# Error: No compatible USB Bluetooth 4.0 device found!

**URL:** <https://discourse.nodered.org/t/error-no-compatible-usb-bluetooth-4-0-device-found/30727>\
**Category:** General\
**Created:** [26 July 2020 12:47 UTC](https://discourse.nodered.org/t/error-no-compatible-usb-bluetooth-4-0-device-found/30727 "2020-07-26T12:47:38Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![christian\_ep](https://avatars.discourse-cdn.com/v4/letter/c/e95f7d/32.png) [@christian\_ep](https://discourse.nodered.org/u/christian_ep)\
**Post date:** [26 July 2020 12:47 UTC](https://discourse.nodered.org/t/error-no-compatible-usb-bluetooth-4-0-device-found/30727/1 "2020-07-26T12:47:39Z")

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Hello together, I try to start node-red on my win 10 surface 6. All seems pretty installed but on starting node red i get this error and it doesn´t start. The surface supports LMP 8.37 ... means Bluetooth 4.2. But I get the error that there is no compatible Bluetooth 4.0 device.  
How can I solve this? I already tried to install a generic usb BLE with no success.

26 Jul 14:22:16 - Error: No compatible USB Bluetooth 4.0 device found!  
at BluetoothHciSocket.bindUser (C:\Users\studi.node-red\node\_modules@abandonware\bluetooth-hci-socket\lib\usb.js:88:11)  
at BluetoothHciSocket.bindRaw (C:\Users\studi.node-red\node\_modules@abandonware\bluetooth-hci-socket\lib\usb.js:44:8)  
at Hci.init (C:\Users\studi.node-red\node\_modules@abandonware\noble\lib\hci-socket\hci.js:100:35)  
at NobleBindings.init (C:\Users\studi.node-red\node\_modules@abandonware\noble\lib\hci-socket\bindings.js:78:13)  
at C:\Users\studi.node-red\node\_modules@abandonware\noble\lib\noble.js:60:24  
at processTicksAndRejections (internal/process/task\_queues.js:79:11)

C:\>Error: No compatible USB Bluetooth 4.0 device found!Error: No compatible USB Bluetooth 4.0 device found!

Thanks for hints! Chris

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [24 September 2020 12:47 UTC](https://discourse.nodered.org/t/error-no-compatible-usb-bluetooth-4-0-device-found/30727/2 "2020-09-24T12:47:47Z")

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Closed on 24 September 2020 12:47 UTC

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