Question about Nokia 6255i

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Mic not working

I do everything like washing,flashing i check from meter every thing is ok but my mic not working i also change d mic 10 times but result is not done so plz give me advise to enabling d mic

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Mic not working

Posted on Oct 24, 2010


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  • Nokia Master
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So i think ur mic ic has corrupt as a result, u had no result.at this time u need go to tecniciation and discuss with his/her. thanks

Posted on Jul 25, 2009

  • forg8u Oct 24, 2010

    please tell me cdma china mobile

  • IT Solution
    IT Solution Oct 26, 2010

    Firstly format your cell phone by using this code *#7370#. but remind that when you format your phone then your former contact no and sms everything will be erase. if unfortunately it doesn't work yet then please open your casing and wipe your mic dust if if has and then check your mic quality still is it ok. if not then please contract with a professional technician. he may check your mic connector or linking additional matter. if ok then may he advice to change your mic. thanks

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Posted on Jan 02, 2017

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1 Answer

My Midland just stopped working nothing works anymore


unplug the mic,take a volt meter put the setting to x1 or sound.
first thing , test the fuse to see if its burnt If its ok then check the reverse polarity diode. then if thats ok Touch the positive wire to the radio with the pos.lead then touch the pins on the mic plug.You should get some kind of tone when this is done. If you don't get a sound then go to the rear of the set and touch the neg.lead to the neg wire at the power intake and work towards the front.You should find where the tone stops soon. turn the radio over at this point and check to see if the pcb has a crack in it. There could be a bad spot on the pcb. If you find a bad spot take a piece of jumper wire from another set of course and solder across the break don't leave any wire exposed. the radio should power up

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Have a 99v was talking one nite talking great turn it off then back on no modulation check and change mics.still no mod.what should i look for ?


Check the mic gain.
Make sure it is not in PA mode.
Make sure the mic jack in the radio doesn't have a broke or loose wire.

Those are a few things I can think of based on the information given. More information is needed if these will no solve the problem.

Does it turn on?
Does it key up?
If it keys up is there carrier?
How many watts is the carrier?
Are there any mods done to the radio?
Does it have a roger beep installed? What kind?
Does it have an echo board install? What kind?
Did you do the mod or some one else?
What is your SWR?
Is the display flashing when you key it?
Are the displays lit at all?
Did you disconnect the power cord after you turned it off, and reconnect it?
What channel are you keying up on.
Was/is the case off the radio when you tried it or were you working on it at the time of the failure?
What mics have you tried.
are you using talk back?
did you some one on another radio tell you they do not hear you, or are you going by no swing on the meter in the radio?
Could the meter be bad?

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Radio squeals part time and meter only goes up half way when keyed up


you have a Microphone problem.. change your Mic. Mine done the same thing when Mic wires shorted together inside of the handpiece. Also, when it doesn't match the Ohm impedence. you can buy a replacement Mic at www.copperelectronics.com or Radio Shack.

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1 Answer

Radio worked fine when bought 2 days worth went to key up mike only sound is a sustained whistle sound,took to repair shop had fixed guy said he rebuilt talkback worked again 2 days same result sustained...


Do it have a relay mod for the talkback if so take that thing out. use the normal talkback. We are in TX.. no charge to check out.. I would check to make sure it has just plain normal talkback, and no other mods done first.. any other mods done??

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I wash my engine all the time too. The only thing I can think of that you might have done is get a waterproof seal on or near the coil pack wet. If you have a compressor, take out the plugs and blow them dry. The vat thing, I am unfamiliar with, Unless it is the anti theft system, which is a ****** to fix if it goes wrong. I know it kills just about everything, why not the pump? But if your engine turns over, that is not it. Check the oil. Check the stuff that got the wettest. Hope this helps.

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Dodge Caravan 2003 airbag and engine light


Sounds like the HVAC control head needs to be recalibrated. The procedure is fairly easy, Heres how its done:

CALIBRATION/DIAGNOSTICS TEST ENTRY
TO INITIATE TESTS:
Set Blower motor ON HIGH
Set Mode position to Panel
Set Temperature to Cold (Both slide pots if equipped)
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it is due to mic problem

1. mic cable may breaked
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2. other wise ur pc mic supporting software is not properly added
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