As you have noticed, the USB Device in Device Manager has a yellow triangle on it: The error can be caused by hardware issues. This will figure out if problem is caused by a broken port. If there is no problem with the USB port and the device, read on and try the following methods. Method 3 : Update the USB Driver The problem can be caused by faulty USB driver.
No worry, USB storage mode is still available on Android 4.0 ICS Samsung Galaxy S2 but located in other place… USB mass storage mode in Ice Cream Sandwich is better than Gingerbread. Driver Easy can scan your computer to detect all problem drivers, then give you new drivers instantly. To get new drivers, you just need to spend a few seconds. With Paid version, you can get higher download speed and full features. We should be able to use USB storage mode when enable USB debugging in Gingerbread.But it is not working on Android 4.0.3 ICS Samsung Galaxy S2.