08/31/2026
Samsung A14: No Speaker Sound — Then Charging Stopped Too
This Samsung A14 came in with a fairly simple complaint: the phone was working normally, but the speaker suddenly had no sound.
At first, the issue appeared to be related to the charging sub-board. After replacing it, the speaker started working again.
However, the repair didn’t hold for long.
Shortly afterward, the speaker stopped working again — and charging stopped as well.
At that point, we knew the problem was deeper than the charging sub-board itself.
After reopening the phone and inspecting the connection more closely, we found that the main-board connector had been completely damaged, causing unstable contact between the motherboard and charging sub-board.
That explained why the phone could briefly recover after replacing the sub-board, then fail again.
After replacing the damaged connector:
* Speaker function returned to normal
* Charging returned to normal
* The intermittent issue was fully resolved
This is a good example of why phone repair is not always about replacing the part that seems most obvious.
Sometimes the visible symptom points in the right direction, but the real failure is somewhere along the connection path.
Accurate diagnosis matters just as much as the replacement itself.