It's a Koobe Slightbook HS Shine. I took the reader apart, on the big green pcb I can see the main chipset RK2818 next to the micro sd card slot there is a chip with a sticket which says: C62 V3 and a serial number. I made some pcs and
uploaded it my google drive. So the reader is indeed a Boyue C62 with some rebranding for the Hungarian market.