EOS M3: how to downgrade the firmware ?

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EOS M3: how to downgrade the firmware ?
« on: 14 / July / 2016, 07:22:45 »
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Hello everyone,
I would like to test the CHDK and downgrade the firmware 110 to 101a.
Which approach would you recommend me?
Thank you in advance.
BR, Wianki

 

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