A few devices require a firmware update before they can connect. Use a different device (iOS or Android) and the Grok Demo, Discover Grok, or Send Grok app to update the firmware - you will automatically be ask to update the firmware.
The Windows SDK has also been used successfully with a variety of Windows 7, Windows 8
and Windows 10 laptops.
The Windows SDK has also been used successfuly with Windows laptops with seperate microphone and speaker plugs, using a audio splitter cable.
Cases must be able to accept a standard audio jack (many rugggedized cases provide an audio extender cable due to narrow audio jack access).
The Grokker comes with a silicone retention strap able to hold many different devices for simple startup and ease of use. For alternative methods to attach your smart device to a Grokker, as well as audio extension cables and charging indicator cables, click here (pdf).