1. #1
    Unregistered

    Getting an error "E-signature verfication failed" when trying to upgrade the Android version of Samsung Galaxy S GT I9003 mobile

    I am using samsung galaxy s gt I9003 & i tried to upgrade my phone to Ice Cream Sandwich via SD card but getting error that E-signature verfication failed. So pls can you help me with that .Please send the solution to my mail id is udaykhuman@gmail.com

  2. #2
    wasim wasim is on a distinguished road
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    Apr 2013
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    2

    Re: Getting an error "E-signature verfication failed" when trying to upgrade the Android version of Samsung Galaxy S GT I9003 mobile

    Step #1: Download the TouchWiz launcher to PC.
    Step #2: Plug the device to PC using USB cable.
    Step #3: Transfer the downloaded file to SD card of device.
    Step #4: Disconnect the device from PC.
    Step #5: Turn the device off.
    Step #6: Reboot the device into recovery mode by holding down volume up, home buttons and power button until screen turns on, (Note: In recovery mode use volume keys to navigate and power button to select).
    Step #7: Select “Install Zip from SD Card” then “Choose Zip from SD Card” and locate the downloaded file that you’ve transferred in above step and confirm installation. Wait till installation complete.
    Step #8: Once the installation is completed, select “Go Back” after that select “Reboot System Now.”
    That’s it, you’ve flashed the Touchwiz launcher on your Galaxy S, don’t forget to comment below about this awesome launcher, all credited goes to XDA for this great effort.

  3. #3
    Android-solutions Android-solutions is on a distinguished road
    Join Date
    Sep 2012
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    1,052

    Re: Getting an error "E-signature verfication failed" when trying to upgrade the Android version of Samsung Galaxy S GT I9003 mobile

    hey friend ..

    Just follow the steps given below and you will be able to update your software in your Samsung Galaxy android phone :

    - First of all make sure that you have samsung kies software being installed into your PC..
    If you dont already have then you can download it from the samsung.com site..
    - Then make sure to take backup of all the important data of your phone to the PC
    - After you have installed the kies software into your PC make sure that your phone has no open applications in it ..
    - Now connect your phone with the PC using the usb cable and select samsung kies in your phone when prompted
    - Next open the kies software in your PC and make sure that your PC is connected to the internet
    - The kies software will search for available software update for your phone ..
    - Then you will be prompted to update your firmware ..just click on update option and then wait..
    - The moment you hit update option kies will download the update from the internet to your phone and then install it ..
    - When done you will be prompted to restart your phone ...
    So , just restart your phone and then you are done with the software update process..

    thanks

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