Hardware

  • Gigabyte Motherboard DualBIOS Reflash from Backup BIOS

    I have had a case of a Gigabyte motherboard constantly rebooting after flashing the BIOS, probably due to some sort of corruption. In this instance the Gigabyte UEFI DualBIOS screen would appear with a blue background but then immediately reboot. And tt kept doing this over and over again. Here's something I found that works to get the computer booting properly, by reflashing the Main BIOS from the Backup (previous version) BIOS:
     

    According to the BIOS Chip datasheet it is possible to prohibit reading from and writing to the chip by connecting pins 7 (#HOLD) to the ground. The trick is to disable the main chip and re-enabling it as soon as the backup BIOS loads. N.B. The chips are rather small and connecting wrong pins may damage the MB.

    Each BIOS chip has 8 pins. Pin 1 is marked with blue dot in the left lower corner of each chip. The pins are numbered around the chip, going counterclockwise from the blue dot. See the photo for an example.

    The procedure is straight forward:

    • gigabyte mb bios chips highlightWith a "multi meter lead" connected anywhere to the GND (Chassi) and the sharp end touching pin 7 of the main BIOS CHIP (M_BIOS in the photo), power up the system. (it is like connecting pin 4(GND) and 7(#HOLD)).
    • Wait until the old BIOS shows up, memory test, welcome screen or the DuaBOOT blue screen after the 3 cycles start.
    • Then release pin 7. The backup BIOS shall detect that the main BIOS does not match the backup and will re-flash the main BIOS with the backup BIOS automatically.
    • The system will be rebooted with the main BIOS.

     source: http://www.tomshardware.com/answers/id-2834565/computer-shows-gigabyte-uefi-dual-boot-blue-screen-reboots-constantly.html

  • HP Elite x2 1012 G1 Keyboard not working

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    I have had the keyboard for my HP Elite x2 1012 G1 stop working. These are the steps to fix the unresponsive keyboard:
     
    • Shutdown the x2 (off, not suspended/sleeping)
    • Disconnect the keyboard from the x2
    • Press the ON/OFF button for 30 seconds (at least).
    • Release the ON/OFF button.
    • Attach the keyboard.
    • Power on the x2.
    • Keyboard works!
     
  • Insydeflash BIOS Password Removal

    Ever had a laptop with a BIOS password that you don't know or can't remember?
     
    If it's an Insydeflash* flash ROM then try this:
     
    1. Download the appropriate BIOS from the manufacturers website.
    2. With the powercord plugged in, remove the battery.
    3. Run the downloaded Flash exe file (it might be zipped)
    4. It (should) get to the point of saying that the battery is not at correct level. DO NOT press <ENTER> yet.
    5. While the above info window is showing, swap to a File Explorer window (or start File Explorer) and goto %TEMP% or C:\WINDOWS\TEMP
    6. There should be a Winflash folder in there. Copy it over to somewhere else (Downloads?).
    7. Then swap back to the Winflash info window and press <ENTER> to close the Winflash program.
    8. Back in the File Explorer window with the Winflash folder now copied to Downloads - open that folder.
    9. In that folder is a settings file - mine was called 'platform.ini'. Open this in Notepad.
    10. Find the section titled [ForceFlash]
    11. In that section is a Password=0. Change it to Password=1
    12. You might like to also find the BatteryCheck=1 (under section [AC_Adapter]) and change that to BatteryCheck=0. This will disable the Battery checking - N.B. make sure the power is stable though because you will be flashing the BIOS update.
    13. Save the settings file.
    14. Now manually run the Insydeflash.exe program (within the Winflash folder). And allow the program to update the BIOS.
    15. Once done the laptop will restart. You will then be able to get into the BIOS with no password.
     
    This process may work with other flash programs as well. Sometimes the original flash exe can be extracted with something like 7zip, without having to run it initially.
     
    * A number of Acer laptops have an Insydeflash flash ROM. And many other manufacturers too.