How to re-Flash controller votol em50-4.? and where to download firmware

Is this a question thread, or an instructional thread?

The title "How to re-Flash controller votol em50-4, firmware download" has no end-punctuation to indicate, and there is no posted text to clarify, only a picture of the insides of a controller held in a hand.
 
Is this a question thread, or an instructional thread?

The title "How to re-Flash controller votol em50-4, firmware download" has no end-punctuation to indicate, and there is no posted text to clarify, only a picture of the insides of a controller held in a hand.
Sorry, i ask how to re-flash, and where to download
 
I would also like to know where the original firmwares of votol em controllers can be obtained
 
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