Hello everybody. My problem is a dead Lenovo Yoga 500-15ISK just 2 months out of warranty. As of previous yoga models, this one had some charging problems for about a month and now it stopped working completely. When you place the ac adapter you can see a blinking led in battery and blinking keyboard backlight once every some seconds. Tried everything from peripherals and I am ensured that the problem comes from the motherboard. If anybody can split this bios file for me, I would appreciate that, and if anyone knows what's the charging IC chip on this motherboard (fru: 5B20K36401) it would help me. I have located 1275C chip but I don't know if this is the power controller.
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Seing is Believing
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Re: Lenovo Yoga 500-15ISK BIOS or Battery charging chip
At this moment, don't offline flash those bios. Yoga and most of newer Lenovos uses MATCHED bioses for Main and EC. Different version, it won't startup. You could try backup the main bios. Refresh the Intel ME. Flash it back to the bios chip.Last edited by jeremykum; 06-20-2017, 06:39 AM.Mainly repair laptops, sometimes LCD/LED monitors. Also accepts changing/reballing/reflow BGA job request. -
Re: Lenovo Yoga 500-15ISK BIOS or Battery charging chip
Have you tried to disconnect the battery and check if it works without it?Comment
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Re: Lenovo Yoga 500-15ISK BIOS or Battery charging chip
Francisco.s that was one of the first things I' ve tried with no luck.... Unfortunately I had to pay to a local engineer to fix the motherboard.... motherboard is alive now.... battery is dead, it cannot charge at all. it must have drained too much power and burnt the charging circuit I think. I don't believe that this guy revived my laptop by refreshing the bios. Any fresh ideas? ( Motherboard doesn't seem any components changed, but as the components are removed with hot air, there shouldn't be anything visible )Seing is BelievingComment
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