Could Advanced Protection be the culprit?

Google won't allow people to (easily) sideload apps through APK files on certified Android devices starting in September 2026. It will still be possible, ...

Google has announced a new mechanism in Android called Advanced Flow that will allow sideloading APKs from unverified developers for power users in a more secure way.

Google says sideloading isn't going away, but a new multi-step "advanced flow" will make installing unverified apps slower and more secure.

Nosebleed is a recent jailbreak method for Amazon Kindle devices, specifically released in early 2026. It is designed to work ...