iOS 8.0.1 Cause “No Service” on Your iPhone? Here’s How to Fix It
The iOS 8.0.1 update is causing a lot of iPhone owners grief, particularly those who have a new iPhone 6 or iPhone 6 Plus, where it has apparently killed the cellular signal of those devices, leading to a persistent “No Service” problem. Additionally, Touch ID has stopped working on those devices. Obviously this is not good, and users who have not yet updated are advised to avoid the update until a fix has been released by Apple.
If you already updated to iOS 8.0.1 and are now experiencing the cellular connectivity failures and Touch ID issues, you have three choices: wait for an update from Apple which is sure to arrive as soon as possible, restore through iTunes, or downgrade to iOS 8. The latter two resolutions we’ll cover here.
Note that downgrading from iOS 8.0.1 back to iOS 8 is nearly the same as downgrading from iOS 8 back to iOS 7.1.2, but you will need iOS 8.0 IPSW files rather than iOS 7.1.2 firmware files. The two devices most impacted by the iOS 8.0.1 bugs are iPhone 6 and iPhone 6 Plus, those two firmware files are available below directly from Apple servers. Users can also try to simply restore through iTunes, which maintains the device on iOS 8.0.1 while resolving the connectivity problem.
Option 1: Use iTunes Restore to Fix the Bugs
Some users have reported successfully resolving the No Service bug by simply choosing to ‘Restore’ in iTunes without having to specifically downgrade. This is super simple:
- Connect the iPhone to a Mac or PC running the latest version of iTunes
- Choose “Restore” in iTunes
- Restore your most recent backup to the iPhone when the restore process is complete
Let us know if this Restore option works for you. If it doesn’t, you can downgrade to iOS 8 which definitely works to regain cellular service and Touch ID functionality.
Option 2: How to Downgrade from iOS 8.0.1 to iOS 8.0 on iPhone
Download the appropriate firmware file for your iPhone below. These must download as IPSW files, it can help to right-click and choose “Save As”, be sure the file saves with a .ipsw file extension:
Once you have the iOS 8.0 firmware file, you can use iTunes to downgrade from iOS 8.0.1 back to the working release of iOS 8.0.
- Connect the iPhone to a computer and launch iTunes
- Option+Click on “Restore” (Alt+click for Windows) and select the newly downloaded iOS 8.0 IPSW file to restore to
- Let the restore complete, this will downgrade the iPhone to iOS 8.0
- When finished, you can choose to restore from your most recent iOS 8.0 backup
This is likely the best temporary solution to resolve the iOS 8.0.1 bugs for iPhone 6 and iPhone 6 Plus users, at least until Apple releases a proper bug fix.
Let us know in the comments if you have found another solution.