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Site relaunch

Around three years ago, I started a blog using the FSFE’s member services. Last year in May, I took it down for various reasons. I am happy to announce that large parts of its content are now back online - in a fresh format!

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How a single unprivileged app can brick the whole Android system

This article is highly subjective and only states the author’s opinion based on actual observations and “wild” assumptions. Unlike stated in the title, it might apply only to LineageOS and not to the original AOSP. Better explanations and corrections are warmly welcome! Motivation After updating an App from the F-Droid store (OpenCamera), my Android device was completely unusable. In this state, the only feasible option for a typical end-user to recover the device (who does not know how to get to safe mode in order to remove or downgrade the app [5]) would have been to wipe data in recovery, loosing all data.

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Backing up and restoring data on Android devices directly via USB

Motivation I was looking for a simple way to backup data on rooted Android devices directly to a device running GNU/Linux connected over a USB cable (in my case, a desktop computer). In the following, I describe two ways how this can be accomplished.

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