Current version by: mayer (vote details)

Title:

How to fix 'static' noise on Bose QC20i Noise Cancelling Headphones?

Text:

I have a pair of Bose QC20i noise cancellation headphones. When they were new, I could turn on the noise cancellation switch without the jack being plugged in, and they worked fine.

Now, they produce a noticeable feedback sound when not plugged in. This can be altered by touching the tip of the headphone jack.

When plugged in, the feedback goes away, but they produce a hissing sound in the left ear.  Sometimes this hissing replaces the feedback sound mentioned above.

However, when music is turned on, even at a level which is inaudible to me, they seem to work fine.

I bought them new only a few months ago, but the purchase was on ebay so Bose tells me they will not honor the warranty.

Does this sound like something I could try to fix myself?

Any hints on troubleshooting would be appreciated.

Device:

In-Ear Headphone

Status:

open

Accepted Answer:

Edit by: originalmachead

Title:

How to fix 'static' noise on Bose QC20i Noise Cancelling Headphones?

Text:

I have a pair of Bose QC20i noise cancellation headphones. When they were new, I could turn on the noise cancellation switch without the jack being plugged in, and they worked fine.

Now, they produce a noticeable feedback sound when not plugged in. This can be altered by touching the tip of the headphone jack.

When plugged in, the feedback goes away, but they produce a hissing sound in the left ear.  Sometimes this hissing replaces the feedback sound mentioned above.

However, when music is turned on, even at a level which is inaudible to me, they seem to work fine.

I bought them new only a few months ago, but the purchase was on ebay so Bose tells me they will not honor the warranty.

Does this sound like something I could try to fix myself?

Any hints on troubleshooting would be appreciated.

Device:

In-Ear Headphone

Status:

open

Edit by: Walter Galan

Title:

Text:

I have a pair of Bose QC20i noise cancellation headphones. When they were new, I could turn on the noise cancellation switch without the jack being plugged in, and they worked fine.

Now, they produce a noticeable feedback sound when not plugged in. This can be altered by touching the tip of the headphone jack.

When plugged in, the feedback goes away, but they produce a hissing sound in the left ear.  Sometimes this hissing replaces the feedback sound mentioned above.

However, when music is turned on, even at a level which is inaudible to me, they seem to work fine.

I bought them new only a few months ago, but the purchase was on ebay so Bose tells me they will not honor the warranty.

Does this sound like something I could try to fix myself?

Any hints on troubleshooting would be appreciated.

Device:

Status:

open

Original post by: JoeB

Title:

How to fix 'static' noise in left earpiece when noise cancellation on

Text:

I have a pair of Bose QC20i noise cancellation headphones. When they were new, I could turn on the noise cancellation switch without the jack being plugged in, and they worked fine.

Now, they produce a noticeable feedback sound when not plugged in. This can be altered by touching the tip of the headphone jack.

When plugged in, the feedback goes away, but they produce a hissing sound in the left ear.  Sometimes this hissing replaces the feedback sound mentioned above.

However, when music is turned on, even at a level which is inaudible to me, they seem to work fine.

I bought them new only a few months ago, but the purchase was on ebay so Bose tells me they will not honor the warranty.

Does this sound like something I could try to fix myself?

Any hints on troubleshooting would be appreciated.

Device:

Bose QC20i Noise Cancelling Headphones

Status:

open