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Hardware deep dives, embedded firmware notes, software craft, and the occasional opinionated take. Filter by category or tag, search by keyword.

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The LP715 watch board and its 80x160 display showing the custom graphics test, on a dark workbench
Hardware
Oct 11, 2026/ 23 min read

Hacking Another ₹249 Smartwatch: Custom Firmware on PHY6222

My second ₹249 smartwatch hid a PHY6222. I found its reset pin, stole the display init from the stock firmware, and updated it over BLE.

Reverse EngineeringPHY6222SmartWatchBLE
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Reverse Engineering MoYoung Watch Faces in the Browser
Software
Jul 26, 2026/ 14 min read

Reverse Engineering MoYoung Watch Faces in the Browser

A gifted Porodo watch, no SDK, and a binary format nobody documented. How I ended up writing a watch face editor.

Reverse EngineeringSmartWatchMoYoungDaFit
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