RDWelder-SW handheld welding system cannot be connected properly

Check according to the following points
1. Is there a mismatch between the board version and the panel version.                           
2. Check if the HMI panel wiring is correct.                              
3. Check if the focusing lens of the gun head is damaged.                            
4. Check if the protective lens is dirty.                                   
5. Check the red light offset parameter and whether the red light emits light

Check if the focusing lens of the gun head is damaged and if the protective lens is dirty.  

Insufficient or unstable power supply of the device may cause connection failure, especially when connected wirelessly, and low battery power can also affect performance.