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I spent $266 and four AI models to own my tablet. GLM-5.3 finished it in a day

Ranked #1 on Hacker News with 299 points and 118 comments.

My Amazon Fire HD tablet cost $114.26 on eBay in November 2022, new and sealed. Owning it for real cost another $266.15: Kimi K3 found the exploit for $164.25, GLM-5.2 caught its fatal bugs for $21.90, and GLM-5.3 finished the job in one day on day one of an $80 subscription. Claudeโ€™s five months of diagnosis ran on the Claude Max plan I already pay for, until its safeguards cut me off.

Thatโ€™s enough to buy the same tablet twice. Iโ€™d spend it again: it was fun, and I learned a lot. I have twenty years in tech and an InfoSec background and the most sophisticated thing I did to own my tablet was prompt an LLM.

I bought an Amazon Fire HD 10 (11th gen, 2021) to serve one purpose: Fully Kiosk Browser , displaying my Home Assistant Smart Home dashboard, plugged in 24/7. Last winter it started powering itself off. Full shutdowns, not sleep, sometimes twice a day. The deviceโ€™s own telemetry was telling:

Something on the device with shutdown permissions was choosing to shut it down.

Claude Code and I spent months on the cat-and-mouse. Iโ€™ll skip the Adguard Home DNS blocking, the camera forensics, and one deeply wrong charging diagnosis. The short version: we disabled five Amazon services that held REBOOT and SHUTDOWN permissions, which worked for a few months but ultimately:

Three Amazon packages held reboot rights and were protected from me, the owner. Removing them required root. This tablet had no published root method. An XDA brainstorming thread for the 2021 HD 10 existed since October 2022, but Amazon fused the bootrom shut. Conventional wisdom (and less persistent folks) says unrootable.