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Device and repair guides for the Huawei P30 smartphone. Flagship smartphone from Huawei released March 2019, featuring a 6.1" OLED screen and an in-display fingerprint sensor.

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What are these for on the mainboard?

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Hey all. Do you know what the things are marked in red? The function of them. Also the one I marked in Green, it is not connected to anything (on the PCB bracket) Why is it there? Anybody knows?

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@ruggb - that is the weird part. They do not connect to anything (contact connections) They touch the plastic bracket, that does not have any metal points. It is like it was made for some extra.

the UFL SMT Antenne is down in the right corner for 2 antennas

It got me curious, because they do not connect to anything, the ones I marked


it is possible it is a common board used in other phones. Many mfg do that. sometime with parts populated for different features.


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the green on appears like contact connections maybe for a speaker. The red ones look like uFL SMT Antenna Connectors. But I have no idea why there are 6 of them.

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