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备份恢复

点击维修进入服务菜单

选择

Utilitise>System State-USB >All>Save>yes

 image.png

等待提示

等待出现提示 

Save/Restore System State : Completed Successfully

备份完成

点击Cancel》image.png

点击Cancel>Dismiss

拔出U盘,service_mod_data备份文件夹