Thank you guys!
I managed to get the service running, but unfortunately it doesn’t work.
But the moment that i execute
echo 1 > /sys/devices/dsi_panel_driver/hbm_mode; sleep 0.1 ; echo 0 >/sys/devices/dsi_panel_driver/hbm_mode
it instantly fixes the issue until i turn of the screen! So i guess it is working but the above command doesn’t get executed?