The is the specific factory firmware designed for the Japanese variant of the Sony Xperia XZ . This specialized ROM ensures the device functions according to NTT Docomo’s carrier standards, including support for regional features like Felica (mobile payments) and Japan-exclusive bands. Core Technical Specifications
adb reboot bootloader fastboot oem device-info # (bootloader) Device unlocked: false -> will always say false. Official Sony Xperia XZ SO-01J -Docomo Japan- Stock Rom
Once "Flashing finished" appears, disconnect the phone. Power it on. The first boot takes up to 10 minutes. The is the specific factory firmware designed for