o3ds follow standard step to
****Reinsert your SD card into your 3DS then press Start to reboot
before that
1. RedNand (Luma) starts correctly (WITH ALL LUMA CHOICE AS NO)
2. no sysnand can start. can not open without SD
3. backup emu_nand to sys_nand (keep a9lh)
4. back al9h sysnand
5...