Introduction
Are the buttons on your radar not responsive? If so, the button board could be damaged. Follow this guide to replace your button board.
Tools
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            Detach the orange flap on the motherboard. 
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            Carefully remove the motherboard from the grey plastic frame. 
 
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                            Conclusion
                          
                          To reassemble your device, follow these instructions in reverse order.
Where can I purchase the BUTTONS ???
Sergio -
I tried to look for the buttons on Google and eBay but couldn't find them.
Sergio -