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.

Latitude E6400, Bios Downgrade A28->A27

Discussion in 'Dell Latitude, Vostro, and Precision' started by SH_P, Apr 9, 2011.

Thread Status:
Not open for further replies.
  1. SH_P

    SH_P Notebook Enthusiast

    Reputations:
    0
    Messages:
    24
    Likes Received:
    0
    Trophy Points:
    5
    Recently, When I hibernate Win 7, sometimes the hibernate process doesn't complete successfully (screen goes blank with no HDD activity and I must turn off my laptop by holding the power button) . I reinstall windows and I still have the problem. I think it may be caused by upgrading the BIOS to A28, since I didn't have this issue before upgrade.

    I also run Dell Diagnosis and there were no hardware problem.

    1. Does anyone have similar problem?
    2. Is it safe to downgrade from A28 to A27? (How can I verify that the bios downgrade is done properly?)

    Specs
    CPU: T9550
    RAM 4 GB DDR2
    HDD: Seagate 250- 7200rpm
    Win 7 SP1- Ultimate

    Thanks...!
     
    SH_P, Apr 9, 2011
    #1
  2. John Ratsey

    John Ratsey Moderately inquisitive Super Moderator

    Reputations:
    7,197
    Messages:
    28,839
    Likes Received:
    2,154
    Trophy Points:
    581
    Just run the A27 BIOS installer. Unlike some manufacturers, Dell allows downgrades as well as upgrades. After the installation the BIOS screen should show A27.

    John
     
    John Ratsey, Apr 9, 2011
    #2
  3. benamar

    benamar Notebook Enthusiast

    Reputations:
    0
    Messages:
    13
    Likes Received:
    0
    Trophy Points:
    5
    I have the same experience with my own E6400. I upgraded from A21 to A28 and thought it was something else...
     
    benamar, Apr 9, 2011
    #3
  4. wrx

    wrx Notebook Enthusiast

    Reputations:
    0
    Messages:
    41
    Likes Received:
    0
    Trophy Points:
    15
    A26 also crashes for me sometimes.
     
    wrx, Apr 11, 2011
    #4
  5. SH_P

    SH_P Notebook Enthusiast

    Reputations:
    0
    Messages:
    24
    Likes Received:
    0
    Trophy Points:
    5
    So, Upgrade it to A27 and see if the problem solve...
     
    SH_P, Apr 11, 2011
    #5
Loading...
Similar Threads - Latitude E6400 Bios
  1. aaxx

    Laptop choice: Latitude 15 7520/Lenovo Thinkpad E/T15/ASUS Expertbook B1 B1500

    aaxx, Jan 6, 2022, in forum: What Notebook Should I Buy?
    Replies:
    4
    Views:
    265
    ZaZ
    Jan 6, 2022
  2. artur1884

    Latitude e6230 black screen on startup

    artur1884, Dec 25, 2021, in forum: Dell Latitude, Vostro, and Precision
    Replies:
    5
    Views:
    622
    artur1884
    Jan 2, 2022
  3. rockmaster113

    Latitude E6420 - Problem with SSD, looking for some help.

    rockmaster113, Nov 13, 2021, in forum: Dell Latitude, Vostro, and Precision
    Replies:
    1
    Views:
    540
    rockmaster113
    Nov 17, 2021
  4. bananam8nuk

    latitude 3310 2-in-1 m.2 drive upgrade

    bananam8nuk, Aug 20, 2021, in forum: Dell Latitude, Vostro, and Precision
    Replies:
    0
    Views:
    632
    bananam8nuk
    Aug 20, 2021
Thread Status:
Not open for further replies.

Share This Page