Yes, it's a Bluetooth issue... why is Bluetooth so problematic? My new M4 Aqua cannot send files to my PC; my PC can send files to the M4 I can't pair the M4 with my car Bluetooth for hands free phone calls. The car is only a year old and all worked as it should with my now redundant HTC phone running Android Gingerbread. I set the car system as 'discoverable'; the M4 doesn't discover it. I ensure the phone is 'discoverable'; the car doesn't see it. My questions are "Has anyone else had those problem?" and if so... "How did you solve them". Other than that, very happy with the phone. Any negative comments from reviews I tend to disgaree with. The only real issue is that camera is what you'd call 'so-so' but then I didn't buy it because I needed a camera. Screen quality good, sound quality good (it drives my Grado headphones well), call quality good, it can replace my Andoid tablet when traveling... which is what I wanted to achieve. Now I just want hands free telephone calls. Then I'll be totally happy Regards, Derek