[cantalupo]

I recently jailbroke a Kindle 5 running firmware 5.14.3.0.1 using LanguageBreak, and I proceeded to install KOReader.

I'm extremely satisfied: the app is much more ergonomic and customizable than the default reader.
Most importantly, it now allows paragraph translation using a language model (LLM).

Overall, everything is working perfectly. However, my only concern is about using the internet: I’m not sure to what extent it’s safe to enable Wi-Fi without risking an automatic system update.

Since I purchased it, the Kindle has always remained in airplane mode. But now, with KOReader, I’d like to take full advantage of the online search and translation features.

The jailbreak guide explicitly states that Wi-Fi should remain disabled, but I’ve read elsewhere that using the internet with KOReader shouldn’t pose any risk of updates. Also, as far as I know, there are no hotfixes available to block updates for this firmware, and I believe a downgrade isn’t possible, as it’s the device’s original firmware.

Is there a reliable way to prevent an unexpected update?
I’d also like to pass the Kindle on to my mother, so ideally, I’m looking for a solution that doesn’t require ongoing monitoring or intervention.

Thanks in advance for any help