fix link

Author: microbit-mark

bluetooth/profile.md

@@ -21,7 +21,7 @@ If you are looking for information about the 'radio' feature, it is a [proprieta
 
 A pre-compiled hex file is available to download for <span class="v2">V2</span> that enables all Bluetooth services. 
 
-[Bluetooth all services CODAL](/docs/bluetooth/assets/bluetooth/assets/BLE_All_Services_CODAL_0-0-24-ABDLIMTU-P.hex){: .btn.sm-btn download}
+[Bluetooth all services CODAL](/docs/bluetooth/assets/BLE_All_Services_CODAL_0-0-24-ABDLIMTU-P.hex){: .btn.sm-btn download}
 
 The source for this can be found in the [microbit-v2-samples]https://github.com/lancaster-university/microbit-v2-samples/tree/master/source/samples repository.