Samsung Galaxy 7" (GT-P6210) not detecting for USB debugging?

Question

I am using ubuntu Linux 10.04 Pc in that my Samsung Galaxy 7\" (GT-P6210) homeycomb 3.2 is not detecting for development its showing in ecl

Answer 1

If, when you run adb devices, you see ???????????? in the list of devices, try stopping (adb kill-server) and restarting (adb start-server) the adb daemon.

Note that Samsung 04E8 is not a valid entry in 51-android.rules for udev. The correct line is:

SUBSYSTEM=="usb", SYSFS{idVendor}=="04e8", MODE="0666"

Also, make sure that you update the udev daemon after making this rules file change (sudo restart udev).