Docomo Unlock Bootloader Install Jun 2026

Type fastboot devices to ensure your phone is detected.

Before attempting any software modifications, you must check if your specific device is even eligible for an unlock. Most Docomo-branded Sony Xperia models, for instance, are hardcoded with a restriction that prevents bootloader unlocking regardless of whether you have an official code. Open your device's dialer. Enter the code: *#*#7378423#*#* . Navigate to Service info > Configuration > Rooting Status . Look for Bootloader unlock allowed . Yes: You can proceed with standard unlocking steps. No: The bootloader is permanently locked by the carrier. Standard Unlocking Procedure (If "Yes") docomo unlock bootloader install

Wipe data in TWRP and "Install" your chosen .zip (e.g., LineageOS). 💡 Key Takeaways Warranty: Unlocking voids your warranty instantly. Type fastboot devices to ensure your phone is detected

Post-install fixes

Unlocking the bootloader almost always voids the manufacturer's warranty. Some Docomo devices display a "Warranty Void" warning on boot permanently. Open your device's dialer