Unlocking the bootloader on NTT Docomo devices is generally restricted by the carrier, preventing the installation of custom ROMs or recoveries like TWRP. While Docomo offers a streamlined process for SIM unlocking
Open Command Prompt or Terminal on your PC. docomo unlock bootloader install
fastboot oem unlock 0x<YOUR_KEY>
fastboot oem unlock or fastboot flashing unlockCan't unlock the Sony Xperia 10 iii, bootloader unlock says "No" Unlocking the bootloader on NTT Docomo devices is
Not every Docomo phone can be bootloader unlocked. Carriers in Japan (Docomo, AU, SoftBank) have historically locked bootloaders tighter than international models. Confirm unlock; factory reset will occur