Based on the context of the keywords (specifically "167z" and "SE"), this topic refers to the (model number G8441, often associated with the customization number "167z" in service menus) and the process of managing its bootloader state.
Your phone should now reboot and show the fastboot screen. On some phones, you can also access this mode by holding a specific key combination (like Volume Down + Power) while turning on the device.
or similar models (often referred to as "167z verified" or involving the "Deep Test" program) follows a strict sequence to ensure the device maintains Verified Boot status and does not become "destroyed" during the process. Unlocking the Bootloader (Deep Testing)
Open a command prompt in your platform-tools folder and enter: fastboot oem unlock 0x[YOUR_UNLOCK_CODE] (replace with your actual code). Relocking the Bootloader se bootloader unlocking relocking 167z verified
The "SE Bootloader Unlocking Relocking" is a specific utility often associated with unlocking the bootloader on older Sony Xperia devices and, according to some sources, even on devices with Skylake CPUs. It's a community-developed tool designed to simplify the process of both unlocking and later relocking the bootloader on compatible devices.
Using modified unlock tools violates the in the US (anti-circumvention provisions) and similar laws in the EU. However, enforcement against individual users is rare. Manufacturers may blacklist your device's IMEI from future updates.
If you get an error like "Flashing lock is not allowed," your device detects non-stock partitions. You must re-flash the exact firmware that matches the bootloader’s anti-rollback counter. Using a newer or older ROM will cause a (device completely dead). Based on the context of the keywords (specifically
To master your device, you must first understand the fundamental pieces of the puzzle.
This process uses the standard Samsung "Download Mode" to unlock the bootloader in 2026.
Many users unlock to install a custom ROM, then want to relock for OTA updates or security. Relocking an SE bootloader with a "167z verified" status is dangerous unless you are 100% stock. or similar models (often referred to as "167z
Download the latest revision of Android Platform Tools to guarantee command compatibility.
However, this freedom comes with trade-offs. It effectively voids the device's warranty and can expose the device to higher security risks, as an unlocked bootloader does not verify the integrity of the OS before booting.
: After relocking, you may need to open the Deep Testing app again and select "Apply to exit in-depth test" to return the device to its standard software state. Risks and Verification System Destroyed