Session 06 — 2026-03-16f — First TWRP Flash; Stale OTA; Display Dead

Session 06 — 2026-03-16f

Duration: ~1.5 hours · Phase: 03b (TWRP)


Key Events

  • fastboot flash recovery hung at “Sending” — fastboot unusable for writes
  • Flashed via EDL: 53 MB at ~20 MB/s ✅
  • First recovery boot: stale OTA from 2023-12-18 (in /cache/recovery/block.map) hijacked boot, applied 2.8 GB + 572 MB OTA, rebooted to Android. Firmware: 3.5 → same (OTA was already applied)
  • Cleared block.map + uncrypt_file. Second boot: ONYX logo only, no ADB after 45s

Diagnoses

  • Display: EPDC requires explicit ioctl calls to refresh — TWRP doesn’t issue them → frozen
  • ADB: Unknown root cause — USB init, adbd not starting, or early crash
  • Decision: Target headless TWRP (ADB only) first; display deferred to Phase 07

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