Claude is right, after re-arranging the screws so that the top two are the longest, bottom-right shortest and bottom left is the second-shortest the in-call audio came back with Bluetooth calls.
The same was found and posted by Pete on the Apple Support Communities forums and, as mentioned, I can also confirm that this fix works.
Hope this helps.
Unfortunately I forgot to check at dis-assembly which screw goes back where at step 11 so I ended up following the instructions although, I would find it logical that the longer screws are for the top and the shorter ones for the bottom holes, which is what you mentioned also . I anyway ended up following the instructions and all went well except that I am now unable to hear anything while in a phone call connected to the Bluetooth in my car. The phone connects, I have the battery and network status on the screen of my car, I can receive SMS on the car's screen, I can stream music to the speakers but I cannot hear anything while in a call. I can hear the call ringing in the car speakers, I can answer it but after that it's silent.
So, I was wondering:
1. Did you hear back on your comment from iFixit?
2. Did you install the screws back the way you mentioned in your comment? Did it work?
3. Did you check / note down the position of the screws at dis-assembly?
Thanks in advance.
Sobald er das hat, wird er in der Lage sein, eine Grafik zu seiner im Laufe der Zeit erlangten Reputation zu sehen.
Hier ist eine Vorschau, wie die Grafik aussehen wird:
Noch keine Reputation erlangt.