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I updated Kies today and my Samsung Galaxy S2 phone doesn't connect to my pc via Debug Mode any more.

Below is the screen shot

Missing driver in Windows Device Manager

When I uninstall that and try to reconnect I get an error saying driver install failed.

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try uninstalling the drivers before reinstalling the new drivers. – Ryan Conrad Feb 22 '12 at 15:31
That looks like Windows 7. Are you running 32 bit or 64 bit edition? – Chahk Feb 22 '12 at 18:56
64 bit version.. – Harsha M V Feb 23 '12 at 5:10
up vote 1 down vote accepted

Right-click on that "SAMSUNG_Android" and select Uninstall. Then make sure the Delete the driver... option is checked, and click the OK button. This should clear out the old drivers from the system. Now unplug the phone and try uninstalling and re-installing Kies. Reboot the PC and try plugging the phone in again.

If you are on Windows 7 64-bit, you may be able to bypass Kies software by installing this driver (remove the "SAMSUNG_Android" from Device Manager again before installing the driver.)

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