iPhone Duo Troubleshooting Bluetooth or Wi-Fi Issues

Guided steps to help resolve issues

Identify issues

Read the relevant support articles if you notice any of the following issues:

• Can’t pair the iPhone with a Bluetooth accessory, such as Bluetooth headphones

• The iPhone intermittently loses connection with a paired Bluetooth accessory

• Can’t connect the iPhone to a Wi-Fi network

• Bluetooth or Wi-Fi is unavailable

• Bluetooth or Wi-Fi won’t turn on

Relevant support articles

• About Made for iPhone, iPad, and iPod touch accessories

• About Connectivity Assist

• Bluetooth profiles that iOS and iPadOS support

• Connect a third-party Bluetooth accessory to your iPhone or iPad

• Connect to Wi-Fi on your iPhone or iPad

• How to connect your iPhone, iPad, or iPod touch to your car

• Forget a Wi-Fi network or prevent your device from automatically joining it

• If an app would like to use Bluetooth on your device

• If a Bluetooth accessory won’t connect to your iPhone or iPad

• If you can’t connect to Wi-Fi on your iPhone or iPad

• Make a call with Wi-Fi Calling

• Recommended settings for Wi-Fi routers and access points

• Resolve Wi-Fi and Bluetooth issues caused by wireless interference

• Use Bluetooth and Wi-Fi in Control Center

• Use captive Wi-Fi networks on your iPhone or iPad

• Use private Wi-Fi addresses on Apple devices

• Use Wi-Fi 6E or Wi-Fi 7 networks with Apple devices

If the issue wasn’t resolved by following a support article, continue to the next section.

Try quick troubleshooting steps

1. For Bluetooth issues, review If a Bluetooth accessory won’t connect to your iPhone or iPad.

2. For Wi-Fi issues, review If you can’t connect to Wi-Fi on your iPhone or iPad.

3. If the time or date is incorrect on the iPhone, go to Settings > Date & Time and check that Set Time Automatically is on. Then verify that the date and time appear correctly on the iPhone.

Run manual and diagnostic tests

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

1. Run the Mobile Resource Inspector (MRI) diagnostic suite. Check diagnostic results for the presence of wireless hardware.

Open and inspect the iPhone

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 issues.

1. Inspect all relevant internal cables and connectors for disconnection, damage, or tampering, such as a film or foreign material blocking a connector.

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 part

If the issue wasn’t resolved or isolated by following the previous steps, replace the logic board or I/O board, depending on diagnostic results.

After the repair is completed, turn on the device and verify that Wi-Fi and Bluetooth are functional.

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.

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