Apple released iOS 8.0.1 earlier today that brought HealthKit app support and other bug fixes.
Unfortunately, it looks like Apple introduced new bugs with the release of iOS 8.0.1.
We received reports that the update causes cell service and Touch ID issues. Users constantly see ‘Searching’ or ‘No Service’ in the place of the carrier’s text. In addition, Touch ID is completely broken. From what we understand, the issues are centered around the iPhone 6 and iPhone 6 plus — other iPhone users are not reporting any major issues.
We recommend that users hold off on updating, until Apple releases another update to fix these issues. If you’ve already downloaded, you can downgrade to iOS 8 for a limited time.
- Turn off Find my iPhone via Settings > iCloud
- Download iOS 8 for iPhone
- Make sure you’re on the latest version of iTunes. Go to About and then Check for Updates.
- Launch iTunes on your Mac or PC.
- Connect your iPhone 6 or iPhone 6 Plus to iTunes via Lightning to USB cable.
- Hold down Option (Mac) or Control (Windows) click on “Check for Update”.
- Choose the iOS 8 firmware file (.ispw) you downloaded in step 2.
- Let iTunes do its thing
- Once you’re back up and running Turn Find my iPhone back on.
If you can’t turn off Find my iPhone or are otherwise having trouble, put your iPhone 6 or iPhone 6 Plus into DFU mode first and then Restore with iTunes. (You can restore again from your last iCloud backup later to get your stuff back.)