Why I don't get sound from speaker or headphone jack?

Hello,

Can someone halp me with me problem i have with samsung galaxy tab a.

There is no sound what so ever from the speaker but if i plug my earphones and put it on max volume I can hear it just alittle bit to veryfy its playing.

Tried to do factory reset, open my device to see if some chips went bad and even replaces the speaker connecting bord with the jack. It didnt helped as well.

Any one have an ideas?