In > System > Developer Options , enable USB Debugging and OEM Unlocking .
Lock and unlock the bootloader | Android Open Source Project
Once the device enters the bootloader screen, run the primary unlocking command: fastboot flashing unlock Use code with caution.
The SE bootloader unlocking and relocking process is a specific method for SE devices, including the 167Z model. This process involves: se bootloader unlocking relocking 167z verified
Ensure that the secure boot parameters display standard factory partition paths. Step 2: Lock the Core Bootloader
. You must agree to the disclaimer and submit your application to the manufacturer's servers.
You have a custom recovery (TWRP) or root. Fix: Flash stock boot, system, and vbmeta images before relocking. In > System > Developer Options , enable
Unlocking and relocking the bootloader on older Sony Ericsson (SE) and legacy Xperia smartphones—specifically those built on the —requires specific service tools and execution steps. Modern Android devices rely on standard fastboot commands. However, vintage SE devices with chipsets from the 2011–2013 era rely on Testpoint manipulation or specialized service software to modify the bootloader status.
The device will wipe all data and reboot. The bootloader status will now show:
If you try to unlock the bootloader on a device running this version, the device will: This process involves: Ensure that the secure boot
Here’s what that means for the unlocking and relocking process:
For standard Android Open Source Project (AOSP) targets, use the primary fastboot flashing commands: fastboot flashing unlock Use code with caution.
Relocking the bootloader is often attempted to restore a device to its "out-of-the-box" state or to pass security checks. However, this is the most hazardous phase of device modification. The "Brick" Risk : Relocking must only be done if the device is running 100% stock, untouched firmware
: Replace the stock operating system with community-driven versions like Obtain Root Access
A complete backup of all personal data, as the device will factory reset. Step 1: Enable Developer Configurations Open the device and navigate to About Phone .