[Guide] Install Flashtool On Windows 8.1 [Fix] ~ Tanvir Hasan [28-03-2014]

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tmwky

Member
Mar 28, 2014
5
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Dhaka
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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. :cool:

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 :cowboy:
 

zona77

Senior Member
Jan 21, 2011
52
3
i got an error code 0x80080005 after intalling windows update. i'm running windows 8.1 32 bit. any solutions?? thx be4 :)
 

SaGaR_

Senior Member
Apr 5, 2013
231
34
it doesnt work, the update thing says that the update isn't for my pc and the testsigning is protected or something
 

somsiadmp

New member
May 7, 2015
1
0
it doesnt work, the update thing says that the update isn't for my pc and the testsigning is protected or something

Same problem here, can't install the update or unlock the thingy in CMD. Tried the other method too, no luck. When I try to install Flashtool drivers i always get the "DPInst.exe doesn't execute..." message, or drivers just fail to install- depending on which compatibility mode I try to run.

Any ideas?
 

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    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. :cool:

    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 :cowboy:
    1
    Awesome

    Thanks :cowboy: it works :good: