1. Copy `<date>_<serialnumber>_sysnand_##.bin` and `essential.exefs` from the `/gm9/out/` folder on your SD card to a safe location on your computer
+ 建議備份至各個不同的地方(比如雲端硬碟中)
+ 這些備份檔案可於未來您磚機時用來修復系統檔案
1. Delete `<date>_<serialnumber>_sysnand_##.bin` and `<date>_<serialnumber>_sysnand_##.bin.sha` from the `/gm9/out/` folder on your SD card after copying it