Contribution d'origine par : Gregory Harris ,
Did you completely reassemble the phone before trying to charge and power it on? With previous Galaxy S series phone generations I can and often do test the phones before reassembling the midframe. But I found that with the S8 and probably likewise with the S8+ that you need to fully assemble the phone first. On one of my first S8 repairs I found that without the midframe on I got an error that looked to be like the battery thermostat triangle error experienced in previous models. But when I put the midframe on, the problem was resolved. Apparently, some contacts must be made to complete a circuit. Hopefully, that is all that you are experiencing in your situation.