Black screen after BIOS update is so worrisome that you cannot access your data and operating system.
Most of the time, you have no clue what causes this issue and how to address it.
In this post fromMiniTool Website, some further explorations are listed.

Some of you might encounter black screen after BIOS changes or updates.
How to back up your files when your machine fails to load to the desktop?
It also supportsmoving Windows to another driveandcloning HDD to SSDfor better system performance.

Then,boot your unbootable computer from it.
In theBackuppage, go toSource>Folders and Filesto choose what to backup.
Then, you should probably go to theDestinationsection to select a destination path to store the backup image.
![]()
Click onBack up Nowto start the process at once.
What is data backup and recovery?
Why it is so important?
![]()
How to perform data backup and recovery easily?
Refer to this guide to get the answers now!
How to Fix Black Screen After BIOS Update on Windows 10/11?

Therefore, it’s crucial that you ensure that your monitor and cables are connected properly.
To do so:
Step 1.
Shut down your monitor.

Check the condition of connecting cables and connection points.
If there is any defect, replace the concerned accessories in time.
After that, verify if you hear a beep or not.
If so, it means that your box is responsive and then it will kickstart your graphics driver.
Some of them might be incompatible with your rig and lead to issues like black screen after BIOS update.
Fix 4: reset the CMOS
Step 1.
Shut down your box and then disconnect all peripheral devices.
Disconnect the power connections and remove the computer cover.
Find the battery on the board and then take it out.
Wait for several minutes and then reconnect the battery to the computer.
Put the computer cover back and reconnect the peripherals.
The parts of GPUs like VRAM or capacitors will become damaged, contaminated, or overheated over time.
If your GPU is running for quite a long time, consider buying a new one.
This post will offer you corresponding solutions on that.
Heres how to perform a startup repair:
Move 1: Enter Windows Recovery Environment
Step 1.
Prepare a computer that works normally and a USB flash drive.
Connect your USB drive to the computer and then clickhereto download Windows 10 Installation Media.
Launch the downloaded file and accept all the terms and conditions.
After completion, connect this USB drive to your problematic computer and then boot it from this drive.
Step 6. input your language & other preferences and then click onRepair your computerto enterWindows Recovery Environment.
Move 2: Perform a Startup Repair
Step 1.
In theChoose an optionscreen, click onTroubleshoot.
HitAdvanced optionsand then selectStartup Repairto start diagnosing and fixing some startup problems.
Heres how to repair your boot records:
Step 1.
Boot your equipment into Windows Recovery Environment.
Go toTroubleshoot>Advanced options>Command Prompt.
In the command window, run these commands one by one and dont forget to hitEnterafter each command.
bootrec /scanos
bootrec /fixmbr
bootrec /fixboot
bootrec /rebuildbcd
Step 4.
After completion, start your gear to see if black screen after BIOS update exists.
We Need Your Voice
Thats an end of black screen after BIOS update.