I've got an old phone sitting in a drawer doing absolutely nothing. No SIM. No plan. No purpose. Just a $600 brick collecting dust. So I'm turning it into something. The project: wipe it, strip it down, and rebuild it as a fully offline device. No carrier. No cloud. No constant sync. Just a self-contained tool that works with zero signal and zero internet. Why I'm doing it: Most people underestimate what a phone actually is. It's not a "phone." It's a pocket computer with a camera, a screen, a battery, storage, sensors, and Wi-Fi radio — and we throw them in drawers the second we upgrade. That's wasted hardware. I want to see how far I can push one. What I'm planning to build into it: ⚡ Offline knowledge library — Wikipedia, survival guides, medical references, repair manuals stored locally. Full library, no signal needed. ⚡ Offline maps — the entire region downloaded, GPS still works without service. Phones use satellites, not cell towers, for location. ⚡ Local AI — I already run models locally on my machine. I want to see what a small model can actually do on a phone with no API, no subscription, no data leaving the device. ⚡ Dedicated focus device — no social apps, no notifications, no algorithm. Just books, notes, and audio for deep work blocks. ⚡ Security cam / dashcam — mount it, let it run, pull footage over local Wi-Fi. ⚡ Emergency backup — documents, contacts, passwords, and instructions that survive when the internet doesn't. What I'm actually testing: Can a device with no service still be genuinely useful? What breaks? What surprises me? What's the real ceiling on hardware everyone else calls obsolete? I don't know yet. That's the point. I'll be documenting the whole thing here — the setup, the wins, the dead ends, and the exact steps so anybody in here can do it with their own drawer phone. Building in public. Mistakes included. 👇 Two questions: 1. How many unused phones do you have sitting around right now? Be honest. 2. What would YOU want an offline device to do?