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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Hi
I have a very strange issue with the BIOS SPI chip of an ASRock B650M PRO RS motherboard.
The SPI chip is an Winbond 25Q256JWEQ model (1V8).
The motherbaord doas not POST - it lits only CPU and DRAM EZ Debug Leds, and stays that way forever.
The Flashback function of the motherbaord is also not working, despite all instructions followed correctly - I'm 100% sure of this.
I have then desoldered the chip, backupped the contents, and tried to earease the chip in order to program stock image, but the chip is locked by status registers SREG2 (TB) and SREG6... -
Hello, first of all, excuse me, I am using the translator, English is not my native language.
I have a Lenovo ideapad 330S - 14IKB laptop.
The tablet did not recognize me when I connected it, so I checked the device manager and I realized that there were many with the exclamation mark, so one by one I began to update their drivers until the sign disappeared of admiration, I even updated the BIOS, and the laptop rebooted normally and worked, so far so good, but the tablet still did not recognize me, I read on the internet that it could be due to a... -
Hello, My lenovo x1 yoga gen5 laptop has been unstable and sometime freezes. After downgrading the bios i was normal for a moment but when back to being unstable.
If anyone has an working bios please share it.
Laptop lenovo x1 yoga gen5. serial number PF-2MSZ9Q. Type number 20UC-S2410N. Motherboard model number GX4A0/GY650 NM-C881 Rev1.0. Bios chip GD25B256DYIG... -
Common SPI bios chip programming Questions and Answers
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Q: I have a bios request,i can`t post my backup as i can`t read from the chip.
A: If you can`t read from it how do you expect to write to it ?.
Q: Why is my bios chip unreadable ?.
A: The programmer is faulty or has a worn or broken zif socket.
The USB cable is frayed,connector pins worn or some other physical damage.
Not enough amperage or voltage to power the programmer properly.
Bad...09-02-2021, 04:40 PM -
Hello Community,
I recently tried to change the Batterie on my Omen by HP Laptop 17 an104ng and after putting in the new batterie ([Batterie Link](https://www.amazon.de/7xinbox-17-AN0...&keywords=16%2...
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