Headphone output not working after Android 5 update (Yoga Tablet 2 10")

Hi! First of all, thanks for the Lollipop update, it is working great!There is only one problem I ran into: when I connect a headphone to the audio jack I can hear no sound/music.Before update to Lollipop there was no such problem and headphones work with other devices. I tried a factory reset, but it did not help.Turning Dolby program on or off or changing its settings does not change anything. Audio from built in speakers is normal as is bluetooth streaming.Tablet recognizes headphones: little icon appears on notification bar and speakers are muted upon insertion and playback is stopped in Play Music app upon removal.Also when music plays and I open Dolby app I can see the spectrogram moving, but there is no sound coming though audio jack. I assume this is a software error in Lollipop firmware and would confirm it if I would know how to downgrade firmware...  I hope this issue will be fixed in next patch. Best,András 

Lenovo is investigating customer reports that certain headphone/headset/ear bud devices that previously delivered audio through the audiojack no longer work on Yoga Tablet 2 devices after the tablet was upgraded to Android Lollipop, yet other listening devices do.
It would help the investigation if several customers would be willing to provide logs capturing this failure event for Yoga Tablet 2 8 or 10 1050 models.
To capture logs, please follow this procedure: http://support.lenovo.com/us/en/products/tablets/yoga-series/yoga-tablet-2-830/documents/HT103449
Once you have collected the logs, please zip the files and attach them to an email which can then be sent to [email protected] If the file is too large to send, please provide a link to the hosted file.
With the email, please include the following information:
Name:
Forums User ID:
Model: 
S/N:
Discussion Link: XXX
A description of the failure and any other information you would like to share such as the audio device no longer working:
Zipped attachment or link to hosted file:
Once I receive multiple logs, I will open a case to escalate these reports for a solution.
Thank you,

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