[Strictly_anonymous]

Help here pls I need a working twrp image for tecno spark 4 kc8 running on android 10, kernel 4.9.190+ ?????

[X3non]

Help here pls I need a working twrp image for tecno spark 4 kc8 running on android 10, kernel 4.9.190+ ?????

for one, you most likely need to disable recovery-from-boot.p from within /system partition (a custom gsi should help with this)
secondly, you'd best need to wait for an update twrp version v3.5, even if the current one does boot, you won't be able to use it for any thing useful as mounting system e.t.c is not supported