Any knowledgeable electronics repair shop should be able to pretty quickly determine the source of the issue by observing if the phone draws any current with an ammeter, dry-fitting a new charging port and new battery, and observing the response through the ammeter.
A bad tristar might still result in the phone drawing current, but won't allow the battery to charge. To be certain, a known working battery might be dry-fit onto the phone and if the phone still won't charge the new battery, then a tristar repair is indicated.Read More
Having a phone that won’t charge or turn on is one thing, but knowing that there’s a chip inside that’s damaged and preventing it from turning on is an entirely different frustration. But, knowing is half the battle, both when it comes to the cables being used and the steps needed to fix it. Did you ever suffer from an iPhone that wouldn’t turn on, or charge over 1%?Read More