I. Preparations before Sony Xperia Z Ultra/XL39h fl root package:
1: Download the root package
2: ensure that the mobile phone can connect to the computer with the usb data cable
3: The mobile phone must first be rediscovered by a third party.
2: Sony Xperia Z Ultra/XL39h starts to fl the root package:
1: Copy the package to the root directory of the SD card of the mobile phone.
2, in this case, remember to press volume + until the screen enters recovery mode .)
3: on the recovery main interface, press the volume key to select install and then select choose zip from sdcard. Then, find the root package in zip format copied to the root directory of the mobile phone SD card, then select "Yes-install Root-SuperSU-V2.46.zip" and press the power button to confirm
4: After the root package is flushed in, return to the recovery main interface and select Reboot system now]
5: root finished