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Flash A Full Firmware With Spft For Acer Iconia (mtk) Tablets (back To Original / Unbrick

Discussion in 'Acer - FAQ, Guide, How To, Tutorials' started by Silent Angel, Feb 15, 2016.

  1. Silent Angel

    Silent Angel Qmobile Supporter
    Pakistan
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    [​IMG]
    Devices compatible with this Guide :
    • A1-713
    • A1-713HD
    • A3-A20
    • A3-A20FHD
    Download:
    1 FlashTool:
    - A1-713 & A1-713HD
    - A3-A20 & A3-A20FHD

    2 Firmware:
    3. Driver
    • Download MTK Drivers : MTK_SP_Drivers_v1.4.rar (last one unsigned) or MTK_Signed_Drivers.zip (older but signed for Windows 8)
    • Open your Windows device manager
    • Remove your battery from your device, or unplug it, or make sure your device if off
    • Plug your device to your PC with USB cable (a good cable, on a direct back USB port, avoid front USB ports)
    • A "MTxx Preloader" device should appears for a few seconds, install drivers for it
    • Unplug, replug the USB cable, your device should be well regconized (a COM device in USB Ports & Com)

    Flash the firmware
    • Download the Firmware archive and the SP Flash tool for your device
    • Unzip both SPFT and Firmware archives
    • Run flash_tool.exe has an administrator
    • The program can prompt that a scatter file is required, click on OK.
      [​IMG]
    • Click on "Scatter-loading" and choose the scatter MTxxx_Android_scatter_emmc.txt file from the Rework-Secrodirectory under the Firmware directory
    • You should have something like :

    • [​IMG]
    • Make sure only SEC_RO partition is checked, you're in "Download Only" mode and click on "Download": SPFT is now waiting for a device a COM port to Flash
    • /!\Remember never use the Format pattern to download versions.
    • Remove your battery from your device, or unplug it, or make sure your device if off
    • Plug your device to your PC with USB cable (a good cable, on a direct back USB port, avoid front USB ports)
    • The flashing process will start automatically : do not unplug your USB cable !
    • Wait for a Green Circle saying the flash process is finished
    • [​IMG]
    • /!\ Do NOT power on your device, it must be stay off
    • Now, Click on "Scatter-loading" and choose the scatter MTxxx_Android_scatter_emmc.txt file from the root Firmware directory
    • You should have something like :
      [​IMG]
    • /!\ It's recommended to uncheck the "PRELOADER" partition, you can try to make the process with this checked only if it failed before while unchecked.
    • Make sure the download pattern is “Firmware Upgrade”, and the firmware secro-sign.img is used instead of secro-sign.img from the previous folder
    • Click on "Download" : SPFT is now waiting for a device a COM port to Flash
    • Remove your battery from your device, or unplug it, or make sure your device if off
    • Plug your device to your PC with USB cable (a good cable, on a direct back USB port, avoid front USB ports)
    • The flashing process will start automatically : do not unplug your USB cable !
    • A red bar for COM loading, a purple bar for Preloader Flashing, a yellow bar for Firmware flashing
    • Wait for a Green Circle saying the flash process is finished
      [​IMG]
    • Close SPFT, unplug USB Cable, put back your battery, charge your device for 10min, try to boot it
     
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  2. halledj

    halledj New Member
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    flasher avec infinity cm2 farmat ok
     
  3. halledj

    halledj New Member
    algerie
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    Acer_AV0K0_A3-A20_1.018.00_WW_GEN1
     
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