Quote:
Originally Posted by acanthicus
You will find lots of information in this thread and the link it provides at the top:
https://www.mobileread.com/forums/sh...ad.php?t=64510
PRS+ is a kind of addition to the normal firmware. It does not replace the original firmware (I learned this by using the link above  .
I think you can delete it, but I never did that, because I like it better than the original. I don't remember if the battery drains more, because I installed it a long time ago. Nowadays the battery life is not as good as in the T3, because the replacements I installed (at a time when it was possible to find working ones) were never as good as the original sony ones.
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I tried PRS+ on my 650 and it drained the battery big time. And now it's no longer supported I would forget it.