Common Hantek Problems
Problem: USB Oscilloscope Not Detected
Causes
Driver failure
USB power issue
Windows driver signature problem
Fix
Reinstall drivers
Use USB 2.0 port
Disable driver signature enforcement
Replace USB cable
Problem: Noise on All Channels
Causes
Poor grounding
Cheap probes
USB interference
Solution
Use shielded USB cable
Connect proper earth ground
Use better probes
Problem: Incorrect Frequency Reading
Causes
Sampling rate limitation
Aliasing
Wrong time base
Solution
Increase sample rate
Reduce signal frequency
Use proper triggering