Fix battery stuck at 99 percentage while charging || Firmware Update|| Flash BIOS System Dell Laptop
Dell Official Laptop||Firmware Update||Flash BIOS System||Fix battery stuck at 99 percentage while charging||Laptop battery stuck at certain % ||
Laptop Battery Solution Freezing at 99% || Dell Vostro 3400 Bios update 99% Freezing.....
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Introduction to BIOS;
BIOS also called System Setup is an acronym for Basic Input or Output System. Modern Dell computers come with Unified Extensible Firmware Interface (UEFI). BIOS or UEFI is firmware that is embedded on a small memory chip on the computer's system board or motherboard. It acts as an interface between the computer's hardware and the operating system.
The BIOS or UEFI activates all the basic hardware that is required to boot the operating system when the computer is turned on. This includes but is not limited to:
1. Chipset
2. Processor and cache
3. System memory or RAM
4. Video and audio controllers
5. Keyboard and mouse
6. Internal disk drives
7. Network controllers
8. Internal expansion cards
To access the BIOS or System Setup on Dell computers, follow these steps.
Press the F2 key several times at the Dell logo screen during startup.
Or, press the F12 key several times at the Dell logo screen during startup, and select BIOS Setup or System Setup from the menu.
NOTE: The BIOS or UEFI interface may differ between different Dell computers. To learn how to navigate or about the different settings available in the BIOS or UEFI, see the documentation of your Dell computer.
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How to update the BIOS or UEFI on a Dell computer ability.
Dell provides an easy-to-use self-installing BIOS update utility. Critical BIOS updates are also pushed through Windows Update.
WARNING: Ensure to back up your data before attempting to update the BIOS. Errors during a BIOS update may result in potential loss of data.
WARNING: Disconnect devices such as external USB drives, printers, and scanners before updating the BIOS on the computer.
WARNING: Dell laptop battery must be charged to at least 10% before you begin updating the BIOS. Dell Technologies recommends running the laptop on AC power before proceeding with the update process.
CAUTION: Disable BitLocker before proceeding to update the BIOS on the Dell computer. If BitLocker is not suspended, the next time you reboot the computer it will not recognize the BitLocker key. You are prompted to enter the recovery key to progress, and the computer asks for the recovery key on each reboot. If the recovery key is unknown, this can result in data loss or unnecessary operating system reinstallation.
NOTE: You must be logged in as an administrator to install the BIOS update on your Dell computer.
NOTE: You must be logged in as an administrator to download and install the SupportAssist app on your Dell computer.
NOTE: Gradually update the BIOS version, if the BIOS version that is installed on your computer is out of date by more than two versions. It avoids compatibility issues. Learn how to check the BIOS version on your computer.
Before you begin, temporarily suspend BitLocker protection in Windows. Learn How to Enable or Disable BitLocker with TPM in Windows. BitLocker protection resumes automatically when the computer is restarted.
Browse to https://www.dell.com/support/drivers.
Identify your Dell computer.
Click Download and Install SupportAssist to auto-detect your Dell computer. Follow the on-screen instructions to install Dell SupportAssist.
Or, enter the Service Tag, Express Service Code, or the Serial number of the Dell computer and click Search.
Or, click Browse all products to manually select your Dell computer from the catalog.
Select the Operating System that is installed on the computer.
Under Category, select BIOS.
Locate the latest System BIOS.
Click Download and save the file to your computer.
Using File Explorer (also known as Windows Explorer), browse to the location where the downloaded file was saved.
Double-click the downloaded BIOS setup file and follow the on-screen instructions to complete the installation process.
The computer restarts and completes the BIOS update process.
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It might be because of 2 reasons.
1. Bios is not updated:/ So first of all go to dell official website. Download & Install the drive and check. If issue not fixed then run ePSA test and check for the error.
2. If yet issue not fixed then it might be issue with charger or charging port (DC-In.
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