手机备份工具(RazrBootstrap.apk)

下载RazrBootstrap.apk，复制到内存卡安装。安装成功后打开 点击 Bootstrap Reacovery 按钮 权限提示出来点击运行后出现 SUCCESS！表示成功。在点击 REBOOT RECOVERY 手机会自动重启到RECOVER!.

安装RazrBootstrap.apk 然后打开Razr Bootstrapper 执行Bootstrap Recovery 显示Success 确定后按Reboot Recovery.

重启手机，进入到Recovery界面。循序执行：

1.wipe data/factory reset - Yes -- delete all user data
2.wipe cache partition - Yes -- Wipe Cache
3.backup and restore - Advanced Restore - XT910_CN - Restore system - Yes - Restore system
4reboot system now

6.然后重启后就大功告成了。