Flashtool For Xperia Devices
Flashtool : It's a S1 flashing software that works for all Sony phones from X10 to Xperia Z Ultra. They all use the S1 protocol for flashing firmwares.
If you're having with Flashtool install or Fastboot ADB Driver installing issues on Windows 8.1 and Windows 8.1 (64bit), then you should take these steps to solve this.
Flashtool : It's a S1 flashing software that works for all Sony phones from X10 to Xperia Z Ultra. They all use the S1 protocol for flashing firmwares.
If you're having with Flashtool install or Fastboot ADB Driver installing issues on Windows 8.1 and Windows 8.1 (64bit), then you should take these steps to solve this.
All helpful Screenshots about this guide is here
Step 1
Download Flashtool From Flashtool Website Last Version : 0.9.15.0[/COLOR]
If links not work, dont worry they update their links.
Then Download This Windows Update
download.microsoft.com/download/2/6/4/264323EB-9942-4301-9DBD-B6FD4BB8ABA2/Windows8.1-KB2917929-x64.msu
Step 2
Install Windows Update
Step 3
Install Flashtool
Step 4
Then Open CMD (Run as administrator) Then Paste this code and Press Enter.
Code:
bcdedit /set testsigning on
and Then Restart your PC.
Step 5
Install Flashtool Drivers (Run as administrator) from "C:\Flashtool\drivers"
Step 6
Then Open CMD (Run as administrator) Then Paste this code and Press Enter.
Code:
bcdedit /set testsigning off
and Then Restart your PC.
if this isnt work on your pc then try also this.
Step 1
Go to Settings (Charms Bar) > Change PC Settings > Update And Recovery > Recovery > Restart Now (Advanced Startup)
it will restart to Advance Startup automatically
Step 2
In Advance Startup
Troubleshoot > Advanced Settings > Start-up Settings > Restart
Step 3
After rebooted you will get this screen. Here to choose options we have to use function keys. Now press "F7" to select "Disable Driver Signature Enforcement" .
Now your PC will boot with Disabled Driver Signature Enforcement and you will be able to install Flashtool/Fastboot drivers.
Thanks Button Please' if this thread helped you