Mi 12x can't connect Bluetooth headset?

for the following reasons

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1. The Bluetooth headset is not in pairing mode.

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2, did not enter the correct pairing code

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solution

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1, Bluetooth headset off state, long press the key or multi-function key do not let go, about 6 seconds red and blue lights alternately flashing pairing mode. The Bluetooth headset needs to be paired when the battery is running.

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2, some Bluetooth headset pairing code is required to enter the pairing code: 0000,1234.

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3, the effective distance between the Bluetooth headset and the mobile phone is within 10 meters, more than will be disconnected, can not be used.