Unable to do Herelink calibration

I’m trying to calibrate the sticks on my Herelink, but when i try to move the sticks just a little bit, they go to the very edge. this means i’m unable to finish the calibration.

i have tried to to a factory reset, through Android setting. Also using the flasher tool. Without any luck.

video:
https://drive.google.com/file/d/1m1pUG687F57fIeTvqsQnZnavjTFrcHiZ/view?usp=sharing