You can manually install a newer firmware version on a Kindle, but not older than it already has. I.e. you can only put 5.13.6 on it if it previously had an older firmware version than 5.13.6.
And no, don't install a Voyage version on anything that's not Voyage.
Last edited by Sirtel; 10-13-2021 at 05:55 AM.
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