Rom: Official Sony Xperia Xz So-01j -docomo Japan- Stock

Will flashing this ROM unlock my SIM card to work on other networks?

The for this device refers to the original firmware signed by Sony and customized by Docomo, required for restoring the device to its factory state, repairing soft bricks, or unrooting.

: Flashing will erase all internal storage. Back up your photos, contacts, and messages.

Move your downloaded .ftf file to the C:\Users\YourUsername\.flashTool\firmwares directory. Open FlashTool, click the , choose Flashmode , and select your Official Sony Xperia XZ SO-01J -Docomo Japan- Stock Rom

If you flashed a global ROM on a Docomo device, you may lose NFC/FeliCa functionality. Always use the SO-01J labeled ROM. If you'd like, I can:

If you prefer a safer, official method to restore your software (without rooting or flashing custom files), use Sony’s official software. Download and install Xperia Companion on your PC. Open the application and select .

Eliminate system instability, app crashes, or excessive battery drain. 1. Prerequisites and Preparations Will flashing this ROM unlock my SIM card

Which (e.g., Nougat, Oreo) are you looking to install? Share public link

: Ensure your Xperia XZ has at least 50% charge to prevent it from shutting down mid-process.

Only JTAG/service center can recover – due to locked secure boot. Back up your photos, contacts, and messages

⚠️ Flashing will erase all user data (photos, contacts, apps, etc.). Always perform a full backup before proceeding.

Ensure your Xperia XZ has at least 50% battery capacity to prevent it from shutting down mid-flash.