FIX: Bluetooth pairing fails from a mobile device to a Windows Embedded Compact 2013 device

View products that this article applies to.

Introduction

This article describes an issue in which pairing succeeds only the first time that you connect from a mobile device to a Windows Embedded Compact 2013 device. An update is available to resolve this issue. Before you install this update, all previously issued updates for this product must be installed.

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Symptoms

Consider the following scenario:

You use Bluetooth in Windows Embedded Compact 2013 with a USB-based dongle that's provided by a vendor on the i.Mx6 platform.
You use the default HCI Transport layer that's provided on a Windows Embedded Compact 2013 device.
You use the default UI in Windows Embedded Compact 2013.
You have the Bluetooth Settings (bthsettings) User Interface module turned on for pairing to a mobile device.

When you connect from the mobile device to the Windows Embedded Compact 2013 device without opening the bthsettings UI, the pairing is successful one time. However, this triggers the bthsettings UI, and the next time that you connect from the mobile device to the Windows Embedded Compact 2013 device, the mobile device requests manual key insertion. As soon as you provide the key on the mobile device and pairing is initiated, a "pairing rejected" notification is displayed on the mobile device.

When you connect from the mobile device to the Windows Embedded Compact 2013 device while the bthsettings UI is open, the pairing is unsuccessful.

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Software update information

Download information

Windows Embedded Compact 2013 Monthly Update (April 2015) is now available from Microsoft. To download this Windows Embedded Compact 2013 monthly update, go to Microsoft OEM Online or MyOEM.

Prerequisites

This update is supported only if all previously issued updates for this product have also been installed.

Restart requirement

After you apply this update, you must perform a clean build of the whole platform. To do this, use one of the following methods:

On the Build menu, click Clean Solution, and then click Build Solution.
On the Build menu, click Rebuild Solution.

You do not have to restart the computer after you apply this software update.

Update replacement information

This update does not replace any other updates.

File information

The English version of this software update package has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.

Files that are included in this update package

File name	File size	Date	Time	Path
Btradio.cpp	45,096	27-Apr-2015	19:13	Public\Ossvcs\Oak\Samples\Bthsettings\App
Bthsettings.map	424,655	06-May-2015	02:25	Public\Ossvcs\Oak\Target\X86\Checked
Bthsettings.rel	526,108	06-May-2015	02:25	Public\Ossvcs\Oak\Target\X86\Checked
Bthsettings.exe	364,544	06-May-2015	02:25	Public\Ossvcs\Oak\Target\X86\Checked
Bthsettings.map	216,299	06-May-2015	02:24	Public\Ossvcs\Oak\Target\X86\Retail
Bthsettings.rel	200,554	06-May-2015	02:24	Public\Ossvcs\Oak\Target\X86\Retail
Bthsettings.exe	229,376	06-May-2015	02:24	Public\Ossvcs\Oak\Target\X86\Retail
Bthsettings.map	513,500	06-May-2015	02:23	Public\Ossvcs\Oak\Target\X86\Debug
Bthsettings.rel	616,849	06-May-2015	02:23	Public\Ossvcs\Oak\Target\X86\Debug
Bthsettings.exe	475,136	06-May-2015	02:23	Public\Ossvcs\Oak\Target\X86\Debug
Bthsettings.map	2,125,594	06-May-2015	02:26	Public\Ossvcs\Oak\Target\Armv7\Checked
Bthsettings.rel	540,086	06-May-2015	02:26	Public\Ossvcs\Oak\Target\Armv7\Checked
Bthsettings.exe	385,024	06-May-2015	02:26	Public\Ossvcs\Oak\Target\Armv7\Checked
Bthsettings.map	388,299	06-May-2015	02:25	Public\Ossvcs\Oak\Target\Armv7\Retail
Bthsettings.rel	192,898	06-May-2015	02:25	Public\Ossvcs\Oak\Target\Armv7\Retail
Bthsettings.exe	233,472	06-May-2015	02:25	Public\Ossvcs\Oak\Target\Armv7\Retail
Bthsettings.map	1,945,799	06-May-2015	02:24	Public\Ossvcs\Oak\Target\Armv7\Debug
Bthsettings.rel	523,092	06-May-2015	02:24	Public\Ossvcs\Oak\Target\Armv7\Debug
Bthsettings.exe	475,136	06-May-2015	02:24	Public\Ossvcs\Oak\Target\Armv7\Debug