How can I downgrade my WP 7.8 to 7.5?

qwertyasadd

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Nov 13, 2014
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Downgrading WP 7.8 to 7.5

Hello everyone.

As updating my Lumia 800 to version 7.8 included the preposterous thing of lowering the volume of my phone by a tremendous amount, I'd like to downgrade it back.
I tried using Zune for that, but it gives me an error so I'm not able to do it.
I've been Googling for some answers and I found something about a programme called NaviFirmPlus but there seems to be an issue with it.
Is there any way which I could use to downgrade my phone back to 7.5?

Regards
 

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