Chosen Solution

Hi all, I did a lightning port replace ( i did it many times before) but now i have a strange problem. I replaced the lightning port module like before, when i tried to power on the iphone, i get an red battery icon. so i charged it.. but after 2 hours the phone was still dead. when i plugged in the cable , that icon dissapeared and only the red battery was shown. i tried another battery : i got the apple logo boot loop. tried to reset with holding the power button and.. but did’nt get me an solution. i could reset the iphone with itunes… but the battery was still on 2 procent, i see the charging icon, but the battery is not charging … ( and the battery percentage is above the 40 procent in another iphone.) i tried another module ( lightning) and i get the apple logo boot loop again… tried with software as well : 3 u tools and ireboot no solution there… someone with the same problem or advise?

sounds like the tristar ic needs replaced on the actual board