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

Swap your USB cable immediately, switch to a USB 2.0 port instead of a USB 3.0 port, and restart the process from Step 2.

Official Sony Xperia XZ SO-01J (Docomo Japan) Stock Rom: A Complete Guide Official Sony Xperia XZ SO-01J -Docomo Japan- Stock Rom

The SO-01J did not receive Android 9 Pie or later officially. Swap your USB cable immediately, switch to a USB 2

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

For advanced users, here is a practical summary based on community findings.

Swap your USB cable immediately, switch to a USB 2.0 port instead of a USB 3.0 port, and restart the process from Step 2.

Official Sony Xperia XZ SO-01J (Docomo Japan) Stock Rom: A Complete Guide

The SO-01J did not receive Android 9 Pie or later officially.

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

For advanced users, here is a practical summary based on community findings.