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Why Does OEM Unlocking Crash on iodeOS and How Can You Force a Bootloader Unlock?

Is Your Pixel Stuck? How to Fix the Greyed Out OEM Unlock on iodeOS Without a Reset

Troubleshooting iodeOS: How to Force Unlock the Bootloader When Settings Crash

If you have installed the latest iodeOS build based on Android 16 on your Google Pixel, you may encounter a critical issue. iodeOS is a privacy-centric ROM that supports Verified Boot, allowing users to relock the bootloader for enhanced security. However, relocking the bootloader on a custom ROM carries significant risk. If the system fails to boot, a locked bootloader prevents you from flashing stock firmware to unbrick the device.

To mitigate this risk, we typically advise users to keep the OEM Unlocking toggle enabled in Developer Options. This ensures that if the OS becomes unstable, you can immediately unlock the bootloader via Fastboot and recover the device.

However, a specific bug in the latest iodeOS build creates a dangerous loop: after flashing the ROM and relocking the bootloader, attempting to enable OEM Unlocking causes the Settings app to crash instantly. This guide explains why this happens and provides a tested workaround to unlock your bootloader even when the UI fails.

The Root Cause: Factory Reset Protection (FRP)

When the Settings menu crashes upon tapping OEM Unlocking, it is not a random glitch. Analyzing the system logs (adb logcat) reveals a specific security exception:

java.lang.SecurityException: FRP is active

This error occurs because a Google account was logged in on the device before or during the flashing process. The system triggers Factory Reset Protection (FRP), which locks down critical security settings to prevent unauthorized changes. Even adding the Google account back via microG settings often fails to resolve this conflict immediately.

In a standard scenario, you might wait for a software patch. However, if you need immediate access to your bootloader, waiting is not an option.

The Solution: Bypassing the UI Glitch

The crash occurs in the user interface (the Settings app), not necessarily in the bootloader backend. While the toggle appears inaccessible or causes a crash, the actual unlock permission might still be active or bypassable in Fastboot Mode.

We have confirmed that you can often bypass the broken toggle by executing the unlock command directly.

Step-by-Step Guide to Force Unlock the Bootloader

Warning: Unlocking the bootloader will wipe all data on your device. Ensure you have backed up your internal storage before proceeding.

Step 1: Boot into Fastboot Mode

Connect your Pixel to your PC and restart the device. Hold the Volume Down and Power buttons simultaneously until you see the Fastboot screen (indicated by the Android robot with an open panel).

Step 2: Verify Device Connection

Open your command terminal (CMD or PowerShell) on your PC and run: fastboot devices

Ensure your device serial number appears in the list.

Step 3: Execute the Unlock Command

Even if you could not enable the toggle in the OS, run the following command: fastboot flashing unlock

Step 4: Confirm on Device

If the backend permission is active, your phone will display a confirmation screen.

  1. Use the Volume Keys to select “Unlock the Bootloader“.
  2. Press the Power Button to confirm.

Why This Works

The crash you experience in the OS is likely a frontend error caused by the FRP check failing within the Settings app code. The underlying value that the bootloader checks (get_unlock_ability) may remain set to 1 (allowed) from your previous session, or the ROM’s default state may permit unlocking despite the UI error.

By sending the command directly via Fastboot, you bypass the crashing Settings menu entirely and communicate directly with the bootloader.

Final Recommendation

If you successfully unlock your device using this method, we recommend leaving the bootloader unlocked until iodeOS releases a stable patch for the OEM Unlocking crash. Running a custom ROM with a locked bootloader without a functional OEM Unlock toggle is a high-risk configuration that can lead to a permanent brick.