Article ID : S1Q0488 / Last Modified : 03/31/2015

SEL35F28Z Lens Update Issue

    Updated: 06/09/2016

    Thank you for your interest in Sony products.

    Sony recently became aware that some of the SEL35F28Z Sonnar T* FE 35mm F2.8 ZA E-Mount lenses sold during and after November 2014 may experience an issue when you try to update the software to the new version released on March 4, 2015 (from version 01 to version 02).

    We apologize for any inconvenience this may have caused and thank you for your understanding and cooperation.


    The software update freezes at the screen below when you start the version 02 software update.

    Update Frozen Screen
    Update that has frozen.
    Update Normal Screen
    Update that is proceeding normally.

    If the update freezes, remove the battery from the camera to stop the update. After replacing the battery you can continue to use the lens with the pre-update version 01 software.

    Affected Lenses

    This issue affects SEL35F28Z Sonnar T* FE 35mm F2.8 ZA ?™ (E-Mount) interchangeable lenses purchased during or after November 2014, with software version 01, within the following serial number ranges:
    1812043 - 1851015
    1840715 - 1850381
    Note: Not all lenses within the listed ranges are affected.

    How to find your lens model and serial number:

    The model and serial number are listed on the label on the side of the lens

    Model and Serial Number

    How to check the software version:

    1. Attach the lens to the camera.
      Note: Please make sure the camera is off before you attach the lens.
    2. Power on the camera.
    3. Press the Menu button.
    4. At the Menu screen, select Setup.
    5. At the Setup screen, select Version.
    6. The software version is displayed on the LCD screen.
      System Software Version Screen
      Note: If your lens has software version 02, it is not affected by this issue.


    Sony will provide free repairs of affected SEL35F28Z lenses until March 31, 2017. If you have an affected SEL35F28Z lens, please contact the Customer Service Center for your region:

    Country Phone Number
    Mexico 01800-759-7669
    Chile 800-261-800
    Argentina 011-6770-7669
    Puerto Rico 01800-601-7669 or 1-787-793-7669
    Colombia Bogotá: 3581251
    National: 01-8000-94-00-11
    Panama 800-2050
    Peru 0-801-1-7000