Apa maksud fix bios crisis recoverifunction can't work

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The BIOS Recovery tool is designed to recover a corrupted BIOS (this often displays as a POST or boot issue). They are based on Boot Block Technology. The BIOS Recovery 2 (BR2) software's main feature is to provide the flexibility to recover a corrupted BIOS using a BIOS recovery file from the computer's primary hard disk drive or an external USB drive. While the BIOS Recovery 3 (BR3) software adds a computer start-up check, that can be enabled in the BIOS to add an autorecovery capability to the BIOS recovery process.

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A corrupt BIOS is one of the possible causes of a computer unable to complete POST or boot into the operating system. If the Dell computer or tablet supports BIOS recovery 2 or 3, you can recover the corrupt BIOS by using the recovery method that is detailed below for your Dell computer or tablet.

NOTE: BIOS recovery is not supported on all Dell computers. See the FAQ section for a detailed list of Dell computers and tablets that support the BIOS recovery.

While BIOS Recovery 2 (BR2) and BIOS Recovery 3 (BR3) is supported on Dell desktops, all-in-one computers, laptops, convertible and detachable computers such as Dell XPS 12 and Dell tablets. There are different methods to initiate a BIOS recovery on these devices. BIOS recovery can be started using:

• Key sequence
• Button sequence

BIOS Recovery 2

• Supports recovery from your computers primary hard drive and from an external USB drive.
• Recovery from your computers primary hard drive is enabled by default within the BIOS Setup. (It can be disabled if you choose, but this is not recommended.)
• Recovery from the external USB drive cannot be disabled in the BIOS Setup. Enabled by default.
• The default search location for the BIOS recovery image is the external USB drive, if a USB drive is present. If an image is not found on the USB drive or the USB drive is absent, the BIOS then searches the primary hard drive for the recovery image. The search terminates if no recovery image is found, see the FAQ section.
• The FAQ section answers questions regarding issues that you may encounter during an unsuccessful BIOS recovery.

NOTE:

• BIOS recovery 2 can be initialized using the integrated keyboard on Dell laptops and does not support external keyboard for laptops.
• BIOS recovery 2 can be initialized on Dell desktops using the standard USB keyboard. Bluetooth keyboards work if BIOS has POST support for system-specific Bluetooth keyboards. However, Bluetooth keyboards are not recommended for use when attempting BIOS recovery.
• BIOS recovery can be initialized on Dell tablets using the physical buttons that are available on the tablet.
• BIOS recovery can be initialized on Dell convertible or detachable computers using both external keyboard or physical buttons that are available on the computer.
• BIOS recovery cannot be initialized using the touch screen of the device.

• BIOS recovery 3 is an improvement on BIOS recovery 2. It has all the same features, with an added feature that allows for autorecovery to start during boot if an integrity check that has to be enabled in the BIOS (Default is Disabled) fails and there is a recovery image on the hard drive. Autorecovery is not possible from other media.

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BIOS recovery feature is available on select Dell desktop, laptop, all-in-one, tablet, or convertible (detachable) computers. This feature can help recover a computer from a power-on self-test (POST) or boot issue that is caused by a corrupt BIOS.

NOTE: The BIOS recovery process does not depend on the operating system that is installed on the computer. BIOS recovery feature is available on select Dell desktops, all-in-ones, laptops, tablets, and convertibles. To learn more, see the table in the Frequently asked questions section.

1. Restart the computer.
2. Press and hold the CTRL + ESC key on the keyboard until the BIOS Recovery page appears.
3. On the BIOS Recovery screen, select Reset NVRAM (if available) and press the Enter key. Select Disabled and press the Enter key to save the current BIOS settings.
4. Select Recover BIOS and press the Enter key to start the recovery process.

   NOTE: Your Dell computer may restart a few times during the process of BIOS recovery.

The CTRL + ESC key combination can be used to trigger BIOS recovery on computers where an external keyboard is the primary input. This applies to Dell desktops, all-in-one computers, and laptops. The supported keyboard types on these devices are:

• PS/2 keyboard
• USB keyboard
• Bluetooth keyboard - If BIOS has POST support for system-specific Bluetooth keyboard. Dell recommends using a USB keyboard for the BIOS recovery process.

Before you begin the BIOS Recovery, ensure that the battery of the Dell laptop is charged up to at least 10%.

1. Verify that the laptop is turned off and disconnect the AC adapter.
2. Press and hold the CTRL + ESC key on the keyboard.
3. Connect the AC adapter to the laptop.
4. Release the CTRL + ESC key on the keyboard after you see the BIOS recovery screen.
5. On the BIOS Recovery screen, select Reset NVRAM(if available) and press the Enter key. Select Disabled and press the Enter key to save the current BIOS settings.
6. Select Recover BIOS and press the Enter key to start the recovery process.

   NOTE: Your Dell computer may restart a few times during the process of BIOS recovery.

NOTE: This works slightly differently for Alienware laptops. Follow the steps below instead.

1. Turn off the computer, and disconnect the AC adapter.
2. Press and hold the CTRL and ESC keys together, and go to the next step.
3. Connect the AC adapter cable, and press the power button on the laptop.
4. Release the CTRL and ESC keys when the power button LED is lit.
5. Select Recover BIOS and press the Enter key to start the recovery process.

Before you begin the BIOS Recovery, ensure that the battery of the Dell tablet is charged up to at least 50%.

1. Verify that the tablet is turned off and disconnect the AC adapter.
2. Press and hold the Volume down button.
3. Connect the AC adapter to the tablet.
4. Release the Volume down button.
5. On the BIOS Recovery screen, select Reset NVRAM (if available) and press Enter. Select Disabled and press Enter to save the current BIOS settings.
6. Select Recover BIOS and press Enter to start the recovery process.

   NOTE: Your Dell tablet may restart a few times during the process of BIOS recovery.

Convertible and detachable Dell computers support both the following methods where touch is the primary input.

Method 1: Key sequence

1. Verify that the device is turned off and disconnect the AC adapter.
2. Press and hold the CTRL + ESC key on the keyboard.
3. Connect the AC adapter to the device.
4. Release the CTRL + ESC key on the keyboard.
5. On the BIOS Recovery screen, select Reset NVRAM (if available) and press the Enter key. Select Disabled and press the Enter key to save the current BIOS settings.
6. Select Recover BIOS and press the Enter key to start the recovery process.

   NOTE: Your Dell computer may restart a few times during the process of BIOS recovery.

Method 2: Button sequence

1. Verify that the tablet is turned off and disconnect the AC adapter.
2. Press and hold the Volume down button.
3. Connect the AC adapter to the tablet.
4. Release the Volume down button.
5. On the BIOS Recovery screen, select Reset NVRAM (if available) and press Enter. Select Disabled and press Enter to save the current BIOS settings.
6. Select Recover BIOS and press Enter to start the recovery process.

   NOTE: Your Dell computer may restart a few times during the process of BIOS recovery.

NOTE: BIOS Recovery cannot be triggered using the touch screen of the convertible or detachable Dell computer.

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Here are some answers to frequently asked questions about BIOS recovery.

NOTE: Click the title of the section you want to open below, in order to see the contents.

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NOTE: Offers are only available for US, Canada, UK, France, Germany, and China personal computer customers. Server and Storage not applicable.

Chromebox, Alienware, Inspiron, OptiPlex, Vostro, XPS, G Series, Chromebook, G Series, Alienware, Inspiron, Latitude, Vostro, XPS, Latitude Tablets, Venue, XPS Tablets, Fixed Workstations, Mobile Workstations

Last Published Date

16 Aug 2021

Version

9

Article Type

Solution

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