Bluetooth device not recognized in Device Manager after Full System Recovery
Bluetooth Remote Control and Bluetooth Hands-free Audio may display a yellow exclamation mark in Device Manager after Full System Recovery has been performed.
This indicates that your unit previously has been in repair for a Wi-Fi issue, but the updated drivers have not been reinstalled after System Recovery.
Please refer to the following article to resolve the issue: How to install Intel Wi-Fi and Bluetooth drivers on SVF1421 / SVF1521 series
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