# 003 — Flash LAB (vanilla LOS only)

**LAB serial:** `11231JEC207477`  
**Never flash:** GOLDEN `11071JEC203839`

## Artifacts (this build)

Host: `/srv/rom/artifacts/003-vanilla/20260914-lineage-23.2-sunfish/`  
Laptop: `.local-artifacts/003-vanilla/20260914-lineage-23.2-sunfish/` (rsynced)

| File | Role | SHA-256 (prefix) |
|------|------|------------------|
| `lineage-23.2-20260914-UNOFFICIAL-sunfish.zip` | sideload ROM | `f89edfe1…5852` |
| `boot.img` | Lineage recovery (flash to `boot`) | `aaf52d20…aad1` |
| `dtbo.img` | required before recovery | `a400e6ae…6327` |
| `vbmeta.img` | copied for reference (wiki path uses dtbo+boot) | `b3223b5d…0735` |

Full digests: `SHA256SUMS` in the same directory. Metadata: `build-metadata.txt`.

## Owner decisions (2026-09-13)

- **Unlock / wipe LAB:** allowed when needed for first custom flash.
- **Stock factory on LAB:** not desired as a planned OS (rescue zip stays on
  disk for emergencies only).
- **Banking hard-gate focus:** **Yuh** (+ Swissquote); Revolut is **not** a
  hard-gate.
- Vanilla `003` only — no microG / KSU / GApps add-ons on first flash.

## Wiki note (firmware)

Upstream LOS install wiki asks for **stock Android 13** firmware before first
install. LAB currently runs custom A16 (iodé). For this project we flash
vanilla LOS over LAB as approved; if radio/modem misbehaves after smoke, use
`docs/002-lab-stock-rescue.md` then re-flash — **never GOLDEN**.

## Before every fastboot/adb command

```bash
adb devices -l
fastboot devices
# serial must be 11231JEC207477 only
```

```bash
ART="$HOME/Workspaces/sunfish-a16-rom/.local-artifacts/003-vanilla/20260914-lineage-23.2-sunfish"
cd "$ART"
sha256sum -c SHA256SUMS
```

## Unlock (first custom flash)

Unlocking **wipes** LAB — owner-approved.

```bash
adb -s 11231JEC207477 reboot bootloader
fastboot -s 11231JEC207477 devices
fastboot -s 11231JEC207477 flashing unlock   # confirm on device
```

## Flash (LOS wiki sunfish path)

```bash
cd "$ART"
fastboot -s 11231JEC207477 flash dtbo dtbo.img
fastboot -s 11231JEC207477 reboot bootloader
fastboot -s 11231JEC207477 flash boot boot.img
# device menu → Recovery
# Recovery → Factory reset → Format data
# Apply update → Apply from ADB
adb -s 11231JEC207477 sideload lineage-23.2-20260914-UNOFFICIAL-sunfish.zip
# Reboot system now (no GApps / no add-ons for vanilla 003)
```

Unofficial zip: recovery may warn about signature — expected; proceed only if
hashes match `SHA256SUMS`.

## After first boot

```bash
adb -s 11231JEC207477 shell getprop ro.lineage.version
adb -s 11231JEC207477 shell getprop ro.build.display.id
# expect lineage 23.2 / sunfish UNOFFICIAL — not AXP, not iodé
```

Then complete `docs/003-smoke-lab.md`.

## Failure

Use [`002-lab-stock-rescue.md`](002-lab-stock-rescue.md) only as **emergency**
brick recovery. Do not touch GOLDEN.