iPhone Troubleshooting Battery, Charging, and Power Issues

If the issue wasn’t resolved by following a support article or trying the quick troubleshooting steps, run these diagnostic and manual tests to help isolate the cause of the issue:

1. Follow all steps in If your iPhone won't turn on or the screen is black to attempt to place the device in recovery mode. If an image appears in recovery mode, connect the device using a functioning cable to a computer running the latest version of macOS. If the device is recognized by the computer, then the device has power. Restore the device if prompted.

2. Follow repair manual procedures to open the device and disconnect the battery. Use a compatible charge cable to connect the iPhone to a power adapter that’s plugged into an electrical outlet. Don’t use a computer port or wireless charging. Attempt to turn on the iPhone with the battery disconnected. If the Apple logo appears on the iPhone screen with the battery disconnected, then battery replacement is recommended. If the iPhone remains off and unresponsive, then the issue is likely unrelated to the battery.

If the issue wasn’t resolved or isolated by following support articles or running diagnostics tests, refer to the iPhone repair manual to open and inspect the iPhone. A damaged or out-of-place part may be causing one of the issue.

1. Follow repair manual procedures to open the device.

2. Disconnect the flex cable connecting the battery to the logic board.

3. Examine the connector for signs of damage or debris.

4. If the connector appears normal and not damaged, reconnect the flex cable. Gently reseat the connector by lightly pressing on it with two fingers.

5. Reassemble by installing any removed parts and closing the device.

6. Retest the device for power and battery using wired charger, then wireless charger to isolate charging from power on issue.

Note: This section requires ordering parts and tools. Replacing a part may not resolve the device’s issue. You can find other service options at support.apple.com/repair.

If the issue wasn’t resolved or isolated by following the previous steps, replace the logic board in all iPhone 17 models and iPhone Air.

After the repair is completed, turn on the device and verify that the device turns on and completes startup. Also test wired and wireless charging functionality.

Note: This section requires ordering parts and tools. Replacing a part may not resolve the device’s issue. For other models, you can find other service options at support.apple.com/repair.

• About genuine iPhone batteries

• About iPhone charge speeds

• Charge and maintain your iPhone battery

• Charge and connect with the USB-C connector on your iPhone

• How to use your MagSafe Charger with iPhone

• How to wirelessly charge your iPhone

• If a Charging On Hold notification appears on your iPhone or iPad

• Identify counterfeit or uncertified Lightning connector accessories

• If your iPhone or iPad is running slow

• If the battery in your iPhone drains too quickly

• If your iPhone or iPod touch won’t charge

• Restart your iPhone

• Unauthorized modification of iOS

• Using Apple power adapters, cables, and duckheads with Apple products

If the issue wasn’t resolved by following a support article or trying the quick troubleshooting steps, run these diagnostic and manual tests to help isolate the cause of the issue:

1. Run the Mobile Resource Inspector (MRI) diagnostic suite.

2. Important: Devices with a nongenuine or unknown battery may exhibit the following symptoms:

   • False failures with MagSafe or wireless charging

   • MagSafe isn't detected

   • Unexpected shutdowns

   • Charging issues where the device doesn't charge above 1 percent

3. If any or all of the symptoms above are present, check MRI results. If MRI results show an unknown battery flag with MagSafe failures such as MagSafe not being detected, or charging issues where the device doesn't charge above 1 percent, battery replacement is recommended. If replacing the battery doesn't resolve these issues, continue troubleshooting. If the issue is unrelated to these symptoms, continue troubleshooting

Note: Battery and charge indicators may fluctuate briefly when you connect the iPhone to power or wake it from sleep. If this happens, wait a few seconds. Then check it again. The battery percentage may remain at 99 percent with a full charge, which doesn’t indicate a battery or hardware issue. Refer to iPhone battery and performance for more information.

If the issue wasn’t resolved or isolated by following support articles or running diagnostics tests, refer to the iPhone repair manual to open and inspect the iPhone. A damaged or out-of-place part may be causing one of the issue.

