Failed BIOS Update on Asus GX703HS - Reward for Help!

Discussion in 'BIOS Mods' started by AngieAndretti, Sep 2, 2021.

  1. AngieAndretti

    AngieAndretti MDL Novice

    Aug 9, 2018
    Hey guys. The BIOS Update locked up on my Asus GX703HS laptop. Now it only boots to EZ Flash BIOS recovery, but this always locks up at the same point (about 75% progress) regardless of which BIOS download I use (I downloaded versions 307 and 308.) I really don't want to send it back to be serviced so I'm looking for another option. I do have a 16MB BIOS dump made after the failure, and I have the two 19MB Asus downloads. I'm given to understand from my brief research that the BIOS region needs to be extracted from one of the downloads and merged into the 16MB dump - after which I'll be able to flash the result back to the BIOS chip with an external programmer. I've looked at the download files in UEFITool but it's all just a bunch of hashes and nothing is labelled in a way that makes any sense. If someone can help provide me with a fix, I'll be happy to PayPal you a $50 thank you for the help!