How to Fix Hardware Issues on an iPhone

Introduction

This guide will walk you through troubleshooting steps for common iOS hardware issues.

? What issue are you having with your iOS device?

  1. Short battery life
  2. Will not boot
  3. Device is unresponsive
  4. Touch ID sensor does not work
  5. Issues with Wi-Fi, Bluetooth, or Cellular service
  6. Speaker Issues

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This guide will walk you through troubleshooting steps for common iOS hardware issues.

The way to show all running apps on an iOS device varies with the model you have:

  • Older iOS devices, up to the iPhone X, still come equipped with a circular home button beneath the screen.
  • Newer iOS devices, beginning with the iPhone X, no longer come equipped with the circular home button beneath the screen.

On iOS Devices with a Home Button

  1. Double-press the Home button quickly.
    Home button highlighted on iOS device.

On iOS Devices Without a Home Button

  1. Swipe up from the bottom of the screen and pause slightly in the middle of the screen.
    Arrow showing slide direction on iOS screen.
  1. You will now see a list of apps that are currently open. Swipe up on any of the apps to close them.
    Recent programs screen with arrows indicating to swipe up on an app

Powering off an iPhone.

  1. Hold down the lock / power button.
  2. Slide to power off when prompted.
  3. Wait until the phone is off.
  4. Hold down the lock / power button until you see the Apple logo.
  1. When an update is available the App Store will show a red circle next to it. Open the App Store.
    App Store highlighted on iOS screen.
  2. Choose Updates at the bottom, then choose Update All on the top-right.
    Updates and Update All options highlighted in iOS Updates.
Background App Refresh allows apps to refresh their content in the background while connected to Wi-Fi. Disabling any non-essential apps may improve battery life.
  1. Open the Settings app on the home screen.
    Settings icon.
  2. Tap on General.
    Settings menu with General selected. Screenshot.
  3. Tap on Background App Refresh.
    General settings with Background App Refresh selected. Screenshot.
  4. Toggle individual apps on/off to decide if they will update in the background.
    Background App Refresh settings with On Off toggle. Screenshot.
  1. Open Settings.
    iOS Settings.
  2. Go to Bluetooth.
    iOS Bluetooth
  3. Tap the toggle switch to the right of Bluetooth to turn it off.
    Bluetooth toggle switch highlighted in iOS settings.
  1. Open the Settings app on the Home page.
    Settings icon.
  2. Tap on Wi-Fi.
    Settings menu with Wi-Fi selected. Screenshot.
  3. Toggle Wi-Fi On/Off to Enable/Disable Wi-Fi.
    Wi-Fi settings with radio toggled. Screenshot.

This function is not available on all iOS devices.

Low Power Mode temporarily reduces power consumption until you are able to charge your phone. This is done by turning off functions such has mail fetch, Hey Siri, background app refresh, automatic downloads, and some visual effects.

  1. Open the Settings app on the home page.
  2. Tap on Battery.
  3. Toggle Low Power Mode On/Off to Enable/Disable this feature.
    Battery settings with Low Power Mode button toggled. Screenshot.

Your iPhone may be low on charge. Go ahead and plug it in and allow it to charge.
An iPhone being charged

To forcibly restart your device hold the sleep/wake button and the Home button at the same time for approximately 5 seconds until you see a white apple. Depending on the type of iOS device you have the Sleep/Wake button may be located in different locations.

On the side:
Example smartphone with wake button on side.
On the top:
Example smartphone with wake button on top.

This operation will completely wipe all data and info from the device. If your device was logged into iCloud, you will be prompted to enter your iCloud credentials before you can use the phone after the restore is completed.

  1. Connect your iOS device to your computer and open iTunes. If you don't have a computer, borrow one from a friend, or go to an Apple Retail Store or Apple Authorized Service Provider.
  2. While your device is connected, force restart it:
    • On an iPhone 8 or iPhone 8 Plus: Press and quickly release the Volume Up button. Then press and quickly release the Volume Down button. Finally, press and hold the Side button until you see the recovery mode screen.
    • On an iPhone 7 or iPhone 7 Plus: Press and hold both the Side and Volume Down buttons at the same time. Keep holding them until you see the recovery mode screen.
    • On an iPhone 6s and earlier, iPad, or iPod touch: Press and hold both the Home and the Top (or Side) buttons at the same time. Keep holding them until you see the recovery mode screen.
      iPhone entering restore mode.

