I'm trying to troubleshoot my second hand (bought as for parts) Sonos One Gen 2. It is working fine, but the flex cable leading to the button that has to be pressed for reset is broken. Which means the button isn't working and it cannot be reset. Which means I have to shorten pins on the board, trying to reset it (as if the button is pressed).

Had anyone been in this situation before? I'm planning to try with a multimeter tomorrow, but perhaps anyone know already out of experience which pins to shorten.

Anyone that can help with this? The first picture is the flex cable, the second one is a close up of the board, where the cable enters the board.