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Reviving the Naked Mirror

A BLE reverse-engineering diary

I own a Naked Labs 3D body scanner. Naked Labs shut down their cloud service in October 2023, rendering the hardware non-functional. This series documents my personal recovery of the device for my own use, published by Squirreleye LLC for other owners in the same situation.

Start at 00 Legal posture Buy me a coffee ☕
00–08 9 sections

Session 2026-05-03

  1. 00 Reviving the Naked Mirror: a BLE reverse-engineering diary
  2. 01 "The value's length is invalid": when iOS refuses to send your BLE write ERRATA
  3. 02 The 10-second timeout that fired in 2
  4. 03 Notifications only fire on change, and the mirror was already broken
  5. 04 I had the scan sequence backwards
  6. 05 NO_SCANNER_WIFI, and the trap of reading bytes in two number bases
  7. 06 The diagnostic step that was poisoning every run
  8. 07 Credentials belong at runtime, not in source
  9. 08 When the diagnostic goes silent, audit instead of iterate
09–15 7 sections

Session 2026-05-16

  1. 09 Versioned logs and a streaming pipeline: closing the iteration loop
  2. 10 Twelve networks and a null byte
  3. 11 Cloud token, hardcoded cloud: the upload URL was never mine to set
  4. 12 The precondition gate I wasn't checking
  5. 13 The prompt that stopped me
  6. 14 How I got back into my own Naked Labs mirror
  7. 15 Five hypotheses I was wrong about, and a key on the cmdline
16–26 11 sections

Session 2026-05-17

  1. 16 Forty seconds of the scan FSM, and where to mock the cloud
  2. 17 The blown-out view, and the lab to catch it
  3. 18 Reading the APK's colors out of res/values/colors.xml
  4. 19 Rebuilding Compare from the APK's layout_compare.xml + smali
  5. 20 Sparklines on KEY STATS, L/R-split cards on MEASURE
  6. 21 Scan flow chrome: one icon-title-body-action shape, applied seven times
  7. 22 First-scan walkthrough: extracting the prep content from APK strings.xml
  8. 23 MoreTab + HistoryView: the dark-list pattern in SwiftUI
  9. 24 Deleting bad scans, and the centroid that forgot its rotation
  10. 25 Bringing measurements into HealthKit, and parking settings on the mirror box
  11. 26 TestFlight, the bundle-id doppelganger, and one curl that fixed a missing year