# Multi Video Setting on Herelink **URL:** \ **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:** 10\ **Page:** 1
**Author:** ![Sven](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/sven/32/3367_2.png) [@Sven](https://discuss.cubepilot.org/u/Sven)\ **Post date:** [7 November 2021 11:42 UTC](https://discuss.cubepilot.org/t/multi-video-setting-on-herelink/7750/1 "2021-11-07T11:42:57Z")
Hi, Just noticed that in the Herelink Settings App / Air Unit tab there is a switch to activate „Multi Video“. Is there any function behind this already? Regards, Sven ---
**Author:** ![Alvin](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/alvin/32/1000_2.png) [@Alvin](https://discuss.cubepilot.org/u/Alvin)\ **Post date:** [8 November 2021 09:44 UTC](https://discuss.cubepilot.org/t/multi-video-setting-on-herelink/7750/2 "2021-11-08T09:44:48Z")
No. This is not ready and is disabled at the moment. ---
**Author:** ![Sven](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/sven/32/3367_2.png) [@Sven](https://discuss.cubepilot.org/u/Sven)\ **Post date:** [8 November 2021 09:47 UTC](https://discuss.cubepilot.org/t/multi-video-setting-on-herelink/7750/3 "2021-11-08T09:47:49Z")
Ok, Thanks. ---
**Author:** ![Fabio](https://discuss.cubepilot.org/letter_avatar_proxy/v4/letter/f/f4b2a3/32.png) [@Fabio](https://discuss.cubepilot.org/u/Fabio)\ **Post date:** [25 January 2022 10:45 UTC](https://discuss.cubepilot.org/t/multi-video-setting-on-herelink/7750/4 "2022-01-25T10:45:57Z")
Hi Alvin! Is there a prevision on when this function will be avaible? Right now it “kinda” works enabling “Multi Video” We can get double video stream with arducopter firmware and mission planner stream via hotspot. Sometimes it works great! But sometimes it won’t start the second video stream. Thank you for your help. ---
**Author:** ![Alvin](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/alvin/32/1000_2.png) [@Alvin](https://discuss.cubepilot.org/u/Alvin)\ **Post date:** [26 January 2022 04:22 UTC](https://discuss.cubepilot.org/t/multi-video-setting-on-herelink/7750/5 "2022-01-26T04:22:52Z")
We still can’t guarantee any schedule about this. And yes it is now kind of works. Put on a fan on the air unit if you want to try. ---
**Author:** ![Fabio](https://discuss.cubepilot.org/letter_avatar_proxy/v4/letter/f/f4b2a3/32.png) [@Fabio](https://discuss.cubepilot.org/u/Fabio)\ **Post date:** [28 January 2022 09:38 UTC](https://discuss.cubepilot.org/t/multi-video-setting-on-herelink/7750/6 "2022-01-28T09:38:58Z")
Hi Alvin, thanks for the hint. Yesterday we updated the air Unit from firmware AAU01210415 to the latest AAU01211129. Now in the AIRUNIT tab the toggle “multi video” is gone. Is there a way to enable this with new firmware or we need to downgrade the Airunit? BTW how to downgrade the airunit to the AAU01210415? Thanks you for your help. ---
**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")
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. ---
**Author:** ![Alvin](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/alvin/32/1000_2.png) [@Alvin](https://discuss.cubepilot.org/u/Alvin)\ **Post date:** [10 February 2022 06:13 UTC](https://discuss.cubepilot.org/t/multi-video-setting-on-herelink/7750/8 "2022-02-10T06:13:45Z")
There are no way to roll back as not running latest firmware is not a good practice. The option is removed because it is not ready yet. It is hidden as advance function and would require adb to enable it. ---
**Author:** ![Fabio](https://discuss.cubepilot.org/letter_avatar_proxy/v4/letter/f/f4b2a3/32.png) [@Fabio](https://discuss.cubepilot.org/u/Fabio)\ **Post date:** [10 February 2022 10:19 UTC](https://discuss.cubepilot.org/t/multi-video-setting-on-herelink/7750/9 "2022-02-10T10:19:50Z")
ok, Is there a simple way to turn it on using ADB? We would like to try to use this function. The previous firmware wasn’t so bad! Thanks for help. ---
**Author:** ![Alvin](https://discuss.cubepilot.org/user_avatar/discuss.cubepilot.org/alvin/32/1000_2.png) [@Alvin](https://discuss.cubepilot.org/u/Alvin)\ **Post date:** [14 February 2022 03:44 UTC](https://discuss.cubepilot.org/t/multi-video-setting-on-herelink/7750/10 "2022-02-14T03:44:39Z")
You will need to connect to each unit via adb (gcs and air unit) and run > adb shell setprop persist.multiple.videostream true and reboot After that you can access the 2 streams at > rtsp://(wifiIPongcs):8554/fpv\_stream > rtsp://(wifiIPongcs):8554/fpv\_stream1 Ensure something valid is connected to hdmi1 also otherwise hdmi2 wont work Remember to add a fan to cool down the air unit or it will get overheated soon.