john petal Posted November 17, 2013 Share Posted November 17, 2013 Hi all my friend.. ^_^.I have problem in windows 8.1 about android driver (flashtool).....when Sony xperia go to flash mode or fastboot mode ,i get error "unknown USB device (Device Failed Enumeration)" .......i've installed all driver (driver from developer sony mobile) for my phone but still getting error and i've tried to update driver online automatically via device manager but windows 8.1 said "the best driver for your device is already installed" ...............what should i do? thank's... :) Quote Link to comment Share on other sites More sharing options...
tezza Posted November 17, 2013 Share Posted November 17, 2013 Does this help ?http://www.droid-now.com/2013/10/fix-working-fastboot-drivers-windows-8-1-x64/ Quote Link to comment Share on other sites More sharing options...
john petal Posted November 18, 2013 Author Share Posted November 18, 2013 Not work sir....it's for windows 8.1 x64 and processor requirement intel core i3 or higher.i'm using windows 8.1 x86 :D Quote Link to comment Share on other sites More sharing options...
john petal Posted January 18, 2014 Author Share Posted January 18, 2014 problem fixed..... :) Quote Link to comment Share on other sites More sharing options...
Shashank123 Posted February 7, 2014 Share Posted February 7, 2014 problem fixed..... :)I am also having same problem while trying to connect my Sony Xperia J in fastboot mode..Similar error Device Enumeration Failed. I am trying to unlock the bootloader. Quote Link to comment Share on other sites More sharing options...
northboun Posted February 7, 2014 Share Posted February 7, 2014 (edited) Win 8.1x64GA-990XA-UD3(AMD) motherboardMy Xperia arc will only go into Fastboot Mode(using Flashtool) on a USB3 port. Edited February 7, 2014 by northboun Quote Link to comment Share on other sites More sharing options...
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