Belkin RT3200/Linksys E8450 WiFi AX discussion

My bad, didn't noticed that first time :sweat_smile: Thanks to you and @shenghaoyang !
Now I have patched build, and two files:

  1. openwrt-mediatek-mt7622-linksys_e8450-ubi-preloader.bin goes to /dev/mtd0
  2. openwrt-mediatek-mt7622-linksys_e8450-ubi-bl31-uboot.fip goes to /dev/mtd1

What should go to /dev/mtd2 and /dev/mtd3? I only have my backup files from complete backup procedure. Are they good to go? Or I need to use some files from the build?