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sonichood

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About sonichood

  • Birthday 02/11/1975

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  1. Hi all!, I have the next situation. I have a Lenovo Ideapad Y410p, bios version 3.05. When I was doing a battery calibration, when the percent was in 1%, suddenly the laptop turn off and didnt turn on again... It was my second battery calibration, the first one was last year and everything was fine. Now, obviously the battery with 0% of charge, I'd tried to turn on but it doesnt work, so after read several forums I saw a temporary solution... pull back the battery, unplugged the ac charger, plugged again and turn on, and it works... after that, with the laptop turned on, put the battery and start to charging!!, ... but... If I remove the ac charger, and plug in again, the battery not charging, The only way that works are the steps that I commented before. I know that is not a hardware issue, is a software issue. I have a friend who has the same model laptop and swap the battery and ac charger and at his computer it works fine. So I tested the ac charger, is it ok when before connect to the laptop, 19.5V, but, with the battery inside, the ac charger down to 8 o 7V. So this is my theory, The computer (bios), is switched to drain the battery, and it doesnt change the status, so unless change this status the battery will not charge or the computer will not start on with the battery inside and connected to the ac power. I read that several people had this problem, with different lenovo models, so Im not the only one that I have the issue. Question, somebody had this problem and fixit? Is a possiblity to downgrade the bios version to re-flash again? Any suggest? Thank you for your support! Pablo.
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