a7 IV Sony A7 IV Firmware Update v1.01

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Timothy Mayo

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Pro Member
Pro Member
Mar 1, 2020
United Kingdom
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Sony has released the first firmware update (v1.01) for the Sony a7 IV. This firmware improves the accuracy of the Eye AF and fixes an issue where you may not be able to take photos when using the SEL2860 lens.

Although the Sony a7 IV supports firmware updates via memory card, for some reason it's not supported with this version and you'll need to connect your a7 IV to a Mac or Windows computer using the included USB cable to install the firmware. Mac users also need to install the Sony Camera Driver, there's a version for Apple and Intel silicon.
Also make sure your battery is fully charged. You'll need to select "MSC Mode" for Mass Storage when you connect and turn on the camera.
Don't turn off the camera before the update is complete. On mine it took around 30 minutes to complete!

Have you already installed the firmware? If you have noticed any improvements please drop a comment below.

Further details in the blog post here: https://www.alphashooters.com/cameras/sony-a7iv/firmware/
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