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BaoFeng UV-5R microphone problem

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Sep 10, 2016
Hi all, brand new Ham here.

I noticed that my BaoFeng UV-5RV2+ works when I use the external microphone attached to the two audio jacks. But when I use the built-in mic, nothing is transmitted other than the opening and exiting squelches. It is as if the built-in mic is not working.

I have had this device for 4 days, could it already be damaged? Or is it a setting somewhere?
Dec 19, 2002
Wichita Falls, TX
A common problem is the internal switch in the microphone jack sometimes has solder flux or dirt in it and doesn't make contact when the plug is removed.
Some people have fixed it by cleaning the jack with alcohol or contact cleaner.
Sometimes the jack is defective and cleaning doesn't help.
If the radio is new you might be better off returning it.

There are no menu settings that disable the internal mic.


Premium Subscriber
Dec 13, 2014
GA, AL, TX, OK, KS, AR, NC, or MI
I own several Baofengs but like I've said several times in this forum, they're like Bic lighters and Chinese motor scooters. They're disposable. If they quit working, you throw them away because it's almost impossible to fix 'em.
Jul 18, 2014
The built-in mic is probably bad, or it could be crud on the jack contact like nd5y said. Return or exchange the radio if you can, otherwise just use it with an external mic.
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