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dvarta
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Feb 13, 2020

Sound is not good after update firmware

After update firmware (QC II) the sound is really bad,

How can I fix it? 

Regards.

1 ACCEPTED SOLUTION

Accepted Solutions
Keith_L
Community Manager

Re: Sound is not good after update firmware

Author Accepted Answer selected by dvarta

Hi dvarta,

 

Given the troubleshooting you have tried already, if you the sound is still not the same as it used to be  I would recommend getting in touch with your local support team to resolve this. You can find the contact information at this link, by selecting your country/region and then the 'Contact Us' option at the bottom of the page.

 

Let us know how you get on.

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8 REPLIES 8
Jessie_O
Moderator

Re: Sound is not good after update firmware

Hi there, 

 

Welcome to the Bose Community! 

 

I'm sorry to hear that you are experiencing some issues with the sound. I would recommend resetting the headphones. You can do this by following the instructions which have been outlined on the LINK HERE.

 

Let me know if this helps!

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dvarta
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Feb 13, 2020

Re: Sound is not good after update firmware

Hi, I reseted my headphones but the problem persist.

Pls... I need to downgrade the firmware to 4.3.6 or lower, one of them that works!

How I can do that?

Vicky_W
Moderator

Re: Sound is not good after update firmware

Hello, 

 

Thanks for getting back to us so quickly. 

 

At this moment in time, there is no way to downgrade the firmware of your headphones. Can I please ask what you mean when you say the sound is really bad? It also would be great to know what you are connecting to and how are you connected? 

 

I look forward to your reply! 

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dvarta
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Feb 13, 2020

Re: Sound is not good after update firmware

Hi !!

I am connected to my computer and my iPhone, I always did it that way, and since I updated the firmware the headset stopped having the good sound it had. With firmware 4.5.2 the sound sounds far away, with few bass, and at times it is distorted as if there was a bad blotooth communication (similar to a bad IP telephony communication). In addition, at times the lyrics of the songs are not understood nor the treble are clear. It looks like a sound ball without clarity with cuts and distortions, as it was before the update.

I hope this description is understandable!

Vicky_W
Moderator

Re: Sound is not good after update firmware

Thanks for clarifying. 

 

I would like to try clearing the Bluetooth pairing lists on the headphones and on your devices. 

 

We can do this by holding the button in the 'Bluetooth' position for around 10 seconds or until you hear "Bluetooth device list cleared". For details on how to clear the Bluetooth device list from your phone, check the manufacturer's website. 

 

Let me know how you get on!

 

 

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dvarta
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Feb 13, 2020

Re: Sound is not good after update firmware

Hi,

I reseted the headphone, cleared the bluetooth list, tried to change the firmware again, I did everything without results.

To go faster, please see https://community.bose.com/t5/Around-On-Ear-Headphones/Bose-QC-35-ii-firmware-4-5-2/td-p/213820, there are 221 pages with the same problem. This does not happen to me alone, but it is a firmware problem and I need to fix it.

Besides, my computer and my iPhone are the same, the only change was the firmware update.

I hope this results a value point for your analysis.

Keith_L
Community Manager

Re: Sound is not good after update firmware

Author Accepted Answer selected by dvarta

Hi dvarta,

 

Given the troubleshooting you have tried already, if you the sound is still not the same as it used to be  I would recommend getting in touch with your local support team to resolve this. You can find the contact information at this link, by selecting your country/region and then the 'Contact Us' option at the bottom of the page.

 

Let us know how you get on.

Feel more. Do more. Be more.
Come check out my profile here. New to the community? Check out the Getting Started board.
Help others find answers to your questions by clicking on 'Accept as Solution' at the bottom of a reply.
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tprosys
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Mar 22, 2020

Re: Sound is not good after update firmware

To be sure that my QC 35 II's aren't contaminated with the 4.5.2 firmware "update", I uninstalled the Bose Connect app from my phone. 

 

If there's another way to block updates, please let me know. 

 

But until there's a fix for all of these reported problems, including the ability to revert to a previous, working, version, I'm leaving well enough alone.