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Problem with the controller for the H520 drone

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I have a H520 drone and a software problem on ST16. There is only partial software (no gimbal calibration and other features). Below are the pictures. It supposedly shows the correct files when updating and that there is the latest version but it's like only half of it. What is the problem?
 

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I have a H520 drone and a software problem on ST16. There is only partial software (no gimbal calibration and other features). Below are the pictures. It supposedly shows the correct files when updating and that there is the latest version but it's like only half of it. What is the problem?
"...no gimbal calibration..."
None of your images showed the pages that would contain the controller gimbal calibration. Try this:
H520 ST16S Gimbal Calibration.jpg

"...and other features"
Your images seem very similar to mine. It is hard to tell what is normal without knowing which controller firmware version by version ID you have, where you obtained the controller firmware, and if any aftermarket APPS have been added. Once we know that, and specifically which items you are missing, we can make more accurate comments.

If you press and hold the center button below the screen, the controller will take a screenshot. You can then transfer the screenshot using SD card or USB as an easier way to get images to post. The screenshots are in file manager, under the "pictures" folder.
 
The green progress bar for connecting the drone stops after a while, then moves a little and stops again. There are various messages along the way until it finally reaches the end. There is a camera control only the arrow (the yellow kind) showing where the “camera is looking” works with a long delay.
The camera itself (CGOET) seems to work correctly.
After calibration, everything seems to work correctly, only the potentiometers K1, K2, K3 show different values (they don't go to 0), should this be the case?
In addition, apparently there was some kind of update done here and it is not clear where the files were downloaded from.
Theoretically everything is green - also after updating the files there is no gps, gyro, gimbal calibration option in the menu.
Probably a version incompatibility. Security settings are also missing (as if half the settings are missing) :(
 

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and another 5 images
 

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