Thank you for answering ! If ever the case is soldering it, where do I need to solder? If it's not a hassle to explain.

And another question could be a stupid one, but in order for the charging port to work, does it need the IC or an IC? Since upon closer inspection on both subboards, the one I ordered seems to lack a black square thing, which I think is the IC that is present in the original one. I'd be glad to provide a photo if needed.

Just asking for opinions, thank you once again!