is it possible to change new nokias mic.

[mansi]

is it possible to change new nokia handset's mic's??
new digital mic. like in e90 e51.
[microphone got poor quality].
phone is almost new, but unfortunately it got no warranty.


BR
Mansi

[bestman]

tip.
1. check if phone speaker is turn off ?.
2. check if phone volume is low?.
3.check if phone mic and speaker are in place?.

Bestman

[mansi]

Originally Posted by bestman

tip.
1. check if phone speaker is turn off ?.
2. check if phone volume is low?.
3.check if phone mic and speaker are in place?.

Bestman

i appreciate your help, but you need to know that the phone is fully working 100%, mic is soldered on board [like v3 and k750].
i tested phone with headset, its working 100%, so its not a circuit problem.
its only microphone fault, but i am not sure if it can be replaced, because its soldered on the phone's board, and even if you got new mic, you will damage it if you want to solder it with hot air.


BR
Mansi

[bestman]

good. since you can use headset - keep to it.
i will post you, a better solution soon.
or
post me an email for a reminder .

bestman.

[Pandemonio100]

Post here your solution so you can help all.

[calvinpower]

can we have tutorial on this please.

[ekel]

Originally Posted by bestman

good. since you can use headset - keep to it.
i will post you, a better solution soon.
or
post me an email for a reminder .

bestman.

i think it`s better if someone post here how to change digital mic with hot air. make it sticky

[oOXTCOo]

yes i have changed it many times.

you need to desolder it, its sometimes very hard to desolder, you need hotair and solder iron to remove the rest.

after this, clean the pcb and take some solder of the 4 contact bals.
now heat the pcb with hotair and place in same time the new mic in place.
use hotair and heat the mic only on the sides, not from upper side.

i soldered in this way many times, and mic is working after this, not get demaged.

br.
hari

[Pandemonio100]

Originally Posted by oOXTCOo

yes i have changed it many times.

you need to desolder it, its sometimes very hard to desolder, you need hotair and solder iron to remove the rest.

after this, clean the pcb and take some solder of the 4 contact bals.
now heat the pcb with hotair and place in same time the new mic in place.
use hotair and heat the mic only on the sides, not from upper side.

i soldered in this way many times, and mic is working after this, not get demaged.

br.
hari

Right this is the solution but you need to have a good hand a good hot air the problem can happen whit 6 pin of E90 digital mic and this is very hard to do whit hot air, better to have an infrared machine otherwive you could have serious problems, so attention first to do any operation ensure that you are calm and concentrated. There is also another solution not very simply but for sure you can't destroy nothing, for 4 legs mic work perfect for 6 i don't try, need only to solder 4 bridge from mic to pad of main board you can use tiny wire for me in E90 work perfect.
The engeener who make second revision of E90 whit mic at 6 pins probably it was drunk to concept this system and without to think that when would have been damaged they would have been several problems for change them.:-)))

[ekel]

Originally Posted by Pandemonio100

Right this is the solution but you need to have a good hand a good hot air the problem can happen whit 6 pin of E90 digital mic and this is very hard to do whit hot air, better to have an infrared machine otherwive you could have serious problems, so attention first to do any operation ensure that you are calm and concentrated. There is also another solution not very simply but for sure you can't destroy nothing, for 4 legs mic work perfect for 6 i don't try, need only to solder 4 bridge from mic to pad of main board you can use tiny wire for me in E90 work perfect.
The engeener who make second revision of E90 whit mic at 6 pins probably it was drunk to concept this system and without to think that when would have been damaged they would have been several problems for change them.:-)))

hehehehe that`s what i think sir. not so easy. ide, skill, good hand, need calm and concentrated. how to resolder thin wire to 6 ball. so we don`t need to rehoot digital mic.

[sazr]

some times iused to do with jumpers working good (mic should be original)

[garrr]

ive done this in e51 many times... all you have to do is to take out first the charging or ui connector, not that easy but it works.. use the hot air for pulling it out..why? - because you will resolder the mic with hot air direct to the board below not in the mic itself.. hope it will help...

[oOXTCOo]

Originally Posted by garrr

ive done this in e51 many times... all you have to do is to take out first the charging or ui connector, not that easy but it works.. use the hot air for pulling it out..why? - because you will resolder the mic with hot air direct to the board below not in the mic itself.. hope it will help...

right, i tryed with ir station too, but mic dont worked after this.
this is the reason way i use hotair.

this jumper solution i trayed too, but i like it direct soldered

JUST TEST WITH BROKEN BOARD BEFORE YOU GET TO A FULL WORKING E90, TO GET NEEDED SKILL AND YOU HAVE NO PROBLEM.


br.
hari

[oOXTCOo]

Originally Posted by garrr

ive done this in e51 many times... all you have to do is to take out first the charging or ui connector, not that easy but it works.. use the hot air for pulling it out..why? - because you will resolder the mic with hot air direct to the board below not in the mic itself.. hope it will help...

use metall tape to cover the connector, dont need to be removed.

[Dalite]

I have tried resoldering from reverse side of board when change mic but still not working.
Help please