[Solved] Lenovo Legion Y740-15IRH BIOS Recovery

Discussion in 'BIOS Mods' started by Tyroq, Feb 4, 2021.

  1. Baskara Eko

    Baskara Eko MDL Novice

    Mar 22, 2023
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  2. dragunowka

    dragunowka MDL Novice

    Sep 8, 2019
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    Hello, someone solved the problem with the firmware on the y740 17ichG laptop I killed it with undervolt, the firmware via ch341a did not lead to anything other than a lit port display indicator, what should I do?
     
  3. dragunowka

    dragunowka MDL Novice

    Sep 8, 2019
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    And i dont know how i can flash ec ..
     
  4. djmagjay

    djmagjay MDL Novice

    Jan 2, 2024
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    inno extract is crashing, it will not open. the dialogue box just disappears. am i missing something. please help someone
     
  5. SlimsMcGee

    SlimsMcGee MDL Novice

    Mar 11, 2024
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    Thank you so much for all of the info you've given so far. It has pushed me a lot farther than I could have gone on my own. I'm currently stuck though. My 17iCHg has a Winbond chip. It is a W25Q80EWSSIG, but based on what I've seen this means it's an 8Mb chip. Whenever I load up my programmer (using IMSProg on Linux Mint, all software up to date) the program states it is a 1Mb chip. Am I doing something wrong? Is this indicitive of the chip being bad? Also using your method makes a 16MB file. If my chip is 8Mb, using this method doesn't fit on the chip. Sorry, I'm learning, but new at this. Thank you for any help!
     
  6. nitin29

    nitin29 MDL Novice

    Apr 7, 2016
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    Sorry for the late reply as I don't check the forum regularly.
    I'm not sure about your model but remember that a motherboard may have many ic which may look similar. If one of the ic has marking with 128 in its part number, then most likely the method described in this post will work. Otherwise, you have to find if the original bios file is itself smaller and that's the reason the ic size is also smaller, if it is the case then you can try the offset if they are same.