Sony Firmware Update 2.10 for a7 III & a7R III

Sony has released Firmware Update 2.10 for a7 III & a7R III cameras with a fix for a bug found in the previous firmware version 2.00.

From the notes, it sounds as though this update might also resolve an incompatibility issue caused by a recent change to the design of SanDisk Extreme Pro UHS-1 SDXC cards (though I don’t have any affected cards to test.)

Benefits and Improvements from the latest update

• Fixes a rarely occurring bug in which the camera may stop functioning while writing RAW data onto an SD card that has already been used multiple times. Please Note:

    • • This may also cause abnormalities in the files managing the images, preventing the images from displaying on the camera


    • • No image data in the memory card will be corrupted or deleted aside from the data that was being written at the time the interruption occurred


    • Taking a picture while using the Auto Review function may occasionally cause the camera to stop responding

• Solves the problem caused by a specific third-party memory card, which would not be recognized by Sony cameras
• Improvement of the overall stability of the camera

[All Previous Benefits and Improvements are also included in this Update]

File Version


Release Date


Firmware 2.10 Download Links:

a7 III | a7R III