  3. Once in recovery mode, iTunes will prompt you to Restore or Update, choose Restore.
    Recovery mode with Restore option selected. Screenshot.

  4. Click on Restore and Update.
    Restore confirmation screen with Restore and Update option selected. Screenshot.

  5. You may be prompted to download the firmware for your devices. If this happens select Next to continue.
    Firmware summary screen with Next button selected. Screenshot.

  6. The download will start. Leave your device plugged in and once the download finishes it will start the restore. You can view your progress of the download by clicking the downloads button that appears while downloading is in progress.
    Download progress screen. Screenshot.

    The firmware files are large in size (typically over 2GB). It may take a long time depending on your internet connection to complete the download. If your device leaves recovery mode during this step, wait for the download to complete before attempting to place your device in recovery mode again. This way the download will not have to start over.

  7. Once the restore is complete (which takes approximately 15 minutes), you will be asked if you want to restore from a backup. Use the following guidelines to decide which option is the best.
    Setup As New This is the suggested setup if you are resetting your device to troubleshoot issues. This will set up the device like you first purchased it and will not carry over any software issue you may have had before restoring.
    iCloud Restore iCloud restores are the suggested method if you are swapping to a new device. It is recommended to do this step when you will be on a Wi-Fi connection for good period of time as they may take awhile to finish.
    iTunes Restore iTunes restores are the suggested method if you normally since your device solely with iTunes.
     

To forcibly restart your device hold the sleep/wake button and the Home button at the same time for approximately 5 seconds until you see a white apple. Depending on the type of iOS device you have the Sleep/Wake button may be located in different locations.

On the side:
Example smartphone with wake button on side.
On the top:
Example smartphone with wake button on top.

The following steps will reset your iOS preferences to defaults. Your applications and data will not be removed.

  1. Select Settings.
    iOS Settings.
  2. Select General.
    Settings with General highlighted.
  3. Select Reset.
    General settings with Reset highlighted.
  4. Select Reset All Settings.
    Reset settings with Reset All Settings highlighted.
  5. Enter your iPhone's passcode (if prompted), and on the following confirmation screen, select Reset All Settings.
    Reset all settings prompt with Reset All Settings highlighted.

Restoring your device will erase all data from your iOS device. Prior to performing a restore, you may want to perform an iCloud backup or a manual backup in iTunes.

Before restoring the device, we must disable the Find My Device from your iOS device.

  1. Open Settings from the Home Screen.
    Settings icon.
  2. Tap on Accounts & Passwords.
    Settings menu with Accounts and Passwords selected. Screenshot.
  3. Tap on your iCloud account.
    Accounts and Passwords with iCloud account selected. Screenshot.
  4. Tap on Find My iOS Device.
    iCloud accounts settings with Find My device selecteed. Screenshot.
  5. Toggle Find My iOS Device off.
    Find my device toggled off. Screenshot.
  6. Enter your Apple ID Password to disable the Find My iOS Device function.

The following steps will walk you through restoring your iOS device to factory defaults.

  1. Connect your device to the computer and open iTunes.
    iTunes icon.
  2. Click on Restore [your device].
    Restore screen with Restore button selected. Screenshot.
  3. Click on Restore.
    Restore confirmation box with Restore option selected. Screenshot.
  4. You may be prompted to download the firmware for your devices. If this happens select Next to continue.
    Firmware summary screen with Next button selected. Screenshot.
  5. The download will now start. Leave your device plugged in and once the download finishes it will start the restore. You can view your progress of the download by clicking the downloads button that appears while downloading is in progress.
    Download progress. Screenshot.
  6. Once the restore is complete (which takes approximately 15 minutes), you will be asked if you want to restore from a backup. Use the following guidelines to decide which option is the best.
    Setup As New This is the suggested setup if you are resetting your device to troubleshoot issues. This will set up the device like you first purchased it and will not carry over any software issue you may have had before restoring.
    iCloud Restore iCloud restores are the suggested method if you are swapping to a new device. It is recommended to do this step when you will be on a Wi-Fi connection for good period of time as it may take awhile to finish.
    iTunes Restore iTunes restores are the suggested method if you normally since your device solely with iTunes.

