1, first of all, the mobile phone Bluetooth and car Bluetooth are turned on, and in a discoverable state
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2, in the mobile phone Bluetooth interface, click \"search device\
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3 Select the car Bluetooth displayed in the phone, click Car Bluetooth - Bluetooth Settings - pairing, at this time the phone will pop up asking for the pairing code dialog box, which is equivalent to the password set on the phone (the default is 1234 or 0000 or 1111, different manufacturers set different), and click \"Connect\
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4, if the pairing code input is correct, it will later show \"connected\" on the car Bluetooth, at this time you use the car Bluetooth to make a call to try, if successful, you can hear the call.