Show HN: Hacking a $20 4G wireless hotspot into a texting device
bobili1234 · hn · 2026-09-15
- The author reverse-engineered a $20 4G wireless hotspot and turned it into a standalone texting device.
- The full write-up (bkovac.github.io/modem-thing/) documents how to repurpose the hotspot's internal modem for SMS over cellular, offering a complete, reproducible low-cost hardware hacking path.
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