Official Sony Xperia Xz So-01j -docomo Japan- Stock Rom __top__ Jun 2026

Out of the box, the SO-01J ROM was heavy. It came pre-installed with:

The is the NTT Docomo Japan variant of Sony's 2016 flagship. The official stock ROM is primarily used to restore the device to its original factory state, fix software issues like bootloops, or remove custom modifications. Firmware Details & Compatibility Model Number: (exclusive to NTT Docomo Japan). Official Sony Xperia XZ SO-01J -Docomo Japan- Stock Rom

If a newer update causes performance issues or battery drain, the stock ROM allows users to roll back to a more stable previous version (e.g., from Oreo back to Nougat). Out of the box, the SO-01J ROM was heavy

Ships with Android 6.0 Marshmallow; upgradable to Android 8.0 Oreo Why You Need the Stock ROM Out of the box

adb shell getprop ro.build.fingerprint # Expected: Sony/SO-01J_.../SO-01J:8.0.0/...