How to Fix iPhone 6s Plus Bluetooth Not Working or Won’t Connect

Pairing your iPhone 6s Plus with Bluetooth devices like speakers, headsets, keyboards, and car stereos should be quick and easy. But if your iPhone refuses to connect, you’re not alone. Many users run into Bluetooth pairing problems, and luckily, most are fixable without needing a trip to the Apple Store.

Here’s everything you can do to troubleshoot and fix Bluetooth issues on your iPhone 6s Plus.

What Causes Bluetooth Problems on the iPhone 6s Plus?

Before we jump into solutions, it helps to know what might be going wrong:

Bluetooth is turned off or not in pairing mode.
Device is out of range (Bluetooth usually works within 30 feet).
Incompatibility between your iPhone and the Bluetooth device.
Software glitches or outdated iOS.
Hardware damage (especially after drops or liquid exposure) that affects the Bluetooth antenna.

If you suspect hardware damage, your best bet will be a repair — but if not, let’s troubleshoot.

Things to Check Before Troubleshooting

Make sure Bluetooth is ON:
- Open Control Center (swipe up) and tap the Bluetooth icon.
- It should be highlighted in blue.
Confirm proximity:
- Keep the Bluetooth device within 30 feet of your iPhone.
Update your iPhone:
- Go to Settings → General → Software Update and install any available updates.

How to Fix iPhone 6s Plus Bluetooth Problems

1. Reboot Your iPhone 6s Plus

A simple restart can clear up minor glitches.

Hold the Power button until you see Slide to Power Off.
Drag the slider to shut down.
After 30 seconds, hold the Power button again to turn it back on.

Then toggle Bluetooth off and on from Settings → Bluetooth or via Control Center.

2. Restart the Bluetooth Device

Bluetooth accessories can also get stuck.

Turn your Bluetooth device OFF for about 30 seconds, then turn it back ON.
Try pairing it again with your iPhone.

3. Forget and Reconnect the Bluetooth Device

If you previously connected to the device but it won’t reconnect now, it’s time to “forget” it and start fresh.

Go to Settings → Bluetooth.
Tap the (i) icon next to the device.
Tap Forget This Device, then confirm.

Afterward, put your Bluetooth device back into pairing mode and reconnect it.

4. Reset Network Settings

If your Bluetooth, Wi-Fi, or cellular network settings are messed up, resetting them can fix stubborn issues.

Go to Settings → General → Transfer or Reset iPhone → Reset.
Tap Reset Network Settings.
Enter your passcode if asked, then confirm.

Note: This will erase all Wi-Fi passwords and known Bluetooth connections, so you’ll need to set them up again.

5. Perform a DFU Restore (Last Resort)

If none of the basic fixes worked and you suspect a major software problem, a DFU (Device Firmware Update) restore might help.

⚠️ Warning: DFU restore is risky and can brick your iPhone if interrupted. Only attempt it if you’re confident or have nothing to lose.

Connect your iPhone to a computer with the latest version of iTunes.
Press and hold both the Power and Home buttons for 8 seconds.
Release the Power button but keep holding the Home button until iTunes detects the device in recovery mode.
Follow the prompts to Restore iPhone.

If you can’t enter DFU mode properly, try again — timing is important.

Still Not Working? Time to Get Help

If you’ve tried everything and Bluetooth still isn’t working:

Contact Apple Support.
Visit an Apple Store or authorized service provider for hardware diagnostics.
Double-check that your Bluetooth device is iOS-compatible — some older accessories simply won’t pair properly.