Reply by mahmudmaku

broadcom and other  bluetooth softwares and also driver detection process not work in xps and xps studio and some inspiron  laptops for who upgrades their notebooks to new windows  8.1 os.
i changed some line as below (bold italic lines) in R226750 in win7 folder both (32bit and 64bit) setup configuration file and setup proccess became ok and my bluetooth driver after 3 month straggle installed:
[Info]
Name=INTL
Version=1.00.000
DiskSpace=8000    ;DiskSpace requirement in KB

[Startup]
CmdLine=
SuppressWrongOS=Y
ScriptDriven=0
ScriptVer=1.0.0.1
DotNetOptionalInstallIfSilent=N
OnUpgrade=1
RequireExactLangMatch=0404,0804
Product=Bluetooth Software
PackageName=BTW.msi
EnableLangDlg=N
LogResults=N
DoMaintenance=N
ProductCode={9E9D49A4-1DF4-4138-B7DB-5D87A893088E}
ProductVersion=6.2.0.9600
SuppressReboot=Y
PackageCode={3CA52270-F8C2-4FD8-A6B8-D043CE83DD4E}

[MsiVersion]
2.0.2600.0=SupportOS

[SupportOSMsi11] ;Supported platforms for MSI 1.1
Win95=1
Win98=1
WinNT4SP3=1
Win 8.1=1

[SupportOSMsi12] ;Supported platforms for MSI 1.2
Win95=1
Win98=1
WinME=1
WinNT4SP3=1
Win 8.1=1

[SupportOS] ;Supported platforms for MSI 2.0
Win95=1
Win98=1
WinME=1
WinNT4SP6=1
Win2K=1

[SupportOSMsi30] ;Supported platforms for MSI 3.0
Win2KSP3=1
WinXP=1
Win2003Server=1
Win 8.1=1


[WinNT4SP3]
MajorVer=4
MinorVer=0
MinorVerMax=1
BuildNo=1381
PlatformId=2
ServicePack=768

[WinNT4SP6]
MajorVer=4
MinorVer=0
MinorVerMax=1
BuildNo=1381
PlatformId=2
ServicePack=1536

[Win2K]
MajorVer=5
MinorVer=0
MinorVerMax=1
BuildNo=2195
PlatformId=2

[Win2KSP3]
MajorVer=5
MinorVer=0
MinorVerMax=1
BuildNo=2195
PlatformId=2
ServicePack=768

[WinXP]
MajorVer=5
MinorVer=1
MinorVerMax=2
BuildNo=2600
PlatformId=2

[Win8.1]
MajorVer=5
MinorVer=2
MinorVerMax=3
BuildNo=9600
PlatformId=2

[Languages]
count=24
default=409
key0=804
key1=404
key2=406
key3=413
key4=409
key5=40b
key6=40c
key7=407
key8=410
key9=411
key10=412
key11=414
key12=416
key13=419
key14=40a
key15=41d
key16=415
key17=41a
key18=405
key19=408
key20=40e
key21=816
key22=418
key23=41f
[BTW.msi]
Type=0
Location=BTW.msi
[Setup.bmp]
Type=0
[instmsiw.exe]
Type=0
Location=instmsiw.exe
[instmsia.exe]
Type=0
Location=instmsia.exe

i hope your notebook problem will solve after do this

As its a Broadcom adapter, it should also be supported with the Broadcom Bluetooth Update:

https://www.broadcom.com/support/bluetooth/update.php

It has to show up and be turned on for the update to work. Any ideas?

It has to show up and be turned on for the update to work. Any ideas?

Power down the system and press F2 at the Dell BIOS screen when powering up to enter the BIOS setup. Disable Bluetooth in the BIOS setup and then load Windows 8.1, give Windows 8.1 some time to load and then power down. Then re-enable it in the BIOS setup and let Windows 8.1 load. Hopefully it should then display as new hardware. Sometimes issues like this happen when "upgrading" an OS which is why I always recommend "clean installation".

Note not all variants of the model will have a Bluetooth module. It was usually an optional upgrade.

Worked perfectly, thanks for the tip!