Sony Xperia XZ SO-01J is a Japan-exclusive variant released through the carrier NTT Docomo
The Stock ROM was a layered cake. The base was Sony’s sleek, near-stock Android interface (UX), characterized by subtle animations and the beautiful X-Reality display engine. However, Docomo plastered their own layer on top of it. Official Sony Xperia XZ SO-01J -Docomo Japan- Stock Rom
| Feature | SO-01J (Docomo) | Global F8331 | | :--- | :--- | :--- | | Model Number | SO-01J | F8331 / F8332 | | Bootloader Unlock | Officially NOT allowed (Docomo policy) | Allowed (via Sony site) | | Firmware Features | Osaifu-Keitai (Felica), Docomo bloatware | Sony AOSP/stock features | | Latest Android | Android 8.0 (Oreo) | Android 8.0 (Oreo) | | Baseband/Modem | Japan-specific LTE bands | International bands | Sony Xperia XZ SO-01J is a Japan-exclusive variant
The official .ftf firmware file is essential for several critical maintenance tasks: Android Version: 6