1. Follow repair manual procedures to open the device.

2. Disconnect the flex cable connecting the battery to the logic board.

3. Examine the connector for signs of damage or debris.

4. If the connector appears normal and not damaged, reconnect the flex cable. Gently reseat the connector by lightly pressing on it with two fingers.

5. Reassemble by installing any removed parts and closing the device.

6. Retest the device for power and battery.

Note: This section requires ordering parts and tools. Replacing a part may not resolve the device’s issue. You can find other service options at support.apple.com/repair.

If the issue wasn’t resolved or isolated by following the previous steps, replace the battery.

After the repair is completed, turn on the device and verify wired and wireless charging functionality.

Note: This section requires ordering parts and tools. Replacing a part may not resolve the device’s issue. For other models, you can find other service options at support.apple.com/repair.

• About genuine iPhone batteries

• About iPhone charge speeds

• Charge and maintain your iPhone battery

• Charge and connect with the USB-C connector on your iPhone

• How to use your MagSafe Charger with iPhone

• How to wirelessly charge your iPhone

• If a Charging On Hold notification appears on your iPhone or iPad

• Identify counterfeit or uncertified Lightning connector accessories

• If your iPhone or iPad is running slow

• If the battery in your iPhone drains too quickly

• If your iPhone or iPod touch won’t charge

• If your iPhone won’t turn on or the screen is black

• Restart your iPhone

• Unauthorized modification of iOS

• Using Apple power adapters, cables, and duckheads with Apple products

If the issue wasn’t resolved by following a support article or trying the quick troubleshooting steps, run these diagnostic and manual tests to help isolate the cause of the issue:

1. Run the Mobile Resource Inspector (MRI) diagnostic suite.

Note: Battery and charge indicators may fluctuate briefly when you connect the iPhone to power or wake it from sleep. If this happens, wait a few seconds. Then check it again. The battery percentage may remain at 99 percent with a full charge, which doesn’t indicate a battery or hardware issue. Refer to iPhone battery and performance for more information.

If the issue wasn’t resolved or isolated by following support articles or running diagnostics tests, refer to the iPhone repair manual to open and inspect the iPhone. A damaged or out-of-place part may be causing one of the issue.

1. Follow repair manual procedures to open the device.

2. Disconnect the flex cable connecting the battery to the logic board.

3. Disconnect the dock flex cable connecting the charging connector to the logic board.

4. Examine these connectors for signs of damage or debris.

5. If these connectors appear normal and not damaged, reconnect them. Gently reseat each connector by lightly pressing on it with two fingers.

6. Reassemble by installing any removed parts and closing the device.

7. Retest the device for wired charging.

Note: This section requires ordering parts and tools. Replacing a part may not resolve the device’s issue. You can find other service options at support.apple.com/repair.

If the issue wasn’t resolved or isolated by following the previous steps, replace the following parts in the listed iPhone models one at a time in the order shown. After you replace the first part, repeat the troubleshooting steps to determine whether replacing a part resolves the issue. If it still isn’t resolved, replace the next part.

• If there is damage, replace the USB-C connector for wired charging issues in iPhone 15, iPhone 15 Plus, iPhone 16, iPhone 16 Plus, iPhone 16 Pro, iPhone 16 Pro Max, iPhone 16e, and iPhone 17e models.

• iPhone 17e

• Replace the logic board in all iPhone 17 models and iPhone Air.

• Replace the enclosure if the symptoms don't resolve after replacing the previous parts in all iPhone 17 models and iPhone Air.

After the repair is completed, turn on the device and verify wired charging functionality.

Note: This section requires ordering parts and tools. Replacing a part may not resolve the device’s issue. For other models, you can find other service options at support.apple.com/repair.

