While you can remove it, you might lose specific Japanese carrier features (e.g., Osaifu-Keitai). Step 1: Prepare Your DoCoMo Phone
Your Docomo Xperia is now unlocked. You can install TWRP (Team Win Recovery Project) using: docomo unlock bootloader install
Only a handful of Docomo devices support official bootloader unlocking: While you can remove it, you might lose
