The phone rebooted. Samsung logo. Then… black. Five seconds. Ten.
At 11:47 PM, Lena held her breath and clicked Start .
I notice you’ve mentioned a firmware string ( a107fxxu8buc2 ) followed by “root” — this looks like you’re asking about rooting a Samsung Galaxy A10s (SM-A107F) running a specific firmware version.
Then the screen flickered. A command line appeared. a107fxxu8buc2 root
She had tried rooting this phone twice before. First attempt: bootloop. Second: tripped Knox, killing Samsung Pay forever. But this time, the bounty was worth it — an old industrial controller app that required full system access. Without root, the hardware interface wouldn't talk.
She never did get the industrial app to work — turns out, the real treasure was just seeing that prompt on her device, her way. Two weeks later, she donated the phone to a repair café and bought a Pixel with an unlockable bootloader.
Lena typed su . The dollar sign turned into a hash. The phone rebooted
She exhaled.
Root. Finally.
Lena stared at the blue glow of her Samsung A10s. On the screen: A107FXXU8BUC2 . The last firmware before Samsung stopped pushing updates to this model. Five seconds
Pixel meowed.
Her cat, Pixel, kneaded the edge of the laptop. “Don’t,” Lena warned, sliding the USB cable out of reach.
The instructions were cryptic, written by someone called “xzibit_2009.” They involved flashing a patched boot.img via Odin, then running a script that disabled vaultkeeper — Samsung’s anti-root watchdog.
“Perfect,” she whispered. A build no one had patched yet — at least, according to the forums.