I have galaxy S 21 (Android 11)  e Mavic Mini . I have installed dji fly 1.4.0 but when i connect drone i don't see the cam on my screen.
the camera is working properly  infact take video and picture but it's impossible drive drone without video.

Hello there. I am sorry for the trouble this has caused and thank you for reaching out. Kindly please check if the DJI Fly application that you have installed is already in the latest version. For Android devices, you can download the latest DJI Fly application from this link  https://www.dji.com/downloads/djiapp/dji-fly . Kindly please keep us posted for further assistance. Thank you.

fabga64 if you search the forum you'll find a lot of people with this issue.

I think this issue is only occurring on Galaxy S21s that have an Exynos processor.  Works great on my S21 but it has a Snapdragon processor.  This same type issue occurred when S10 first came out with Exynos processors also.

DowntownRDB Posted at 5-10 06:36
I think this issue is only occurring on Galaxy S21s that have an Exynos processor.  Works great on my S21 but it has a Snapdragon processor.  This same type issue occurred when S10 first came out with Exynos processors also.

i have an S21 with exynos 2100 chipset

I have galaxy S 21 (Android 11)  e Mavic Mini . I have installed dji fly 1.3.0 and camera is working properly
.

fabga64 Posted at 5-11 00:05
I have galaxy S 21 (Android 11)  e Mavic Mini . I have installed dji fly 1.3.0 and camera is working properly
.

Nice, glad you found a work around.

I'm having the same issue with my S21.  Camera works and takes video but all I get is a black screen.  Tried to find the 1.3.0 version of Fly but everything points to 1.4.0.  So, my mini looks great on my desk but is not safe to fly. Have the SM-991U1 with Exynos CPU and Snapdragon chipset.  Really frustrated.

And as a side note, just went to the support page and found the following:
Recommended devices

Android Version V 1.4.0
Requires Android 6.0 or above.
Samsung Galaxy S21, ...

So the phone is supposed to be supported.  I have the small version, not one of the larger ones.

CurtMiller66 Posted at 5-11 11:28
I'm having the same issue with my S21.  Camera works and takes video but all I get is a black screen.  Tried to find the 1.3.0 version of Fly but everything points to 1.4.0.  So, my mini looks great on my desk but is not safe to fly. Have the SM-991U1 with Exynos CPU and Snapdragon chipset.  Really frustrated.

https://www.apkmirror.com/apk/dji-technology-co-ltd/dji-fly/
try this link apk mirror

fabga64 Posted at 5-12 02:08
https://www.apkmirror.com/apk/dji-technology-co-ltd/dji-fly/
try this link apk mirror

and install dji fly version 1.3

The 1.3 version does fix the problem for me.

CurtMiller66 Posted at 5-13 04:49
The 1.3 version does fix the problem for me.

WHAT TYPE OF S21 DO U HAVE? I HAVE AN S21 STANDARD EXYNOS 2100 CHIPSET ARM8-A PROCESSOR
NO S21 ULTRA AND THIS VERSION WORK PERFECTLY.

fabga64 Posted at 5-11 00:00
i have an S21 with exynos 2100 chipset

Same for me, there is a problem that dji should resolve to allow S21 Ultra Phones works with this processor