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Don't be like me: almost bricked my daily driver. SAVED BY ~~SAMSUNG~~ ANDROID(?) DEVS (programming.dev)

submitted 5 days ago* (last edited 5 days ago) by emotional_soup_88@programming.dev to c/android@lemmy.world

9 comments fedilink hide all child comments

~~While I usually don't condone proprietary software or hardware, I have to give a thumbs up to the One UI/Samsung devs.~~

I was "playing around" with my Samsung S23 - which by the way I have debloated to the point of it feeling snappier than all the bleeding edge iPhones - I "accidentally" messed up my recovery partition. Here comes the thumbs up part.

Instead of falling into a bootloop or becoming bricked in any way, some sort of failsafe mechanism kicked in, sending the user (me) to the download mode. So instead of leaving me with a brick containing all my music, contacts, banking stuff and, well, my everyday life, it allowed me to reflash a working recovery partition, albeit not the official one but TWRP since I - in my panicked state - could not find an image of just the Samsung recovery (I would have had to reflash all of Android...).

WELL DONE programming it so that it takes you to download mode! :D

PS: If you're going to experiment, don't do it on your daily driver. Don't be like me.

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[–] frongt@lemmy.zip 14 points 5 days ago (3 children)

Isn't that part of stock Android?

[–] emotional_soup_88@programming.dev 7 points 5 days ago (1 children)

Is it? I just assumed it was Samsung, since the download mode was displaying an error saying something like "failed to verify Samsung recovery checksum" as if it was expecting a Samsung image.

[–] otacon239@lemmy.world 10 points 5 days ago (1 children)

Yeah, going as far back as my Nexus 4, I soft-locked that thing maybe half a dozen times. The download and bootloader modes are traditionally supposed to act like a computer BIOS so you’re never left without the ability to flash a new OS. Unfortunately a lot of manufacturers have locked down the OS a ton and don’t let you easily get into these modes anymore. I’m honestly surprised Samsung didn’t lock this down, although I suspect it only accepts signed packages for flashing.

[–] emotional_soup_88@programming.dev 2 points 5 days ago

Sweet! This taught me some about those modes. Do they perhaps also reside on their very own eeproms or similar chips so that they are not easily erasable?

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