Question How to downgrade yamaha yas-108 firmware

[ednihs]

I have upgraded my yas-108 firmware to v5.0, but after the upgrade the bass seems to be heavy and doesnot sound good. I would like to revert to v4.0 could anyone please help. V4.0 firmware is not available anywhere in the net

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[gmill89]

I can't upgrade from Firmware 2.0. I imagine downgrading involves finding the 4.0 firmware and doing the firmware install.

How did you get the firmware to install? I have a proper USB stick formatted fat32 with the proper Firmware 5.0 file on the root of the stick and when performing the directions all I get is the red light which means a problem.

I can not find earlier Firmware before 5.0. Let me know how you were able to upgrade? Thanks

 

[gmill89]

Yamaha support told me today they have pulled the 5.0 Firmware dues to issues. You should go to their support page and do contact us/ chat now during business hours and they can suggest a fix. They told me there is no 4.0 firmware for the YAS-108 and that it went from 2.0 to 5.0.

 

[hoppem]

Yamaha support told me today they have pulled the 5.0 Firmware dues to issues. You should go to their support page and do contact us/ chat now during business hours and they can suggest a fix. They told me there is no 4.0 firmware for the YAS-108 and that it went from 2.0 to 5.0.

As far as I can see, v5.0 is still the only version available on the Yamaha support site. There is a v4.0. In fact, I just downgraded from 5.0 back to 4.0 because of ARC stability issues. I'm new to these forums, but I'd be glad to provide a copy of the 4.0 firmware that I have.