Get your unlock key Go to Sony Developer World . Enter your IMEI (dial *#06# ). Wait for the unlock code.

adb reboot bootloader fastboot oem unlock 0x[YOUR_UNLOCK_CODE] fastboot reboot This will break FeliCa wallet functionality on Docomo Xperias. Backup your mobile wallet data first. Method B: Community Exploit Method (Sharp, Fujitsu, some LG Docomo models) For unsupported models, you often rely on XDA Developers forum threads. No universal method exists , but here is a generic approach using mtkclient for MediaTek-based Docomo phones (e.g., Fujitsu arrows series with MTK chips):

Install Python and mtkclient on Linux or Windows WSL. Step 2: Boot phone into BROM mode (usually hold Volume Down while connecting USB). Step 3: Run:

Check unlockability Dial *#*#7378423#*#* → Service Info → Configuration → Rooting Status. If Bootloader unlock allowed: Yes , proceed.

python mtk wl python mtk da seccfg unlock Reboot to fastboot and verify:

Introduction: Why Docomo Phones Are Different NTT Docomo is one of Japan’s largest mobile carriers, known for producing high-quality, feature-rich smartphones—often from brands like Samsung, Sharp, Fujitsu, Sony, and even certain Google Pixel models. However, for enthusiasts and power users, Docomo devices come with a notorious reputation: a locked bootloader .

This method is advanced and can permanently hard-brick your Docomo device if the wrong bootloader stage is overwritten. Method C: Pixel Docomo Edition – The Easiest Path Google Pixel devices sold by Docomo (e.g., Pixel 6a, Pixel 7 Pro) are similar to unlocked models, but the bootloader unlock is temporarily disabled for the first 72 hours after SIM insertion . After that: