Samsung Galaxy A15 (A156A156) Repair Charging Controller Replacement

🛠 Difficulty: 🟢🟡⚪️

⏰ Repair time: ~45 minutes

A Samsung Galaxy A15 came in for repair — a relatively new and popular model at the moment.

The phone simply shut off while charging and hasn't shown any signs of life since 😊

We disassemble the device and inspect the main board.

Everything looks fine visually — no mechanical damage, no signs of liquid exposure.

We hook the motherboard up to a lab power supply and observe idle current draw at around 0.2A.

At the same time, there's noticeable heat coming from the back side of the board — highlighted in red on inspection.

We peel back the metal shield covering the area.

We identify the heating component as the charging controller IC — SM5714A.

At minimum, the chip will need to be replaced.

We carefully cut out a small section of the metal shield to make the replacement easier.

We prep a new charging controller and perform the replacement.

After installation, we test the board on the lab supply: no more idle current draw, and the board now responds normally to the power button.

We place the board back into the housing for a full test.

Charging is now functioning normally, and the phone powers on.

We check all other phone functions and reassemble the device completely 😊 Repair successful.