[Sony Xperia XZ Premium Questions & Answers] AREK28:
I have the same problem on my XZ1 compact when paired to my Plantronics BT headset, it kept disconnecting and reconnecting the next second. Sometimes the BT would show that is is connected but when i make a call, it isn't connected to the BT headset. I emailed support and follow their instructions below and still have the same problem, anybody experiencing the same? Hope there is a solution to fix this problem soon.

Thank you for contacting the Sony Xperia support centre.

With regards to your query, kindly be advised to switch your phone to the safe mode, under the safe mode, please reset your Plantronics BT earphone and pair with the phone again.

If the device performance improves in safe mode, it’s likely that one or more downloaded applications are affecting the device negatively. You can exit safe mode and restart the device to uninstall the application or applications you suspect are causing the problem. If the problem is recent and you’re not sure which application is causing the problem, you can start by uninstalling the most recently downloaded application.

To enable Safe mode

1.	While the phone is on, press and hold down the power key.

2.	In the pop up window, touch and hold Power off until the Reboot to safe mode message appears.

3.	Tap OK to reboot in safe mode.

To exit Safe mode

•	When in Safe mode, restart the phone.

If the issue still persist under the safe mode, kindly be advised to perform a software repair by using the Xperia Companion.

To do this, you will need to install Xperia Companion from the Sony Xperia website. Please perform a backup first if your phone is able to on. Please follow the steps below to do this:

1. Go to http://www.sonymobile.com/global-en/

2. Select Support

3.Click on Xperia companion

4.Look for " connect to your computer

5.Click on" Download for windows "

System requirements:

• Broadband connection

• Intel Pentium 4 or equivalent AMD processor

• 5 GB free hard disk space

• 2 GB RAM

• 1 available USB 2.0 or USB 3.0 port and USB cable

• Microsoft Windows 7, Windows 8(8.1 or Windows 10

• OSX 10.8 (Mountain Lion) or above

Note! There will be no support for Windows XP or Vista

To do a Backup, click on the "Backup" icon and follow the steps accordingly.

1) Click Backup to start

2) Xperia Companion will prompt you to name a new backup set. If an existing backup is available the data will added to the existing backup set. Click OK, to save the file name

3) Xperia Companion is able to backup personal data and media. Click the arrow to expand the My Data selection. Click Next to start the backup.

My data – Contacts & Call log, Calendar, Text messages and Others

Camera – Photos and Videos

Music – Music

4) Xperia Companion will request a password to be set for the backup files. This is optional unless the device is encrypted. If encrypted this will be mandatory. Click Next to progress.

5) Once the application has complied a backup the progress will automatically move onto the next window. Xperia Companion will notify that the backup has been successful. Click to Done to complete the process.

To do a Software Repair, just click on the "Software Repair" icon and follow the steps accordingly.

1) Click Software Repair to start

2) Xperia Companion will advise of Google Theft Protection risks. You must acknowledge that you know your details before process to the next step. Tick Yes to progress and then click Next.

3) You will be warned that all your local stored data will be removed. Tick I understand follow by clicking Next to progress.

4) Xperia Companion will download the Update Engine application. This application will run in background and you will not see the service. The service will progress automatically. The progress will vary depending on internet speeds. Once the Update Engine has been installed, you will be requested to connect your device. You must follow the steps for Xperia Companion to detect the device.

5) When the device has been detected the application will automatically move to the next step. Click Next to progress. When the repair has been completed, Xperia Companion will progress and confirm a successful repair. Click Done to complete the process.

Thank you for contacting the Sony Xperia support centre.

With regards to your query, we suggest you to forget the Bluetooth pairing and clear data of the Bluetooth app by going Settings > Apps & notification > Apps info > tap on 3 vertical dots on top right hand corner > Show system > Bluetooth > Force stop > OK > Storage > Clear cache and clear data and try again.

If problem persists, we suggest you to try reset network settings and try again and monitor it.

To clear all connection data

1. Find and tap Settings > Network & Internet.

2. Tap the menu button (three vertical dots) > Network settings reset > RESET SETTINGS.