[Solved]-Samsung Android device won't go in debug mode-eclipse

you can also specify the device vendor in android adb settings file.

first you need to find the device vendor. in windows go to start->control panel->device manager->android device->open the adb device driver you will have 3 tabs, 'general','driver','details'.

go to 'details', select from the combo 'hardware ids' and look at the value, it should be something like that: usb\vid_xxxx&pid_yyyy

hardware vendor is : xxxx

now you need to add the vendor in the adb settings file:

its located in: c:\users\.android\adb_usb.ini

just insert : 0xxxxx

at the end of the file. save and start adb again(with kill-server)