nematom @ 17.03.20, 23:54
it is on a separate loop
So about that and speech. Change would not hurt. Just the author, judging from the description, all the signs of breakage is a headphone jack. Determined by the experience of repairs such bugs. Now I tell how.
Theory: the connector design and scheme of its work. The fact is that in the current connectors, determining the position of "headphones are connected," performed by a flexible plate inside the jack, when sticking the plug.
But not all so simple. For this situation, the plate should press on the companion contact, i.e., open the audio output circuit to external speakers. When her wear or breakage or sticking hem plug, it becomes unusable and can not return to the position by default. Accordingly, the sound in the media will not be, as the phone said that the headphones are still in it. For the same reason, there is sound in the headphones and ringtones are played, for the sound of the call goes to the external speakers.
A display, there will be no. Because A: In some android smartphone can understand it in the headset or headphones and issue the corresponding icon; And B: In some windose not see the icon or it can occur, but only when you connect a headset. Scheme determining wired devices on smartphones, this is a separate story.
Interim conclusion: Change connector, taking into account that it is removable. The probability that it will work - is enormous.
With regard to the services and why the author has thought to get into such a jungle. It's simple. The author has no experience and no clue to know, respectively, and there as arranged. And the service, as if they do not dig so deep, more often. Not everyone can be remonterami.
That's because a comrade. Only personal experience. I hope he's someone come in handy and help.