The update to iOS 8.0.2 fixes the issues with cell signal and Touch ID, as well as the the previous bugs 8.0.1 aimed to squash. No matter if you took the update and have had a de facto iPod the past 24+ hours, or whether you reverted back to iOS 8.0, you'll want to install this update pronto.
Head to Settings -> General -> Software Update to grab the over the air update. We've done this on both our iPhone 6 and 6 Plus, as well as iPhone 5S and 5—all is well in iOS land.
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