deezee @ 13.04.19, 15:55
killed SYSTEM, RCOVERY, USERDATA
If hanging on the splash screen, then the problem or see not boot, or system, userdata may be, but it is unlikely. To begin, make a reset to the factory through recovery. If you do not help, then rewrite. You can either complete drain to flash with sd-card, or install TWRP and through it flash only boot and system.