For phones that place SIM tray at the top or at the bottom, it’s likely for users to stab the microphone hole or the secondary microphone instead of the SIM tray hole using the ejector tool. A simple google search reveals that the phenomenon is actually pretty common.

If you are reading this, its highly likely that you too accidentally pricked either of the microphone holes. But in doing so did you just puncture through your water resistance grid? Or did you just screw up your microphone hardware?

Who better than Jerry, the seasoned decimator of phones, to answer that.

While dissecting P30 Pro in his recent video, Jerry did answer the burning question.

“The answer is No. Pretty much every phone is built the same way. Microphone hole fits the ejector tool purely by coincidence. But the white impermeable layer (on microphone hardware) is to the side of the shaft and not directly in the end. No matter how deep you go, the tool won’t puncture any of the water resistance or poke the microphone hardware,” he said.

Phew! All is well, then.

In case, you haven’t watched the video already, Jerry also shows what Huawei’s periscope lens assembly for Zoom camera actually looks like on the inside. Pretty interesting stuff indeed!


  1. Good article – thanks. But what about the microphone at the top? Will it has the same “protective feature” like the one at the bottom if I accidentally inserted a pin into it?


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