I purchased a Mavic Mini in January 2020, and used a Samsung A71, which has worked fine (though it was a big phone that barely fitted between the clamps).
But in August I had to swap to A54, and downloaded the DJI Fly app. It did connect to the drone, and I can fly the drone, but the image is poor or missing (both for video and stills).
The following message comes up on the screen: Image transmission signal weak.
What can be the problem here?

Hello there. I'm sorry about the inconvenience. Have you already tried flying from a different location? You can also refer to the image below for the optimal transmission:

Please keep us posted. Have a great day ahead.

DJI Tony Posted at 9-5 03:36
Hello there. I'm sorry about the inconvenience. Have you already tried flying from a different location? You can also refer to the image below for the optimal transmission:
[view_image]
Please keep us posted. Have a great day ahead.

Yes, I have tried different locations, and the antennas are set and used as before also as the picture describes.

Kaimor Posted at 9-5 10:47
Yes, I have tried different locations, and the antennas are set and used as before also as the picture describes.

Hello there. The main factors that affect the image transmission distance are firmware, signal transmitter power, attenuation, obstruction, and electromagnetic interference. Please check the notes below and see if it will help:
1. Check the aircraft image transmission distance in your country.
2. Check if the aircraft firmware, remote controller firmware, and app versions are the latest. If not, please update the firmware to the latest versions first.
3. Check the remote controller antenna position. Please place your remote controller antenna in the optimal position.
4. Keep note of tree and house obstructions near the flying field. After flying for a period, note the obstruction near the horizontal line to ensure that there are no visible obstructions in the aircraft's direction.
5. Check whether there is significant interference in the flight environment. Please turn on the Image Transmission Settings to check the real-time channel quality. Or provide a screenshot or a recorded video for us to see significant interference. If the interference is significant, we recommend changing the flight environment. Common electromagnetic interference sources include but are not limited to Wi-Fi hotspots, routers, Bluetooth devices, high-voltage power lines, high-voltage transmission stations, mobile phone base stations, and television broadcasting towers.
If the issue persists after following the steps above, kindly provide us a video of the operation together with the screenshot of the About page showing the RC firmware, Aircraft firmware, and App version.
Some steps might have already been done but I added it for the others. Please keep me posted. Have a great day ahead.

image transmission signal weak how it can i solve???

djiuser_idJqbciJs8MI Posted at 8-11 01:40
image transmission signal weak how it can i solve???

Hi there,
thank you for reaching out.

May we confirm if you are using Mavic Mini like original poster? If yes, you may follow the troubleshooting steps provided above and see if you can isolate the issue.

Looking forward to your response. Thank you.

DJI Diana Posted at 8-11 02:32
Hi there,
thank you for reaching out.

Hi, I finally fixed it: uninstalled the app, and installed it again, that solved the problem.

Kai Mortensen Posted at 8-11 11:59
Hi, I finally fixed it: uninstalled the app, and installed it again, that solved the problem.

Hi there,
thank you for reaching out.

We appreciate the update provided and are glad the issue has been resolved.

Should you have any other questions, kindly message us for assistance. Thank you.