[Humdan]

So I was recently trying my phone to get root access I already unlocked the bootloader but I couldn't get the current version boot.img and vbmeta so I tried to roll back with sp tools and that made my phone to boot till logo and then reboot into fastboot tried 2 3 times to flash the firmware again but no luck then I tried to format the phone and when I did that Imy phone completely gone dead then when I tried to flash the firmware again it would give me secure boot error on one of the files so what do I suppose to do now?

[Abdulakeem14]

So I was recently trying my phone to get root access I already unlocked the bootloader but I couldn't get the current version boot.img and vbmeta so I tried to roll back with sp tools and that made my phone to boot till logo and then reboot into fastboot tried 2 3 times to flash the firmware again but no luck then I tried to format the phone and when I did that Imy phone completely gone dead then when I tried to flash the firmware again it would give me secure boot error on one of the files so what do I suppose to do now?

you could have just taken a firmware backup using wwr tool.
What firmware build was the phone on before flashing with sp flashtool?