[quote=87107]So I tested with a different PSU and USB cable, (i use 220v to USB and then a cable) But the problem remains.[/quote]

Not sure what you mean here. Have you actually tried a different wall wart completely? The part that actually converts AC wall voltage to 5VDC? If so, then I would try a different Pi next in the list of troubleshooting steps. If that’s not feasible, try a different display, but that is a long shot