[Q] Help Please! Microphone Dead/Very Quiet..?

[API182]

Right, here’s the situation, I replaced the screen on my HTC Desire HD a few days ago and literally the first boot since there was a Wifi notification of a ROM update also, so I did it... (Orange UK Software number 3.13.61.5) anyway, since replacing the screen / updating the ROM, the Microphone has gone ridiculously quiet when making or receiving a phone call and if I open the Voice recorder, I can barely hear my recorded voice back, and the only way people can hear me when I call them is if they put it on loudspeaker and still put the phone to their ear...

Ok so initially I thought that this might be a hardware issue as I have been in the phone, however, given the fact that I can hear some playback via voice recorder, this means that the Microphone is working..?

So after a bit more investigation, I found that if I remove the bottom panel that covers the SD Card and Sim Card slots, then Voice recorder works perfectly (but my signal drops off completely so I can't test a phone call... *Are the 2 little gold contacts to do with the antenna?*) So I have come to the conclusion that it must be software? As obviously when these 2 little gold contacts make connection with the phone again, ye it enables me to make a phone call, but wrecks the microphone...

On a side note, I have checked the little Microphone hole on that bottom panel and shoved a pin through it and it’s as clean as a whistle so it can't be a blockage of any sort...

So something is happening when the bottom panel is on the phone, those 2 gold contacts tell the phone to do something? Provide an antenna for it but in doing so almost muting the microphone at the same time..?

Any ideas on how I can fix this or where shall I start? Could this still be a hardware issue? Shall I strip the phone down again and pay special attention to a specific part? :S

Please Help!?

Thanks in advance!
Adam.

 

[shad0wboss]

which rom are you using? if that's a stock rom, it is highly recommended that you try one of the custom ones from development section (sense 3.5 roms)

 

[API182]

Yes, its a stock ROM that was pushed OTA... It's a friends phone, I have a HD2 so I'm very familiar with flashing roms etc... but I'm going through the custom roms section and I can't seem to be able to find a good guide as a starting point..? I see a lot about Downgrading? and S-Off..? (Does that mean Signature Off?)

Thanks very much for the reply though!

 

[API182]

Ok... I've flashed a custom ROM now, and a different radio '[ROM] Android Revolution HD 7.0.3 | High Quality & Performance | O/C | Legendary' is the rom I used...

Exactly the same... It's as if the microphone level is right down when the phone has signal/network as if I shout the voice recorder picks stuff up then...

Is there an App I can use to tweak the gain or something on the Mic levels?

I've had the phone in bits again and cleaned out everywhere, theres no dust build up or anything of the sort so I'm sure its not hardware related... but then if the ROM is completely different then it can't be software either can it..? :S

Cheers, Adam.

 

[shad0wboss]

Ok... I've flashed a custom ROM now, and a different radio '[ROM] Android Revolution HD 7.0.3 | High Quality & Performance | O/C | Legendary' is the rom I used...

Exactly the same... It's as if the microphone level is right down when the phone has signal/network as if I shout the voice recorder picks stuff up then...

Is there an App I can use to tweak the gain or something on the Mic levels?

I've had the phone in bits again and cleaned out everywhere, theres no dust build up or anything of the sort so I'm sure its not hardware related... but then if the ROM is completely different then it can't be software either can it..? :S

Cheers, Adam.

I'm no expert on electricity and all that but can it be possible that the power input onto the mic is being too low so that it is not functioning properly due to a newer screen sucking up a higher power? but then you mentioned that by removing those plates, it works fine...

I couldn't come across a fix as it seems that not many people had this problem so it seems that it is more of a hardware problem but i'll post asap i find something

EDIT: maybe this

 

[API182]

Thanks for the reply! I can't understand what it could be... I have figured out though that if I hold the phone horizontally in front of my mouth and talk then it works... so I'm completely stumped as to what it could be...

Is there no way I can edit some sensitivity figure somewhere? :S

Cheers, Adam.

 

[jeff.grigg]

No mic issue continued

Thanks for the reply! I can't understand what it could be... I have figured out though that if I hold the phone horizontally in front of my mouth and talk then it works... so I'm completely stumped as to what it could be...

Is there no way I can edit some sensitivity figure somewhere? :S

Cheers, Adam.

Hi All

I have had the same issue with no mic imput when calling someone on a HTC Desire 500 phone.
My problem started when I paired a plantronics bluetooth hands free device to my phone and started to use it.
While using the PK100 device all was perfect and no issues, but when I turned off the hands free device I now have the same issue no one can her me through the phone mic, no sound at all. I believe this issue is both software and hardware the software needs to switch the hardware (mic) on and off
It is as if the mic has been switched off by the (PK100) bluetooth hands free but the software on the phone is not re-enabling the phone mic so now I am in a situation where i can only use my phone via a diferent mic headphones or PK100 hands free.

I can also add that while in a call I have the option to switch from the hands free on the phone, or to use the phone or to use the PK100 from an in call option all works ok but the mic on the phone will not reactivate. this seems to be an issue with the software not activating the mic.

If anyone has any idea I would like to here...