Iphone4 Mic Not Working Thread.....

[nycu]

Originally Posted by persianuser

1.most probably you killed A4 cpu
2.and this solution is not working in all conditions and in most cases reballing wont solve it that you have to change it.
as i told above i sent 2 set's with this problem to one who i said can repair without touching pcb & he repaired them for me without any single sign of workin on audio compiler & etc .i disassembled & saw it by myself .
but how? i dont know
most probable its from one of the upper or lower flexes but flexes in market are totally crap
send any success story of it

For me it's just a sad storry because I have killed a verry expensive phone.

[francis1986]

Originally Posted by nycu

For me it's just a sad storry because I have killed a verry expensive phone.

I am doung this procedure everyday with 100% success rate.

You can send your phone across to Dubai & I will fix it for free, you pay the courier charges

Cheers,

Francis Rodrigues

[mohsin27aug]

Originally Posted by nycu

For me it's just a sad storry because I have killed a verry expensive phone.

I have repair many phones with this solution it when we reball audio ic if u have some confusion regards this solution ask in this tread some one will help u bit dont say is will not work try it it is 1000000000% working solution

[nycu]

Originally Posted by mohsin27aug

I have repair many phones with this solution it when we reball audio ic if u have some confusion regards this solution ask in this tread some one will help u bit dont say is will not work try it it is 1000000000% working solution

Bro read my previous post too to fully understand what do I mean.

[speed_gsm2005]

not work for me ????????????

[sheikhzada]

Originally Posted by francis1986

I am doung this procedure everyday with 100% success rate.

You can send your phone across to Dubai & I will fix it for free, you pay the courier charges

Cheers,

Francis Rodrigues

Francis, my phone has all of a sudden developed this problem. It was working fine for the last 3 months but since last week, the mic is not working. I am guessing this is due to the noise cancelation. I am also based out of Dubai. Would it be possible for your to fix this for me? Please PM your number.

Thanks,

Faisal

[chandy pok]

Originally Posted by nycu

Man I tried you solution an shown in the tutorial an d now my phone does not power on.
Do you have any ideea why?

First of all u must becarefull the chip beside audio ic.It may damage when u use hot air gun.This the most important.

[mp3]

Does any body here can post the schematic diagram for voice processor IC? Because making direct jumper in the board itself might help as the second option just incase we damage the IC.

Thanks in advance....

[switch998]

Originally Posted by mp3

Does any body here can post the schematic diagram for voice processor IC? Because making direct jumper in the board itself might help as the second option just incase we damage the IC.

Thanks in advance....

Tell me the part number printed on that IC.

[iCall]

Cool job Francis1986

[mp3]

Originally Posted by switch998

Tell me the part number printed on that IC.

numbers seen on this IC can be changeable....

[.:SUBRATA:.]

Originally Posted by francis1986

I am doung this procedure everyday with 100% success rate.

You can send your phone across to Dubai & I will fix it for free, you pay the courier charges

Cheers,

Francis Rodrigues

Mr Francis

This time I've different problem got another iPhone 4 with microphone problem. What is different in this phone i can speak using Loud speaker. but normally opposite can't hear anything.

Solution is similar to last one ? or anything else for this phone ?

[francis1986]

Originally Posted by .:SUBRATA:.

Mr Francis

This time I've different problem got another iPhone 4 with microphone problem. What is different in this phone i can speak using Loud speaker. but normally opposite can't hear anything.

Solution is similar to last one ? or anything else for this phone ?

When you use Loud Speaker; noice cancellation MIC is activated for audio feed, hence you can speak normally while using Loud Speaker.

NOW, check whether you can record anything using Voice Memos. If yes; then do the same procedure (reball the audio compiler)

If NO, recording is not possible using the Voice Memos then, change the primary MIC.

Cheers.......

[.:SUBRATA:.]

@ francis1986

Nope, i can not record voice memo. i need to change primary mic.

Thanks for help buddy.

[AlvesBelgium]

Originally Posted by francis1986

When you use Loud Speaker; noice cancellation MIC is activated for audio feed, hence you can speak normally while using Loud Speaker.

NOW, check whether you can record anything using Voice Memos. If yes; then do the same procedure (reball the audio compiler)

If NO, recording is not possible using the Voice Memos then, change the primary MIC.

Cheers.......

First thing sorry for my english...

Hi Francis,

As i can see, you know a lot of thing on the iPhone 4. Maybe you'll can help me.
I changed a LCD screen on a iPhone 4 but now i have the noise cancellation problem... it wasn't my phone and i don't know if it was working before disassembling it.
I found this thread People can't hear me after replacing screen - iPhone 4 - iFixit
but nobody respond on it.
Do you think that i have assembling something wrong ? Or it's the same problem that your are talking here?
If i can't find somebody to do the job, can i send you my phone ?
Thanks a lot and happy new-year