Install Sony Xperia XZ Drivers on your PC.
Download and install the latest version of on your PC.
Click the button at the bottom of the FlashTool interface. The software will begin analyzing the firmware script and pushing the system files into your device. Do not touch, move, or disconnect the USB cable during this phase. Step 6: Final Reboot Official Sony Xperia XZ SO-01J -Docomo Japan- Stock Rom
Because the SO-01J is a Japanese-market device, flashing the stock ROM might:
Step-by-Step Installation Guide Using Xperia工具 (FlashTool) Install Sony Xperia XZ Drivers on your PC
A source folder window will appear. Select the firmware you just downloaded.
Resolve issues where the phone gets stuck on the Sony or Docomo logo. The software will begin analyzing the firmware script
This guide provides an overview of the for the Sony Xperia XZ (SO-01J) , the carrier-branded variant for NTT Docomo (Japan) .