The phone was slightly flooded, everything works in it, but the range is tragic. 1 dash is max on LTE, the same on 3G, on 2G the range is max, sometimes half, in other places the range is lost. I watered the systems with flux and burned them out, downloaded the screen marked in the photo and...

What you marked is responsible for GPS and partly WiFi (quartz), RF amplifiers and filters are under the screen closest to the vibration, the RF Chip is under the screen next to the battery connector.

So the systems marked in yellow are responsible for the range. The elements marked in red have been replaced and no effect. Then I desoldered them and checked the transitions to the nearest element - and everything looks fine, no path has corroded .. Honestly, I have no ideas what to look at. Maybe someone else will suggest?

Huawei P8 Lite - After a light flood, it works, but there is almost no coverage

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#1 16551618 26 Jun 2017 11:25

Fu-Fu Fu-Fu

Level 22

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Post #1
16551618 26 Jun 2017 11:25

The phone was slightly flooded, everything works in it, but the range is tragic.

1 dash is max on LTE, the same on 3G, on 2G the range is max, sometimes half, in other places the range is lost.

I watered the systems with flux and burned them out, downloaded the screen marked in the photo and mampytan are these elements responsible for the range?

I have P8 lite for parts and maybe something can be soldered.
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#2 16553233 26 Jun 2017 22:51

plustek plustek

Level 31

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Post #2
16553233 26 Jun 2017 22:51

What you marked is responsible for GPS and partly WiFi (quartz), RF amplifiers and filters are under the screen closest to the vibration, the RF Chip is under the screen next to the battery connector.
#3 16554281 27 Jun 2017 15:58

Fu-Fu Fu-Fu

Level 22

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Post #3
16554281 27 Jun 2017 15:58

So the systems marked in yellow are responsible for the range.

The elements marked in red have been replaced and no effect.

Then I desoldered them and checked the transitions to the nearest element - and everything looks fine, no path has corroded ..

Honestly, I have no ideas what to look at. Maybe someone else will suggest?
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Huawei P8 Lite - After a light flood, it works, but there is almost no coverage

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