Common Siglent Troubleshooting
Problem: Oscilloscope Boots but Freezes
Causes
Firmware corruption
Internal storage issue
FPGA boot error
Recovery
Disconnect probes
Factory reset
Reflash firmware
Check internal power rails
Problem: Touch/Buttons Not Responding
Causes
Front panel ribbon cable loose
Encoder failure
Front panel MCU issue
Inspection
Open front panel
Reseat ribbon cable
Test rotary encoders
Problem: Waveform Flickering
Causes
Trigger instability
Noisy signal
Sampling mismatch
Fix
Adjust trigger level
Use edge trigger
Reduce time base
Enable averaging
Problem: Scope Does Not Trigger
Causes
Wrong trigger source
AC coupling selected
Trigger slope mismatch
Recommended Settings
Trigger mode = AUTO
Trigger type = EDGE
Source = CH1
Coupling = DC

Siglent troubleshooting documentation emphasizes checking trigger source and trigger mode first.