I am tearing my hear out trying to get an adb connection with my Tronsmart MK908 (same problem with an MK809 II I have) and would welcome any suggestions. I have a number of Android devices, a couple of small A10 tablets, HTC One X and Desire and can get all of them to work happily with adb (both in Windows and Linux) but the MK908 and MK809II just aren't happy. I have USB debugging on of course. The MK809 has a 'connect to PC' option which I have tried both on and off. MK908 doesn't but USB debugging is on. Windows drivers are installed and good (I think). Linux should just work. In Windows I have tried removing the ADB drivers and installing all sorts of different ones from HTC, Allwinner A10, PDANet etc, adding VID and PID manually into the inf file. Anything obvious I am missing?