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I replaced the battery in my iPhone 8 last night and had some difficulty getting the Wi-Fi Diversity Antenna’s connector attached again. I got it in, I think… while I haven’t noticed any problems with Wi-Fi connectivity (or cellular, for that matter) is there any way to know for sure that that particular antenna is working properly? I understand it is actually a second antenna so I’m wondering if I did not, in fact, connect it properly and that I am still achieving connectivity with the first antenna. Thanks!

Hi It’s probably fine if you haven’t noticed any issues but there are some ways to check! If you open the device again and get a thin tool and just start moving it in different directions (in small amounts)if it stays on it’s good but if it falls off quite easily it wasn’t on probably Hopefully this helps Any questions please ask Thanks:-)