Chosen Solution
iPhone 6s Was working fine, only problem was the battery was not holding a charge. Replaced using kit from here, iFixit. Now only a frozen logo. What to do? Update (10/01/2019) Logo comes on when plugged in, then goes out. Does not come on when not plugged in.
Does the logo only appear when the charger is plugged in? If yes then it’s most likely a faulty replacement battery, which can be replaced under warranty from iFixit.
