![usb bt400 not finding devices usb bt400 not finding devices](https://static1.makeuseofimages.com/wordpress/wp-content/uploads/2018/08/bluetooth-adapters.jpg)
Install "microsoft universal c runtime".While doing all this don't forget to increase the sleep time, so that if the device prompts for authentication on the mobile device you know that the connection is succeeded.
Usb bt400 not finding devices drivers#
Some cheap devices (some $30 tablets) don't provide the USB drivers to connect in Device Manager, so in this case you are out of luck. If this doesn't work, try restarting Android Studio or plugging your device back in again. In Device Manager, find your device (should have yellow Exclamation point), right click, and update driver (open the folder with the driver you just downloaded) If you don't have this, you have to download the Google USB Driver. In Windows, right click on Computer, and go to Device Manager, check if you have Android Device right on the root folder and under it should be Android Composite ADB Interface. Make sure you have the driver for your device properly installed (most of the time, this happens when you first plug in your USB cable). Make sure you can see your files in your device in Windows Explorer when you connect via USB. Make sure you have Select USB Configuration set to MTP (this is also in Developer Options). Make sure USB debugging on your phone is enabled (go to Developer Options in Settings and turn it on)
![usb bt400 not finding devices usb bt400 not finding devices](https://img.youtube.com/vi/RuxXUKN1vz8/0.jpg)
Make sure your phone has Developer Options in Settings (if not, go to Settings, About phone (or device), click on Android Version multiple times until you see a message). If your device it listed it should show something like this: C:\android\sdk\platform-tools>adb devices Go to your sdk tool installation path, and under \sdk\platform-tools folder and run this command:
![usb bt400 not finding devices usb bt400 not finding devices](https://forums.macrumors.com/proxy.php?image=https:%2F%2Fcdn.cultofmac.com%2Fwp-content%2Fuploads%2F2019%2F03%2FA6D24424-A211-408A-9FDC-3E7863BAEB26.jpeg)
Try the following solutions (for Windows): Restart Android Studio and Developer Options in your android device and reconnect USB. Follow the file location path previously to install Google USB Driver. Open up your device manager, navigate to your android device, right click on it and select Update Driver Software then select Browse driver software. Hints: Search "android_winusb.inf" under Windows Start and Open File Location to get the directory mentioned. When done, the driver files are downloaded into the \extras\google\usb_driver\ directory. for update part follow the link: universal adbīut before that, you have to update your sdk manager and make sure Google USB Driver package is installed. Select that device and try to update the drivers for it. Many androids will show as an unknown USB device and comes with exclamation mark. Go to device manager (just search it using Start)Īnd look for any devices showing an error. If you using Windows, the device won't show up because of driver issue. It works for me by following steps below:.