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So I tried to update my phone few hours ago, and something weird happened. There's a notification on my PC saying 'device failed enumeration'. This always happen in the step "press the volume down button while connecting the USB to the phone" and that occurs both using SUS and PCC. I have tried using another USB cable and it didn't work. I also tried to connect my Xperia Mini Pro, but that error also occured.
Then I tried to use another laptop and that error didn't occur! So I think it's the driver issue. Has anyone experienced this before? Please someone give me the solution for this... I have googled everything and didn't find the right solution. Thanks.
When you have it connected like that please try the below steps:
To solve the issue, open Device Manager on your computer to reinstall the driver for your device while your device is connected with your PC via a USB cable.
Microsoft Windows Vista and 7 users
To open Device manager on your computer
Click on the Start button.
In the Search box, type device manager, and then press enter.
Microsoft Windows 8 users
Method 1
To open Device manager on your computer
Click Windows Key + X to open the Start Menu.
Select Device Manager from the Start Menu.
Method 2
To open Device manager on your computer
Click the Desktop Tile to open the Desktop.
Click >> at the bottom right of the taskbar.
Select Control Panel from the Menu.
Select Device Manager from the list of control panel items.
Note: If you do not see the screen with the Device Manager option, click the View by drop-down menu and select Small icons.
Microsoft Windows XP and 2000 users
To open Device manager on your computer
On the desktop, right-click on My Computer and click Properties.
In the System Properties window, click the Hardware tab.
In the Hardware, tab click the Device Manager button.
To reinstall the drivers for your device
Scroll down to the Universal Serial Bus controllers (USB section) of the Device Manager window. If no reference to your phone show here, please the "Portable Devices" section.
Look for a referrence to your phone. Click on this entry and choose "Uninstall" whilst leaving the device connected.
Wait a few minutes, and the computer will reinstall the drivers for the device.
Now, the phone is accessible via Computer/My Computer on your computer.
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I have tried this many times and still didn't work...
Anyway, I only got this error while trying to update (turned off and connected while pressing the volume down button), but when I connect the phone in MSC/MTP mode,