• About genuine iPhone batteries

• About iPhone charge speeds

• Charge and maintain your iPhone battery

• Charge and connect with the USB-C connector on your iPhone

• How to use your MagSafe Charger with iPhone

• How to wirelessly charge your iPhone

• If a Charging On Hold notification appears on your iPhone or iPad

• Identify counterfeit or uncertified Lightning connector accessories

• If your iPhone or iPad is running slow

• If the battery in your iPhone drains too quickly

• If your iPhone or iPod touch won’t charge

• If your iPhone won’t turn on or the screen is black

• Restart your iPhone

• Unauthorized modification of iOS

• Using Apple power adapters, cables, and duckheads with Apple products

If the issue wasn’t resolved by following a support article or trying the quick troubleshooting steps, run these diagnostic and manual tests to help isolate the cause of the issue:

1. Run the Mobile Resource Inspector (MRI) diagnostic suite.

2. Important: Devices with a nongenuine or unknown battery may exhibit the following symptoms:

   • False failures with MagSafe or wireless charging

   • MagSafe isn't detected

   • Unexpected shutdowns

   • Charging issues where the device doesn't charge above 1 percent

3. If any or all of the symptoms above are present, check MRI results. If MRI results show an unknown battery flag with MagSafe failures such as MagSafe not being detected, or charging issues where the device doesn't charge above 1 percent, battery replacement is recommended. If replacing the battery doesn't resolve these issues, continue troubleshooting. If the issue is unrelated to these symptoms, continue troubleshooting

4. Use a MagSafe Charger or a Qi-certified wireless charging accessory that’s plugged into an electrical outlet.

5. Disconnect the wired charge cable before you test wireless charging. When both are used simultaneously, charging defaults to the wired connection. Place the iPhone directly on top of the charging pad. Ensure that the iPhone display is faceup in the middle of the charger or in the location recommended by the wireless charging pad manufacturer.

6. Wait until an image appears on the screen or 10 minutes has elapsed. If the iPhone doesn’t turn on with wireless charging and turns on only with wired charging, then the iPhone may have wireless charging issues.

Note: Battery and charge indicators may fluctuate briefly when you connect the iPhone to power or wake it from sleep. If this happens, wait a few seconds. Then check it again. The battery percentage may remain at 99 percent with a full charge, which doesn’t indicate a battery or hardware issue. Refer to iPhone battery and performance for more information.

If the issue wasn’t resolved or isolated by following support articles or running diagnostics tests, refer to the iPhone repair manual to open and inspect the iPhone. A damaged or out-of-place part may be causing one of the issue.

Note: This section requires ordering parts and tools. Replacing a part may not resolve the device’s issue. You can find other service options at support.apple.com/repair.

If the issue wasn’t resolved or isolated by following the previous steps, replace the following parts in the listed iPhone models one at a time in the order shown. After you replace the first part, repeat the troubleshooting steps to determine whether replacing a part resolves the issue. If it still isn’t resolved, replace the next part.

After the repair is completed, turn on the device and verify wireless charging functionality.

Note: This section requires ordering parts and tools. Replacing a part may not resolve the device’s issue. For other models, you can find other service options at support.apple.com/repair.

• If your iPhone won't turn on or the screen is black

• If your iOS or iPadOS device restarts or displays the Apple logo or a spinning gear unexpectedly

If the issue wasn’t resolved by following a support article or trying the quick troubleshooting steps, run these diagnostic and manual tests to help isolate the cause of the issue:

1. Run the Mobile Resource Inspector (MRI) diagnostic suite.

If the issue wasn’t resolved or isolated by following support articles or running diagnostics tests, refer to the iPhone repair manual to open and inspect the iPhone. A damaged or out-of-place part may be causing one of the issue.

Note: This section requires ordering parts and tools. Replacing a part may not resolve the device’s issue. You can find other service options at support.apple.com/repair.

Replace the logic board in all iPhone 17 models and iPhone Air.

Note: This section requires ordering parts and tools. Replacing a part may not resolve the device’s issue. For other models, you can find other service options at support.apple.com/repair.

After the repair is completed, turn on the device and verify overall functionality.