To enable a connection with more than one device of the Bluetooth variety, you have to type in a certain personal identification number on each gadget. However, this PIN does not always work in the correct manner so that you lose the ability to pair your devices. To retain your iPhone connection once more with another device, you need to reset your Bluetooth PIN.
From the main menu of your iPhone choose the "Bluetooth" option under "Settings." This allows you to locate the devices with which your iPhone has the ability to pair.
Delete the Bluetooth device that you want to pair from your iPhone. To do this, use the "Delete/reset PIN" option.
Pair your iPhone mobile device with the gadget to which you want to work. When you see the prompts that request that you enter a new PIN on both devices prior to the establishment of a new connection, type in the PIN that you desire.
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