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Yoga 3 14 (1470) stops on 0,48GHz, random turn downs

2017-03-05, 0:22 AM

Hello community,


My Yoga once stucked on 0,48GHz, became almost useless and there was no option to anyhow increase it. I tried every power plan and nothing worked. I saw a similar thread here about Yoga 11 and they advised to update BIOS, but I've done it abount month ago using latest version from 2016 - BACNA0WW so I thought that it's stupid. But after hours of annoying tries I finally installed the same BIOS again and it somehow managed to return to normal 2,2GHz and more...

It was about 1 week ago and today the same thing happened... Additionally I observed that when I charged my Yoga Windows indicated that "Power connected - NOT CHARGING' but of course it was charging and percents of battery were getting bigger... And after some tries I 'updated' the same BIOS again and my toubles ( 0,48GHz and max 20% of processor workload and bad battery indicator) went away... 

Besides that I struggle with some random turn downs (sleep modes) I observed that my Yoga turns down sometimes because for a short moment there is let's say abou 5% of battery and computer wants to save it so it go to sleep. I noticed that sometimes I certailny had about 90-95% and all of the sudden I had a warning that battery is low, only 7% left! and after 10 seconds it was back to 92%.... (haha turn down just  happened while I was writing this)


I am really disappointed with this laptop... I dont want to send it for guarantee repair bacause it's my only computer... And I think it's not the best think to reinstall you BIOS from time to time ;)


Some info: It's Yoga 3 14, i5-5200U, 4GB ram, 128SSD, Windows 10

Can you help me? :) 



I am almost sure that it's because of battery, my indicator is still wrong and for now, on 5h of battery work,after a few restarts it's still telling me that it's charging all the time... I have 23% and it tells me that it's charging (what's wrong!) and tells me that full charge will be in 4 minutes... 



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Re: Yoga 3 14 (1470) stops on 0,48GHz, random turn downs

2017-03-06, 14:09 PM

Hello Jed94

Thanks for using the Lenovo forums.

Try a static discharge for this, it may help to resolve the issue or at least get rid of any built up static on the motherboard.

(If the battery is internal, please just skip the remove/replace battery steps.)
1. Turn the unit off
2. Remove the battery and the Mains adapter
3. Press and hold the front power button for 30 seconds
4. Replace the battery and the Mains adapter
5. Turn the unit on as normal

Hope this helps, let us know how you get on.

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