Enable root or make sure you have root access. You can obtain root using KingRoot app also.
#首先root你的手机,具体方法不表。
Download and copy the attached global.sh script to root directory.
#下载脚本到根目录
Also, download update.zip file and copy to root directory.
#下载升级包到根目录
Search in google and download any Android Shell Terminal Emulator and install. Launch Android Shell Terminal Emulator and input following commands: su #下载命令行工具 我用的是ConnectBot,进入命令行 输入 su 之后回车 (wait till $ sign changes to #. If it doesn’t change, then you don’t have root access) 如果你没有看到路径符改变为#,表示你没有root权限,请root你的手机。 sh /sdcard/global.sh #再输入上述命令
The script will backup old phone id and will replace by new id and then it will reboot automatically.
#此脚本会把你的手机ID更改为国际版ID并重启。
Upon reboot it will go to Recovery mode. In the recovery mode, you MUST select both System Update and Clear Data, and proceed.
#重启后会进入recovery模式,手动选择你刚才放到根目录的升级包进行升级并清除数据。
Wait until the update completes and you will have international firmware installed.