Hold down the buttons simultaneously and connect the phone to your PC.
Always download tools from official app stores or reputable forums like XDA Developers to avoid malware.
If your specific model is confirmed to support bootloader unlocking (or you are using a third-party exploit tool), you must prepare your computer environment. Prepare Your Computer docomo unlock bootloader install
Under "Rooting status," if it says Bootloader unlock allowed: No , standard official methods will not work. You will need to rely on paid, third-party software exploits (such as qUnlock or specialized EDL tools) to force the flag to "Yes." Samsung Galaxy (Docomo Variants)
Turn off your device. Hold the specific hardware key combination (usually or Power + Volume Up ) until the TWRP splash screen appears. Step 3: Wipe the Stock Docomo OS Hold down the buttons simultaneously and connect the
Open your phone dialer, type *#*#7378423#*#* to enter the Service Menu. Go to Service info > Configuration .
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. Prepare Your Computer Under "Rooting status," if it
Connect your phone in (usually hold Volume Up while plugging in USB).
You will lose Widevine L1 (restricting Netflix to SD) and specialized camera algorithms on certain brands like Sony.
Docomo Galaxy devices (e.g., SC-02K, SC-03L) feature locked bootloaders managed by the carrier's firmware configuration.