Powering off an iPhone.

  1. Hold down the lock / power button.
  2. Slide to power off when prompted.
  3. Wait until the phone is off.
  4. Hold down the lock / power button until you see the Apple logo.

Use a cloth and clean the sensor.
Cleaning iPhone screen.

To access Touch ID & Passcode Settings, follow these steps:

  1. Open Settings from the Home Screen.
    Settings icon.
  2. Tap on Touch ID & Passcode.
    Settings with Touch ID and Passcode selected. Screenshot.
  3. Enter your passcode (if any).
    Passcode prompt. Screenshot.

To enable or disable the use of Touch ID follow these steps:

  1. Toggle the Settings On/Off depending on what you would like to use.Touch ID and Passcode settings with toggle for touch ID. Screenshot.

To Delete a fingerprint follow these steps:

  1. Tap on the fingerprint you wish to remove.
    Touch ID and Passcode settings with example fingerprint selected. Screenshot.
  2. Tap on Delete Fingerprint.
    Fingerprint settings with Delete Fingerprint selected. Screenshot.

To add a fingerprint:

  1. Tap on Add a Fingerprint.
    Touch ID and Passcode settings with Add a Fingerprint selected.
  2. Follow the on-screen instructions to add a new fingerprint.
    Place your Finger prompt. Screenshot.

Restoring your device will erase all data from your iOS device. Prior to performing a restore, you may want to perform an iCloud backup or a manual backup in iTunes.

Before restoring the device, we must disable the Find My Device from your iOS device.

  1. Open Settings from the Home Screen.
    Settings icon.
  2. Tap on Accounts & Passwords.
    Settings menu with Accounts and Passwords selected. Screenshot.
  3. Tap on your iCloud account.
    Accounts and Passwords with iCloud account selected. Screenshot.
  4. Tap on Find My iOS Device.
    iCloud accounts settings with Find My device selecteed. Screenshot.
  5. Toggle Find My iOS Device off.
    Find my device toggled off. Screenshot.
  6. Enter your Apple ID Password to disable the Find My iOS Device function.

The following steps will walk you through restoring your iOS device to factory defaults.

  1. Connect your device to the computer and open iTunes.
    iTunes icon.
  2. Click on Restore [your device].
    Restore screen with Restore button selected. Screenshot.
  3. Click on Restore.
    Restore confirmation box with Restore option selected. Screenshot.
  4. You may be prompted to download the firmware for your devices. If this happens select Next to continue.
    Firmware summary screen with Next button selected. Screenshot.
  5. The download will now start. Leave your device plugged in and once the download finishes it will start the restore. You can view your progress of the download by clicking the downloads button that appears while downloading is in progress.
    Download progress. Screenshot.
  6. Once the restore is complete (which takes approximately 15 minutes), you will be asked if you want to restore from a backup. Use the following guidelines to decide which option is the best.
    Setup As New This is the suggested setup if you are resetting your device to troubleshoot issues. This will set up the device like you first purchased it and will not carry over any software issue you may have had before restoring.
    iCloud Restore iCloud restores are the suggested method if you are swapping to a new device. It is recommended to do this step when you will be on a Wi-Fi connection for good period of time as it may take awhile to finish.
    iTunes Restore iTunes restores are the suggested method if you normally since your device solely with iTunes.
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If your all the way down you will not be able to hear any audio. We will check to make sure your volume isn't muted.
  • Set the audio level by pressing the volume keys.
    Volume buttons on side of iPod

  • You can also use the Control Center by swiping up from the home screen. Use the volume slider to set the audio level. Sliding to the far right sets the volume to maximum.
    Control center with volume sliders highlighted

We need to check to make sure you're not connected to another Bluetooth device.

  1. Open the Settings app on the Home screen.
    Settings.
  2. Tap on Bluetooth.
    iOS Settings menu highlighting Bluetooth.
  3. Look for any device that says Connected.
    iOS Bluetooth menu highlighting a connected Bluetooth device.
  4. Tap on the (i).
    iOS Bluetooth menu highlighting the informational I icon.
  5. Tap on Disconnect.
    iOS Bluetooth device menu highlighting the disconnect option.
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