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After replacing the hard drive. All went well BUT -now my mic does not work. It’s the single hole on the bottom. Any ideas anybody? I made sure the hole was not covered up.
I’m sure you have a simple problem! Many tape setups sold failed to address the needed gap for sound to reach the mic. Review Step 3 in this guide iMac Intel 21.5" Retina 4K Display (2017) Adhesive Strips Replacement Sadly once the tapes are are you can’t really reuse them so you’ll need to get a fresh set iMac Intel 21.5" (2012-2019) Adhesive Strips