How to fix 'static' noise on Bose QC20i Noise Cancelling Headphones?
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.
Same issue here. Left ear static when it used to be a quiet heaven.
Unrelated people telling the same story seems like a design or component issue. I treat this earphones carefully so it is not user abuse. Would Bose offer a solution or should we start looking for other brands and/or options?
由 Creador 完成的
I have the same problem. I got it almost 2 years ago. Now the noise cancelling feature seems to cause me lots of trouble as I cannot enjoy the quiet time as I used to. Is there something wrong with it? How come we all have the same problem? From this perspective, Bose noice cancelling earphones do have flaw design issues. How are we going to deal with it?
由 cdinh72 完成的
Bought mine QC20i just a week ago, used them every day since and they worked fine until yesterday with astonishing noise cancelling effect. But yesterday there started coming a "white noise" in my right earphone, didn't matter if it was plugged in to a sound source or not. It has gotten increasingly worse and today also really loud booming bass rumble in both earphones, but worse on right, when for example a car passes by on the street when previously I wouldn't hear the car thanks to the noise cancelling. Don't know if there's any way to "reboot" the earphones. Or if they just successively broke down after one week.
Mind you, this isn't at all related to whether they're plugged in or not.
由 Sramforce 完成的
i had mine for only six months before they began to hiss in the right ear. i called bose and they told me to send them in for 'replacement' ... but when i got them back, same problem *and* less effective noise cancellation when in the cancel mode. i called again. i was told that this time they would be replaced instead of repaired. not sure if replacement very happened but upon receiving them back a second time, they were now not hissing but the noise cancellation no longer works half as well as it did originally. not at all noise cancelling any longer. i thought perhaps they had changed them deliberately or something.
very discouraged and a little mift as they are expensive and i take very good care of them. not sure where to go or what to do at this point...except dissuade others from making the purchase until bose gets its act together on these things.
由 leslie 完成的
I have exactly the same issue. Static type crackling in the left ear. Seems to work fine for a few minutes when first plugged in and then nothing I can do can make it work again.
由 dbuwh 完成的