INFINIX X559C(hot 5 ) don't display after screen replacement

hi

My phone: infinix x559c (hot 5) fail to display after screen replacement.

The initial(old) screen got spots yet it partially displays, on replacing with the new screnS, it don’t work.

After testing with the new screen, the old screen also no longer display at all again.

It see PC when connected via USB, vibrate when charged. Have tried several new screen and some other battery as well.

BUT IT DON’T DISPLAY AND WON’T RESPOND WHEN TRIED TO POWER ON WITH BATTERY.

KINDLY HELP, THANKS IN ADVANCE