Chosen Solution
when i connect the charger the screen tells that the phone is charged 100% i press the power button and goes into bootloop if i don’t plug it won’t show life i tried to change battery - no power i tried to change charging port - no power i tried to remove all the connectors of the camera microphones and the bottom sensors and to power it only with lcd and battery again no luck i thing i broke it because i tried to change the main camera and i forgot to remove the plastic part from the motherboard and the motherboard was band at first it worked for about 20 minutes and turned off and i got this problem now but the motherboard doesn’t look damaged
i heated the top of the motherboard near the battery connector with a heat gun at 350C and now is good but i know it won’t last 1 day or 2 and i will have that problem again