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I recently upgraded the memory and moved to an SSD on a 15-bs1xx and everything was running great. The last thing that I did was attempt to update the bios to version F.74 Rev.A as per this link https://www.hp.com/hk-en/shop/tech-takes/post/how-to-update-bios-software-on-windows-pcs

 

Everything seemed to update OK and when the machine rebooted I was only able to get to a black screen and after opening it up I can see that the fan is spinning but nothing else is happening. After searching for people with similar problems, i found links from HP and also on YouTube that talk about the process to go back to an earlier version of the bios using a usb recovery drive with an older version of the firmware and pressing the windows key + B or V (or B or V alone) but nothing seems to work with this model.

 

As per this post, it looks like other people have also had the same issue with this laptop model but they were unable to get it resolved - https://h30434.www3.hp.com/t5/Notebook-Boot-and-Lockup/Bios-update-failed/td-p/7205082

 

I have been working on computers for years and have done bios updates many times and this has never happened before. Please let me know what I am missing in order to get this machine to work again.

† The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the <a href="https://www8.hp.com/us/en/terms-of-use.html" class="udrlinesmall">Terms of Use</a> and <a href="/t5/custom/page/page-id/hp.rulespage" class="udrlinesmall"> Rules of Participation</a>.