| Symptom | Likely Cause | Solution | | :--- | :--- | :--- | | Intermittent signal when device vibrates | Worn or deformed latching arms | Replace connector (receptacle or plug). | | High VSWR > 2:1 | Improper mating (gap between plug and receptacle) | Re-seat firmly until audible click. | | No continuity center pin | Broken solder joint due to cable pull | Reflow PCB pad; add strain relief. | | Signal degradation above 3 GHz | Impedance mismatch due to debris in interface | Clean with isopropyl alcohol and compressed air. |