5G Glory 50 mobile phone enters the water without service repair

5G Glory 50 mobile phone enters the water without service repair

Focus on the inspection of the periphery of the 4G power amplifier chip. After careful observation, it is found that there are corrosion marks around a chip on the right side of the 4G chip, and there is a small amount of electrolyte. Redo this chip.

Machine model: Glory 50

Fault phenomenon: no service when the mobile phone enters the water.

Maintenance process:

One enters the 5G Glory 50, and the mobile phone shows no service after entering the water. The water inlet machine first checks the corrosion of the power supply pin of the power amplifier.

5G Glory 50 mobile phone enters the water without service maintenance Figure 1

Dismantling the machine, it was found that the power amplifier chip in the lower right corner had corrosion traces. When the chip was removed, the foot was disconnected.

5G glory 50 mobile phone water without service maintenance Figure 2

5G glory 50 mobile phone water without service maintenance Figure 3

Flying line

5G glory 50 mobile phone water without service maintenance Figure 4

There is no 4G signal after booting, but there is 5G signal.

5G glory 50 mobile phone water without service maintenance Figure 5

Focus on the inspection of the periphery of the 4G power amplifier chip. After careful observation, it is found that there are corrosion marks around a chip on the right side of the 4G chip, and there is a small amount of electrolyte. Redo this chip.

5G glory 50 mobile phone water without service maintenance Figure 6

5G glory 50 mobile phone water without service maintenance Figure 7

Boot test, perfect repair.

5G glory 50 mobile phone water without service maintenance Figure 8