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Hey guys...

I was thinking about writing an updated FAQ for ML in my spare time, but english is not my primary language. If you agree with this, I will need someone to review it.

Hi guys,

According to Canon Australia, once you upgraded your 5D3 to 1.2.1, you cannot rollback... (https://www.canon.com.au/Personal/Support-Help/Support-News/Firmware-Updates/EOS-5D-Mark-III-Firmware-Update-1-2-1)

Also, there's some issues with third party batteries not working anymore. See http://www.canonrumors.com/forum/index.php?topic=14354.msg262650#msg262650

I'm not going to upgrade until ML team speaks about 1.2.1.