MobileRead Forums - View Single Post - understanding FW updating and downgrading

davidfor · 08-30-2017, 07:37 PM

@arslonga: As DNSB said, you can downgrade in exactly the same way as the upgrade. But, it isn't supported, and doing it via a factory reset is the recommended way. But, it will usually works. The only proviso I have is not to go to far. And that there are some versions where it might not work. Going back to the previous version will almost always work. But, going back four or five is more likely to cause problems. Plus, there are some upgrades that fiddle with the database in a way that isn't backwardly compatible. From memory, the last one was somewhere in the 4.1.x firmware.

08-30-2017, 07:37 PM	#3
davidfor Grand Sorcerer Posts: 24,905 Karma: 47303824 Join Date: Jul 2011 Location: Sydney, Australia Device: Kobo:Touch,Glo, AuraH2O, GloHD,AuraONE, ClaraHD, Libra H2O; tolinoepos	@arslonga: As DNSB said, you can downgrade in exactly the same way as the upgrade. But, it isn't supported, and doing it via a factory reset is the recommended way. But, it will usually works. The only proviso I have is not to go to far. And that there are some versions where it might not work. Going back to the previous version will almost always work. But, going back four or five is more likely to cause problems. Plus, there are some upgrades that fiddle with the database in a way that isn't backwardly compatible. From memory, the last one was somewhere in the 4.1.x firmware.