Hello everyone,
I bought the Hantek DSO2C10. After I came across this forum on YouTube, I "read through" it first.
After I saw that the device can also be hacked, I unscrewed it, of course. To my delight, I saw that all the necessary components were already installed on the circuit board. I then made a backup of the software and then set the oscilloscope to 2D15. As you can see, it worked. I also stuck heat sinks on the two large ICs and installed a fan. Now I'm creating a fan controller.
Thanks to everyone who made this possible.