A lightweight Android utility that inspects your device's bootloader status using low-level system properties — no root, no ADB, fully offline.
| Property | Description |
|---|---|
ro.boot.verifiedbootstate |
The most reliable signal — set directly by the bootloader at boot |
ro.boot.flash.locked |
Raw lock flag: 1 = locked, 0 = unlocked |
ro.oem_unlock_supported |
Whether the device supports OEM unlocking at all |
ro.secureboot.lockstate |
Secure boot state reported by some OEMs |
- 🔒 LOCKED — Bootloader is locked, verified boot chain is intact
- 🔓 UNLOCKED — Bootloader has been unlocked
- ❓ UNCERTAIN — Device OEM does not expose standard bootloader properties
⚠️ ERROR — System properties could not be read
Bootloader reads Android system properties via reflection using android.os.SystemProperties. No special permissions, no root access, and no network connection required. Results are displayed instantly on launch.
- Android 9 (API 29) and above
- Works on most Android OEMs following AOSP standards
- Results may vary on Samsung (Knox) and some Xiaomi (HyperOS) devices
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v1.0.0