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:
adb reboot bootloader fastboot flashing unlock Use volume keys to confirm. Then: docomo unlock bootloader install
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. Install Python and mtkclient on Linux or Windows WSL
Check unlockability Dial *#*#7378423#*#* → Service Info → Configuration → Rooting Status. If Bootloader unlock allowed: Yes , proceed. rooting the device
Fastboot unlock