Saturday, January 14, 2017

Morotola Moto G 1st Gen Change Earpiece

How to change the earpiece of a Motorola Moto G 1st Generation. If you have sound problem during phone conversations but through the headphone the sound it is all right, it is probably a problem with the earpiece itself. You can by a new earpiece for less than 5 euros.
The first step its to remove the midframe
Remove all those screws with a Torx T5 screwdriver.
With a plastic opening tool remove the midframe starting with the corner and then sliding gently all the way down.
Carefull with power and sound volume buttons, remove then and put them aside before they fall down. And there I have found something amazing. You can see next to the camera over the earphone connector some metalic debris, it was like some kind of micro magnetic dust. I do not know how it got there, I just removed with a brush.
Unplug the battery connector you can use a pry tool like the one in the picture, it works really well.
Then pull from the plastic label that holds the battery. Do not bend the battery and use the plastic tool to help, like a lever.
Then start removing the motherboard. There are no screws, you just have to lever carefully in those places where the tool can go. Go carefully with it, remove it by the corners. The motherboard is glued to the lcd.
Open it to the side. I am not dissasembling the whole phone here, just putting the motherboard to the side to get to the earpiece.

There you can see the earpice, I am pointing to it with the pry tool
I used a very small screwdriver to remove the earpiece, but the earpiece came appart.
I just broke it. Well I had a new one anyway. But again I found lots of metalic dust behind it. I do not really know how it got there either, I just got rid of it. I am sure that it was that that was causing the hearing problem. It probably interfered with the sound vibration or something as the center of the earpiece is a magnet.

And here is the new one I just mounted. You have to place it in the same way, with the connectors in the same direction than the old one. Well, it works well now!

Friday, December 30, 2016

Fix Motorola G No Sound on Call

I bought a second hand Motorola G 1st generation as a spare phone, but the son during calls did not work. No one could hear me and the microphone seemed damaged and ready to be replaced. I heard the others throgh the speaker but with very bad quality.
When I plugged in the headphones everything worked fine. So I first proceeded to retire dust with a vacuum cleaner and nothing changed. Then I wiped cached partition and reset the phone and the problem was still there. I even though on sending to a repare service but it would have costed me more than the phone itself so I decided to clean the inside of the microphone with a needle.
As you can see the hole is very small and at first I went carefully perceiving some resisting thing that I though it was something from the device itself. I just decided to push a little bit more, just a little without forcing and boom! It works now. I did the same thing with the upper microphone, the noise-cancelling microphone next to the audio jack.
The fact that the microphe was stuck with dust seemed to affect all the audio during calls, the speaker and microphone. Once the microphone was clean the sound's speaker works nicely too during calls.

I just tried this fix with the Motorola G 1st generation but I don't think it would be a good idea to try something like that with a waterproof phone or a really expensive one. Well, microphone hole is really tiny and it is better to keep it out of dust and dirt.