It worked with the loopback plug - so will look to attach the new bluetooth module to that. thanks for your help!
Graculus
Well-Known Member
Bear in mind that a loopback plug doesn't care about 'polarity', you still need to make sure that the lit fibre goes to the unlit port on the module and vice-versa. From your earlier photo, it looks like someone has been swapping fibres around in the housings as there are short & long fibres in the two free plugs.
I still expected it to fault as I assumed someone had looped it somewhere else to bypass the bluetooth module. This scenario with an open plug causes a break in the loop so should in itself bring the loop down.
I had posted a reply to the above but it doesn't seem to've appeared.
i used the loopback plug and everything worked, so it seems the bluetooth module is the culprit. so i will try and plug in the new one.
final question on this - the method i have seen online for plugging in the new module involves only connecting the power & ground cables of the new unit to the old unit, and then plugging the MOST cable into the new unit, so effectively continuing to use all the other wires in the blue plug of the old unit (see pic). is there any reason why i can't just plug the whole blue plug into the new unit??
thanks for your help.
Adrian
i used the loopback plug and everything worked, so it seems the bluetooth module is the culprit. so i will try and plug in the new one.
final question on this - the method i have seen online for plugging in the new module involves only connecting the power & ground cables of the new unit to the old unit, and then plugging the MOST cable into the new unit, so effectively continuing to use all the other wires in the blue plug of the old unit (see pic). is there any reason why i can't just plug the whole blue plug into the new unit??
thanks for your help.
Adrian
Attachments
From what I read during my research into fitting a new module it did show just the power. I think most of the other wires will go to the handset cradle in centre cubby box at the front. I suspect the pinouts will be different so if the plug does fit you may be applying power to the wrong pin which may result in the need for a fire extinguisher 
That's what I thought but the OP's comment made me think maybe not in this case.
I changed the Nokia Bluetooth unit in my 08 plate l322 a little while ago, I had some of the pins left over from upgrading the phone on the 53 plate I had so piggy back power and ground off the original connector to feed the one off a disco 4 I fitted and just taped up the connector to be safe.
