Detailed Answer
Key crosstalk (pressing A also triggers B) troubleshooting: 1. Water/moisture ingress in keys (most common; dry and test); 2. Key cap stuck (foreign object); 3. Key circuit aging (factory service); 4. Pairing conflict (re-pair); 5. Receiver relay sticking (factory service). LIDEER LD series crosstalk is mostly moisture ingress and recovers after drying; persistent crosstalk means stop using immediately and send for repair.
| Common | Water/moisture |
| Stuck key | Clear foreign object |
| Severe | Factory service |
Note:Key crosstalk risks unintended movement; stop using and troubleshoot immediately.