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This tutorial is written specifically for the A55, but the process should be the same for all cameras. Instructions are available for both Windows and Mac OS X.

WindowsEdit

What You'll NeedEdit

Unpacking ProcedureEdit

Win 7-zip options

7-Zip Options Window

  1. If you don’t already have 7-zip on your computer, download it from the link above and install it.
  2. Download the firmware for your camera from Sony’s Support page (see link above). Once you’ve entered the model number of your camera, you’ll be able to download the updater under the “Drivers and Software” tab.
  3. Go to folder where you saved the downloaded firmware and right click on it to bring up the context menu.
  4. Launch "7-Zip File Manager" from the Start Menu.
  5. In the menu bar, click on "Tools", then "Options...".
  6. In the pop-up Options menu, under the "7-Zip" tab, if the "Integrate 7-Zip to shell context menu" box isn't already checked, check it and then click Apply and OK. Close 7-Zip File Manager.
  7. In "Windows Explorer"", go to folder where you saved the downloaded firmware and right click on it to bring up the context menu.
    Win 7-zip-context menu

    7-Zip Context Menu in Windows Explorer

  8. In the context menu, under “7-Zip”, select “Extract file...” to launch the "7-Zip Extract" window.
  9. In the "Extract to:" section, selection where you would like to extract the files. You'll need to extract the files to a folder where you have read/write permission (e.g. Desktop). Under the "Path mode:" drop down menu, select "No pathnames". Once you've selected the extraction destination, click OK.
    Win 7-Zip extract

    7-Zip Extract Window

  10. You should now have a new folder that is the same name as the updater file. Open that folder and then open the folder inside it named “Resource”.
    Win windows explorer extracted folder

    Extracted Firmware folder

  11. Isolate the file named “FirmwareData_user_21.10.02.2011033010_203_02_loader.dat”; it should be the largest file.
    Win windows explorer extracted contents

    Firmware file in Windows Explorer












Mac OS XEdit

What You'll NeedEdit

Unpacking ProcedureEdit

Mac show package context
  1. Download the firmware for your camera from Sony’s Support page (see link above). Once you’ve entered the model number of you camera, you’ll be able to download the updater under the “Drivers and Software” tab.
  2. Go to the directory where you saved the downloaded file and mount the image.
  3. Move the “FirmwareUpdater.app” to a desired location (e.g. Desktop).
  4. Right-click on “FirmwareUpdater.app” to bring up the context menu.
  5. In the context menu, select “Show Package Contents”. A finder window should open display the contents of the application file.
  6. Open the “Contents” folder, then the “Resources” folder.
  7. Isolate the file named “FirmwareData_user_21.10.02.2011033010_203_02_loader.dat”; it should be the largest file.
    Mac firmware contents

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