](https://discuss.px4.io/t/esc-passthrough-firmware-update/33649 "2023-08-04T19:40:57Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![moonmotor](https://discuss.px4.io/letter_avatar_proxy/v4/letter/m/5daacb/32.png) [@moonmotor](https://discuss.px4.io/u/moonmotor)\
**Post date:** [August 4, 2023, 7:40pm UTC](https://discuss.px4.io/t/esc-passthrough-firmware-update/33649/1 "2023-08-04T19:40:57Z")

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Been struggling with this for a week. New build. Try to take off in stabilize, very unstable, wants to tilt or yaw. Need ESC firmware update. Does PX4 have ESC passthrough? Otherwise, any hits on how to update? Thank you