My computer can't detect any of the blocks on the computer

Here is a list of questions that you can answer before proceeding: 1) Are your blocks connecting in the app at all? 2) Are the blocks turned on (do you see a red light?)? 3) Have you tried resetting the blocks (hold down the power button until white light flashes)? 4) Do you have a Bluetooth Dongle plugged in?

My modules are not pairing after I have turned them on and off. Is there anything else I can do?

Try resetting the wireless block. Hold down the power button above the SAM logo (the circular imprint on the elastomer band) until you see a white flash inside the module. It is important to know it will only flash when the red light turns off while holding it down for 10 seconds. You may be out of fuel! Try charging the wireless blocks. (See charging). You may need to plug in your Bluetooth 4.0 dongle provided in our 6 different kits. This is always necessary if you are using Windows, and only necessary on Mac if you do not have the latest version of Bluetooth. If you purchased single blocks, you can get a Bluetooth dongle on [Amazon.com](https://amzn.com/B009ZIILLI) and [Amazon.co.uk](http://www.amazon.co.uk/dp/B009ZIILLI). An indicator of a defective wireless block is that it will shine an orange light and not pair to your app. If your wireless block is physically damaged or does not work as expected, please take an image of the defect and send it to [info@samlabs.com](mailto:info@samlabs.com).

My personal Bluetooth dongle (non-SAM) does not work (Windows)! Help

Please would you try the following: 1\. Uninstall the SAM app from Control Panel > Programs > Programs and Features 2\. Uninstall the SAM Bluetooth dongle driver: 2a) Right click on Start menu 2b) Select Device Manager 2c) Right click on BCM20702A0 (under Universal Serial Bus device) 2d) Click on uninstall and tick the checkbox "Delete the driver software for this device" 3\. Reinstall SAM app and follow onscreen instructions.