Sony Xperia XZ (SO-01J)

The is a Docomo-exclusive variant released for the Japanese market. Flashing the stock ROM is a common solution for resolving issues like boot loops, soft bricks, or removing custom firmware to return the device to its factory state. Key Specifications for SO-01J Processor: Qualcomm Snapdragon 820. Memory: 32GB ROM and 3GB RAM. Display: 5.2-inch 1080p LCD.

✅ Why Flash the Official Stock ROM?

  1. Backup Data – Flashing stock ROM wipes all user data (photos, contacts, apps).
  2. Battery Level – Keep device charged above 60%.
  3. Drivers & Tools – You’ll need:

    Integrated Japanese Services:

    Features like Osaifu-Keitai (mobile wallet for FeliCa/NFC payments) are deeply integrated into the stock firmware.

    • The stock ROM is based on Android 6.0 (Marshmallow) and is upgradable to Android 7.1.1 (Nougat)
    • The device has a relatively small 3GB RAM, which might affect performance in heavy usage scenarios
    • The 32GB internal storage is expandable via microSD card slot
    • The device supports 4K video recording and playback

    SO-01J

    In the fast-moving world of smartphones, devices are often forgotten within six months of release. However, for enthusiasts and collectors, certain models stand as milestones. The Sony Xperia XZ (model number ), released exclusively in Japan via the carrier NTT Docomo, is one such device.

    Q:

    Will this remove SIM lock? A: No – stock ROM does not unlock carrier lock. Use a valid unlock code separately.

    Download firmware: