Samsung J4+ reboot loop

[Nameless]

My Samsung is on reboot loop after software update. Phone is stuck as reboot more than 8 times and doesn't stop already tried factory reset but it doesn't  work.

Maybe the cause is #Reboot Recovery cause is check_boot_mode reboot recovery with key#

[Anonymous User]

You need to take it to the assistance and need the samsung engineer to reflash all the software