Apple MacBook Pro A2338 water damage computer no booting repair

Apple MacBook Pro A2338 water damage computer no booting repair

Machine model: Apple MacBook Pro A2338 notebook

Fault phenomenon: computer no booting

Maintenance process:

Received a Apple MacBook Pro A2338 fault machine, the customer described the notebook water damage, the computer no booting.

Apple MacBook Pro A2338 water damage computer no booting repair Figure 1.

After getting the machine, dismantle the machine. The water damage machine takes out the main board, and processes water damage first. It is found that the M1 chipset water damage.

Apple Macbook Pro A2338 water damage computer no booting repair Figure 2.

The inquiry of 3.8V U5700 corrode is serious, and the 8th pin(PPbus _ vmain _ vin _ isns) of the removed chip is burnt out.

Apple Macbook Pro A2338 water damage Computer no booting repair Figure 3.

PAD was replaced with another chip, but no booting still found that 3.8V didn’t get up. After a test, P3V8AON_PWR_EN was disconnected. R5710 corrode-pin

Apple Macbook Pro A2338 water damage Computer no booting repair Figure 4.

According to Boardview, find a point on the edge of the charging chip, fly a long line, power on, start the machine perfectly, troubleshoot, and the maintenance is over.