I'm planning to ceiling mount my x20 and xe75. Will I be having any issue having the hardware upside down? I'm planning to diy my own mount. it will look better on the ceiling than on my wall mount...

@Heidi_Alp thank u very much for the info. And there won't be any issue with my current setup where the v1 1.5.0 is my main deco

My main deco x20 is firmware 1.5.0 but my second x20 is firmware 1.1.3. Just curious why isn't both my deco the same firmware.