This is how I remember it is supposed to work, but at some point I had problems with it. Lately I've been downloading the boot image to patch and flash it.
this post was submitted on 15 Nov 2025
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For updates between minor versions, I just use the LOS updater in settings. I haven't seen any suggestions to uninstall Magisk beforehand, is that device specific perhaps?
I do usually need to patch and flash a file to get root again after installation.
This method is to preserve root after updating instead of having to reflash it again.
TIL. Will have to look it up for future updates. Preserving root is really the only drawback of updating LOS/mG.
what's this other slot thing, can you explain it a bit? I've seen the option but never used it.
I do it the stupid way, rarely update LOS precisely because I have to reinstall magisk again.
Per non_burglar... It's called A/B boot. The purpose is to enable live update. Update while using the device without interruption, then when it finishes, the next reboot uses the new version. Thus, an update/upgrade is actually updating the "slot" not currently in use.
Modern phones (after about 2016) use two boot slots for for the bootloader.