[emmur0]

Originally Posted by JSWolf

Install 4.30 manually. You can get 4.30 from https://pgaskin.net/KoboStuff/kobofirmware.html

Once you've installed it, go the the Kobo Developers forum and find the patches thread for 4.30. Then read that and read this
https://www.mobileread.com/forums/sh...78#post4204678 to read about which patch you need to apply to stop newer firmware from downloading and being installed when you sync or use Pocket.

I am running into the same issues as OP and looking to downgrade to 4.30. I've downloaded 4.30 from the pgaskin site and extracted to the zip to the .kobo folder on my Libra 2. What's the next step to manually downgrade to 4.30 as I am still on 4.31 after following those instructions?