How to clean earpiece - Redmi K20 / Xiaomi Mi 9T Questions & Answers

As mentioned above, do you guys have any suggestion on how to clean the earpiece, it accumulated a lot of dust, but it's very narrow and seems tricky to clean...

try an artist paint brush.

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Crunched the faceplate - now the speaker is REALLY scratchy - anybody do repairs?

I did a REALLY a stupid thing this weekend. I had the trunk of my wife's car up and had no pockets, so I put the phone on the edge of the trunk and put everything else in the trunk. I swung the lid down and it bounced back up.
I had no idea what was keeping the trunk from closing until I saw my phone sitting there. Thankfully, the trunk's on a Toyota Echo, so it didn't crush the phone, but it did dent the faceplate right where the speaker and email/browser button is.
Now calls are really scratchy and crackling, so I'm guessing that I have a partial connection to the speaker or crunched it well enough to kill it.
While it's useable, it makes it hard to use - is there anyone on the forums that does repairs?
kcfried said:
While it's useable, it makes it hard to use - is there anyone on the forums that does repairs?
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How about you!!??
All the info you need is here.
Mike
I know this thread is a bit old, but I just fixed the same problem with my Hermes.
Find a good disassembly guide and pull the beast apart, when you get to the speaker, it will be caved in/crushed.
There are two clips on either of the long sides, unclip them and carefully lift the metal bit off a little way, get a small jewelers flat head screwdriver and push the dints out, being very careful of the delicate wires.
Or you could just find a new speaker
EDIT: While you're at it, bend the speaker contacts out a bit too just in case they were squashed, also to get better contact.

Headphone jack issues? try this!

So my g2 has a couple of chips and scratches, but thats okay given the things its been through, and idk, it gives it more of a personal kinda feel. I cant explain. But recently, my headphone jack began to stop detecting earphones at random intervals, and it was becoming a pain.
So i decided to pop off our "non removeable" but totally removeable back plate, and have a look. Its easily done by removing the sim tray and using a guitar pick or pry tool.
I saw the headphone jack in the corner, grabbed a small implement and cleaned it a little, and then put some double sided tape over it, making sure it touches no metal, and some more in other places to stop that annoying creeking my phone sometimes does.
Put it all together, and voila! I dont know why this worked, it just did and i thought id post it here in case it works for others.
I think its because when i walk the pressure against my headphone jack pushes the port against the back of the phone slightly, and angling the jack. The tape, if this is the case, holds it all together, and reduces creeking
Like i said, might just be a one off, but it worked so i thought id tell you guys, if it turns out it was just me this works for ill have the thread removed.
Thanks for reading!
I don't post much but I googled this issue yesterday and tried your solution and it worked! Just wanted to log in and thank you!

Clear the fron speaker

Hello, i realised that my fron speaker is full of dust , very dry dust.
I tried to clean it with a very thin brush but no succes.the holes ar very small.
I tried with a wet towels but no succes as well.
Its very frustrating for me, i dont wanna desassambly the phone ,i want a solution , a tool suggestion..something...
Dont say something like vacuum cleaner coz it will sure breake the speaker.
Have you thought of using something sticky like Blu Tack?

How to clear dirt in speakers

does anyone have a suggestion on how to clean speakers? dirt easily goes into them
I think washing it with water might be an idea(the phone is water proof and i tested it before), but I need a better idea than water!!
I used a soft toothbrush, works for me.
You could use cotton sticks - (I do not know how they are called in english, they are used to clean your ears)

PIXEL 2 XL Speaker Buzz/Rattle Issue Possible Fix

Here is what I did to reduce the buzzing sound of my Pixel 2 xl bottom speaker.
First I know the buzzing sound is caused by the bad adhesion of the grill.
So I downloaded the app "Frequency Generator" (any app that can make the phone play sound in specific frequency will work). The I turn the volume to 100%, and toggle the frequency bar in the app to find out on which frequency the buzzing is most serious. (I found it's around 500Hz to 1000Hz, but it doesn't matter) Then you use a toothpic to gently press on the grill to see if the buzzing sound reduce. (WARNING: This action may make your phone NOT water proof anymore! Do it at your own risk!)
When I found out the location where I apply pressure can reduce the buzzing. I try harder to slide the grill left and right or up and down.(Again! WARNING! You may damage your phone!) Then I use the toothpic to hold the grill in the position where the buzzing is minimal, then apply heat by hair dryer or hot air gun. In order to soften the grill adhesive to relocate the grill to the less buzzing location.
I've tried this process 3 to 4 times and now my phone buzzing sound is not noticeable even in 100% volume. But I still feel some buzzing sound somethime I don't know if it is a feeling only, or it's really happening.
Anyway, I am now satisfy with my speaker.
After fixing this I am not confident to put my phone in water again, cause I dunno if the water proof it done by the grill or the speaker itself, if it done by the grill then the fix I mentioned will really ruined the water proof.
But I guess water proof is done by the speaker itself since water can pass through the grill anyway.
Haha, but I wouldn't put my phone in water deliberately anyway.
So good luck guys, on fixing the buzzing sound.
Just do it gently, don't press too hard on the grill, I think it will be fine.
dennispoon9432 said:
Here is what I did to reduce the buzzing sound of my Pixel 2 xl bottom speaker.
First I know the buzzing sound is caused by the bad adhesion of the grill.
So I downloaded the app "Frequency Generator" (any app that can make the phone play sound in specific frequency will work). The I turn the volume to 100%, and toggle the frequency bar in the app to find out on which frequency the buzzing is most serious. (I found it's around 500Hz to 1000Hz, but it doesn't matter) Then you use a toothpic to gently press on the grill to see if the buzzing sound reduce. (WARNING: This action may make your phone NOT water proof anymore! Do it at your own risk!)
When I found out the location where I apply pressure can reduce the buzzing. I try harder to slide the grill left and right or up and down.(Again! WARNING! You may damage your phone!) Then I use the toothpic to hold the grill in the position where the buzzing is minimal, then apply heat by hair dryer or hot air gun. In order to soften the grill adhesive to relocate the grill to the less buzzing location.
I've tried this process 3 to 4 times and now my phone buzzing sound is not noticeable even in 100% volume. But I still feel some buzzing sound somethime I don't know if it is a feeling only, or it's really happening.
Anyway, I am now satisfy with my speaker.
After fixing this I am not confident to put my phone in water again, cause I dunno if the water proof it done by the grill or the speaker itself, if it done by the grill then the fix I mentioned will really ruined the water proof.
But I guess water proof is done by the speaker itself since water can pass through the grill anyway.
Haha, but I wouldn't put my phone in water deliberately anyway.
So good luck guys, on fixing the buzzing sound.
Just do it gently, don't press too hard on the grill, I think it will be fine.
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Fix worked and its still waterproof

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