The Notebook Review forums were hosted by TechTarget, who shut down them down on January 31, 2022. This static read-only archive was pulled by NBR forum users between January 20 and January 31, 2022, in an effort to make sure that the valuable technical information that had been posted on the forums is preserved. For current discussions, many NBR forum users moved over to NotebookTalk.net after the shutdown.
Problems? See this thread at archive.org.

    HP 8710W F.20 Bios Downgrade

    Discussion in 'HP Business Class Notebooks' started by melo12, Jun 10, 2012.

  1. melo12

    melo12 Newbie

    Reputations:
    0
    Messages:
    2
    Likes Received:
    0
    Trophy Points:
    5
    Hi

    The (F.20) and continuous operation of the fan causes the preceding versions of the BIOS. I want to return to the old bios version, but does not allow this.

    Can you help me to downgrade the bios?

    Thanks
     
    melo12, Jun 10, 2012
    #1
  2. StormJumper

    StormJumper Notebook Virtuoso

    Reputations:
    579
    Messages:
    3,537
    Likes Received:
    488
    Trophy Points:
    151
    First off are you sure the vents aren't clogged with dust? Continuous fan operations could be attributed to this if you never taken apart and dusted out your laptop or reapplied the thermal paste to insure it still work??? So when was the last time you did these two things??
     
    StormJumper, Jun 10, 2012
    #2
  3. melo12

    melo12 Newbie

    Reputations:
    0
    Messages:
    2
    Likes Received:
    0
    Trophy Points:
    5
    This has become the device after bios upgrade. Motherboard, cpu and fan, unfortunately did not resolve the problem changed. When you are probably going to be okay Downgrade
     
    melo12, Jun 10, 2012
    #3
  4. User Retired 2

    User Retired 2 Notebook Nobel Laureate NBR Reviewer

    Reputations:
    4,127
    Messages:
    7,860
    Likes Received:
    10
    Trophy Points:
    0
    Once you flash F.20 onto your system you cannot flash back to an older version. This detail is included in the instructions that come with F.20.

    So the way to get back would be either:

    1. Ask HP for a systemboard replacement if you are still under warranty.

    2. Physically remove the flash eprom and solder on a programmed one with an older bios than F.20. Unfortunately Grains BIOS repair do not offer a pre-programmed 8510W chip so would need to find some other way of copying a pre-F.20 chip onto an eprom chip for soldering onto your system.

    Can thank HP for deliberately doing this to prevent users enjoying the benefits that modified bios brings without needing to upgrade their system. Ie: dual-IDA, no whitelist, SLIC 2.1.
     
    User Retired 2, Jun 13, 2012
    #4