---
id: 4318
title: "A Nerd's Life: Weeks of Firmware Teardown to Prove We Were Right"
source_domain: blog.quarkslab.com
source_url: "https://blog.quarkslab.com/nerd-life-weeks-firmware-teardown-we-were-right.html"
published_at: "2026-03-11 23:00"
tags: ["hardware-security", "reverse-engineering", "firmware", "ghidra", "hardware", "smartwatch", "jieli"]
phying_url: "https://phying.com/item/4318"
lang: en
---

# A Nerd's Life: Weeks of Firmware Teardown to Prove We Were Right

## Summary

Quarkslab follows up its smartwatch firmware extraction with weeks of reverse engineering through JieLi's firmware format, proving the device's vital-sign measurements cannot be trusted.

## Intelligence Metadata

- **Sources:** blog.quarkslab.com
- **Published:** 2026-03-11 23:00
- **Original:** https://blog.quarkslab.com/nerd-life-weeks-firmware-teardown-we-were-right.html
- **Phying News:** https://phying.com/item/4318