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WL1831MOD: Wl1831 Bluetooth pairing problem

Part Number: WL1831MOD
Other Parts Discussed in Thread: WL1831

The Bluetooth driver of wl1831 is loaded successfully after transplanting BlueZ on our Linux platform. Using Bluetooth CTL tool can make wl1831 search for Bluetooth of other mobile phones, and can also actively pair successfully. Now I want to search for wl1831 with my mobile phone. The mobile phone has actively paired, but it has not been successfully paired. Is there any corresponding information and document for this way of use?