Many months ago my Fp4 lateral buttons (up,down and the fingerprint button, although the fingerprint sensing part still works properly) stopped working (sometimes they briefly work again).
The A15 update seems to have slightly improved it but hasn’t fixed it, which makes me think it might be a firmware debouncing issue .
I already tried to reach out to consumer support( too many times!) as it is still on the extended warranty but received no response .