During the bluetooth pairing process, information is exchanged back and forth between two devices in order to generate a link key. Let's say this process is interrupted before the link key is made.
Example 1: A bluetooth headset signal drops out in the middle of pairing to a new phone due to interferance or trying to connect at long range.
Example 2: A PS3 controller is unplugged while in the middle of syncing to the system for the first time.
I know that power loss can cause problems during flash memory write cycles, but in these two examples power is maintained to the bluetooth hardware and only the signal is interrupted. So if the bluetooth pairing process is interrupted before completion between two devices that have never been paired before, what happens? Would it just cause an incomplete/corrupt link key? Or could it possibly cause any harm to the chip or firmware?