Get your unlock key Go to Sony Developer World . Enter your IMEI (dial *#06# ). Wait for the unlock code.
Check unlockability Dial *#*#7378423#*#* → Service Info → Configuration → Rooting Status. If Bootloader unlock allowed: Yes , proceed. docomo unlock bootloader install
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: Get your unlock key Go to Sony Developer World
Unlike international unlocked models, most Docomo-branded phones arrive with a bootloader that is cryptographically sealed. This prevents users from installing custom recoveries (like TWRP), rooting the device, or flashing custom ROMs. But where there’s a will—and a bit of technical know-how—there’s a way. rooting the device