# Multi Video Setting on Herelink

**URL:** <https://discuss.cubepilot.org/t/multi-video-setting-on-herelink/7750>\
**Category:** HereLink\
**Created:** [7 November 2021 11:42 UTC](https://discuss.cubepilot.org/t/multi-video-setting-on-herelink/7750 "2021-11-07T11:42:56Z")\
**Posts on this page:** 1\
**Showing post:** 7

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**Author:** ![Fabio](https://discuss.cubepilot.org/letter_avatar_proxy/v4/letter/f/f4b2a3/32.png) [@Fabio](https://discuss.cubepilot.org/u/Fabio)\
**Post date:** [9 February 2022 16:54 UTC](https://discuss.cubepilot.org/t/multi-video-setting-on-herelink/7750/7 "2022-02-09T16:54:47Z")

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Hi there,  
can somebody tell me how to downgrade the airunit firmware to the AAU01210415?

The AAU01210415 is the firmware which is included in the [Herelink Stable June 2021 - #13 by MadRC](https://discuss.cubepilot.org/t/herelink-stable-june-2021/6728/13)

the last update however bring the firmware to the AAU01211129.  
Thanks in advance for any help.

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