USB and Bluetooth Music Streaming problem - 2.184/2.140/2.600
I have a 2013 GC with an Australian RHP radio with navigation. Firmware v2.6 from SOX.
I recently noticed that I could no longer stream music from my iPhone 4s that had been upgraded to 8.1. I then tried to connect it via USB to play music which also didn't work. Thinking this was an iPhone issue, I read all the suggestions to reset settings etc and performed these to no effect.
I then tested another phone - Nokia Windows Phone 8.x - which also didnt work via bluetooth streaming. It too displayed the error - failed to read (same as iPhone). I then checked connecting both phones via USB - this didnt work. I checked a USB stick (formated FAT32) - this didnt work. All devices could get power from USB, both from the head unit and from the glove box.
Since updating to v2.6 ages ago, i couldnt get Gracenotes to work (v5.412 also from SOX - PS thanks for all your updates SOX), but this didnt bother me. It showns Gracenote N/A. So then I thought maybe the v2.6 hadnt installed correctly, or has caused this bug. I downgraded to v2.184, but still had the same problem - no USB and Bluetooth music playback.
I read about Engineering mode, and reset to Factory Defaults. This made things worse - I couldnt connect to either phone via bluetooth. I Factory reset again, and Bluetooth for phone calls was now working again, but no music support. Unfortunately this looks like it wiped the music on the hard disk (and i cant add any back in via USB), but luckily has not affected the navigation.
I downloaded and installed the v2.140 (from SOX - legend), but this hasn't fixed anything. Bluetooth phone calls work, USB power works, but USB and Bluetooth music playing dont work with iPhone, Windows Phone and USB stick.
Any suggestions as to what i should try next to fix this issue will be greatly appreciated.
PS: just in case it wasnt clear - bluetooth music streaming to iPhone has worked in the past, and USB playback has worked but I'm not sure which radio fw version this was using.
Thanks in advance,