I have a Sony Experia Z3v phone. Bluetooth can be accessed through the quick settings menu or the settings menu. On the quick settings menu, my...

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Hi Bradley,

Try to reset the phone first by pressing the power button for few seconds then select restart. wait for the phone to restart and check the issue again.

Let me know the result. 

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Please send me a reply when you are ready by entering your message in the box at the top then hit the send response button to send.

Hold on let me check this issue for you.

Thank you for waiting.

Did you perform a software upgrade on the phone?

I see. seems like the software of the phone has been updated recently. 

You need to install the software that came with the phone and perform the steps below.

Note: a software repair will delete all user data, to back up your phone using PC Companion first:

1. Go to Support to install PC Companion on a Windows
computer.
2. When installed, start PC Companion on the computer.
3. Connect your phone to the computer using a USB cable.
4. Click Start under Backup & Restore.
5. Follow the on-screen instructions.
(Exactly what contents will be backed up may differ
depending on phone model.
You can view detailed information about this as you follow
the steps in the Backup & Restore wizard).

Running the software repair:
1. Install and open PC Companion then select Support Zone.
2. Phone Software Update.
3. Start.
4. Repair Phone
5. Continue
6. Accept data removal
7. Next
8. Wait for prepare
9. Select Phone
10. Follow the connection steps

The PC companion software is the installer disc that came with your phone. 

If you lost the disc then you may download the program br clicking the link below.

http://support.sonymobile.com/global-en/tools/xperia-companion/

Any update, Bradley?