Mobile device not working 8.1 FIX
Quick fix for your mobile device not working in Surface 8.1 preview ( mine Samsung Galaxy S2) just go to settings>change pc settings>update & recovery>recovery>refresh. Just wait until it finishes and plug in your device and voilą.
Tried and tested on cameras and several mobile phones.
Not my hard work as found this on MS forums - thanks AlphaPapa 😊
Phone: Samsung Galaxy GT-I9100P
Tablet: Samsung Galaxy Tab 2 10.1 GT-P5110 - CM10.1Nightly
Tablet: Windows Surface RT