How do I check it?Check the ST16.
The drone's flight controller thinks the red button is active.
It sees the throttle channel at -25%
DO NOT arm the drone until this problem is fixed.
If you try to launch you have NO altitude control.
I don't know if you can check the actual value on the ST16S. That was possible on the ST16, but I don't think it is available for ST16S. However, you can go to "RC Monitor" and check the On/OFF reading for "B1" as you press and release the red button. That feature is available for HPlus, I assume it is available for H520?How do I check it?
Thanks for the answer I understand we are on the way to solving the problem, from the outside the button looks fine. Is getting to the inner spring a problem?The picture indicates a stuck B1 button. It could be a failure inside the button, but the first remedy would simply be to grip the red part of the button and see if you can pull it out.
The red part normally extends about 4mm (~0.16 inch) above the silver collar.
Thanks for the answer I understand we are on the way to solving the problem, from the outside the button looks fine. Is getting to the inner spring a problem?
Thanks for the answer I only have the latest version of how I get an old version of the softwareI had this same thing happen a number of times. In my case it turned out to be a software glitch that had developed for reasons known only to the system. I rolled back a couple of versions of the software and then did a OTA update to the latest version and the problem was fixed. The glitch has affected both of my H520 systems at different times and the fix was the same.
It might work for you, hope it does.
If there is a glitch in the software on the ST16s, it can be removed by doing a factory reset of the controller and then installing the current firmware. The reset of the controller is the same for the H520 and the H Plus.Thanks for the answer I only have the latest version of how I get an old version of the software
Ok, so I deleted the tablet according to the guide, but still a button B1 is on....If there is a glitch in the software on the ST16s, it can be removed by doing a factory reset of the controller and then installing the current firmware. The reset of the controller is the same for the H520 and the H Plus.
If there is any data stored on the ST16 that you wish to save, you should do so before the reset.
You can download the updaterapp.apk by clicking this link:
I would love for you to send me an earlier version because I can not find another solutionIf you message Haydn (one of the members in the forum) he might be able to sort that for you. If you are in the US possibly Caroljna Drones or Yuneec Skins may be able to assist with the firmware or in Europe Yuneec Europe seems to be very helpful.
I have got access to my pc for the next couple of days so I can't assist just now.
Gideon,I would love for you to send me an earlier version because I can not find another solution
If B1 is still not working correctly after resetting the controller, then it is not a firmware problem. You will need to inspect the button as @WTFDproject has suggested. That will require opening up the ST16.Ok, so I deleted the tablet according to the guide, but still a button B1 is on....
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