maemo.org - Talk - View Single Post - Sailfish OS (officially) on Sony Xperia devices

	pacman	2017-10-11 , 08:34
	Posts: 89 \| Thanked: 532 times \| Joined on Sep 2015	#1468

Originally Posted by pasko

Hi.

OK. I have done a factory reset of my Xperia X just to realize that it won't go back to Marshmallow.
Instead, it will reboot into the latest update I had already installed.
So, if you're planning to backup your DRM keys you better not update anything when buy a new device or you'll have to do an extra flashing (I'm guessing here).

Regards.

I may have misunderstood what you mean, but you need to do more than a factory reset to go back to Marshmallow: you need to download and flash a Marshmallow image. See elsewhere in this thread for more details, but in outline the best source of suitable images seems to be to use Xperifirm and download either the shopfront or journalist/press images. You can then back up the DRM keys.

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