Updating the BT100 firmware fixes issue when playing Bluetooth audio from some aptX enabled devices.
This affects some(but not all) BT100 units.
Please note: this upgrade can only be carried out on a Windows computer.
Go to the Control Panel → click on 'Programs and Features’ → double click on any installed instance of ‘BT100 Update’.
Go to the Control Panel → click on 'Add and Remove Programs’ → double click on any installed instance of ‘BT100 Update’.
The link "BT100 Update v.2.3.zip" can be found at the bottom of this page.
Make sure you unzip the installer to a known location on your hard drive.
Double click on the "setup.exe" file.
Follow the prompts and click finish once installation is complete.
Go to Start->Cambridge Audio->Drivers.
Depending on whether your version of Windows is 32 or 64 bit choose the respective version. The installation is silent and will not notify on completion.
Wait for the USB audio driver installation to complete.
This will place the dongle in upgrade mode.
Windows should now automatically use the driver you installed in step 4.
If you are unsure, the dongle should appear in ‘Device Manager’ as ‘CSR BlueCore in DFU Mode’.
Go to your PC Start → Cambridge Audio → BT100Update.
An on screen prompt will notify “UPGRADE SUCCESSFUL!” on completion.
The upgrade utility first checks if the upgrade is necessary. The utility will display "No Upgrade required" if your BT100 is already up to date.
After upgrade the BT100 will have forgotten its previous pairings and will need to be re-paired with your source devices.
We recommend you delete the original BT100 pairing from your