"Try again" error occurs and Bluetooth device cannot connect to computer in Windows 8.1 or Windows RT 8.1

This article describes an issue that occurs when a Bluetooth device connects to a computer in Windows 8.1 or Windows RT 8.1. An update is available to resolve this issue. Before you install this update, check out the Prerequisites section.
Symptoms
When you try to connect a discoverable Bluetooth low energy (Bluetooth LE) device, you receive the following error message:

Try again and make sure that the device is discoverable

How to obtain this update
Important If you install a language pack after you install this update, you must reinstall this update. Therefore, we recommend that you install any language packs that you need before you install this update. For more information, see Add language packs to Windows.

Method 1: Windows Update

This update is provided as an Optional update on Windows Update. For more information on how to run Windows Update, see How to get an update through Windows Update.

Method 2: Microsoft Download Center

The following files are available for download from the Microsoft Download Center:
Operating systemUpdate
All supported x86-based versions of Windows 8.1DownloadDownload the package now.
All supported x64-based versions of Windows 8.1 DownloadDownload the package now.
Note The update for Windows RT 8.1 can be obtained only from Windows Update.

For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base:
119591 How to obtain Microsoft support files from online services
Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to the file.

Update detail information

Prerequisites

To install this update, you must have April 2014, update rollup for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 (2919355) installed in Windows 8.1.

Registry information

To apply this update, you do not have to make any changes to the registry.

Restart requirement

You may have to restart the computer after you apply this update.

Update replacement information

This update does not replace a previously released update.

File information

The global version of this update installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and the times may change when you perform certain operations on the files.

Windows 8.1 file information and notes


  • The files that apply to a specific product, milestone (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table:
    VersionProductMilestoneService branch
    6.3.960 0.16 xxxWindows RT 8.1  RTMGDR
    6.3.960 0.17 xxxWindows RT 8.1 and Windows 8.1 RTMGDR
  • GDR service branches contain only those fixes that are widely released to address widespread, critical issues. LDR service branches contain hotfixes in addition to widely released fixes.
  • The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information" section. MUM, MANIFEST, and the associated security catalog (.cat) files, are very important to maintain the state of the updated components. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital signature.
For all supported x86-based versions of Windows 8.1
File nameFile versionFile sizeDateTimePlatform
Bthenum.sys6.3.9600.1790139,42409-Jun-201522:02x86
Bthmini.sys6.3.9600.1790123,55209-Jun-201522:03x86
Bthport.sys6.3.9600.179011,014,78409-Jun-201522:02x86
Bthusb.sys6.3.9600.1790160,92809-Jun-201522:02x86
Fsquirt.exe6.3.9600.17415229,37629-Oct-201401:28x86
For all supported x64-based versions of Windows 8.1
File nameFile versionFile sizeDateTimePlatform
Bthenum.sys6.3.9600.1790153,24809-Jun-201522:39x64
Bthmini.sys6.3.9600.1790131,74409-Jun-201522:39x64
Bthport.sys6.3.9600.179011,201,66409-Jun-201522:38x64
Bthusb.sys6.3.9600.1790181,92009-Jun-201522:39x64
Fsquirt.exe6.3.9600.17415241,15229-Oct-201402:03x64
For all supported Windows RT 8.1
File nameFile versionFile sizeDateTimePlatform
Bthenum.sys6.3.9600.1790139,93609-Jun-201521:11Not applicable
Bthmini.sys6.3.9600.1790125,60009-Jun-201521:12Not applicable
Bthport.sys6.3.9600.17901949,24809-Jun-201521:11Not applicable
Bthusb.sys6.3.9600.1790159,90409-Jun-201521:11Not applicable
Fsquirt.exe6.3.9600.16384226,81622-Aug-201302:39Not applicable

Additional file information


Additional file information for Windows 8.1

Additional files for all supported x86-based versions of Windows 8.1
File propertyValue
File nameX86_bth.inf_31bf3856ad364e35_6.3.9600.17901_none_0737fbe0d6eca9d1.manifest
File versionNot applicable
File size4,629
Date (UTC)10-Jun-2015
Time (UTC)20:30
PlatformNot applicable

Additional files for all supported x64-based versions of Windows 8.1
File propertyValue
File nameAmd64_bth.inf_31bf3856ad364e35_6.3.9600.17901_none_635697648f4a1b07.manifest
File versionNot applicable
File size4,633
Date (UTC)10-Jun-2015
Time (UTC)20:33
PlatformNot applicable

Additional files for all supported Windows RT 8.1
File propertyValue
File nameArm_bth.inf_31bf3856ad364e35_6.3.9600.17901_none_073a6e38d6e9c897.manifest
File versionNot applicable
File size4,629
Date (UTC)10-Jun-2015
Time (UTC)20:26
PlatformNot applicable


Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
References
See the terminology that Microsoft uses to describe software updates.
Properties

Article ID: 3072019 - Last Review: 07/21/2015 16:31:00 - Revision: 1.0

Windows 8.1 Enterprise, Windows 8.1 Pro, Windows 8.1, Windows RT 8.1

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