my acer aspire e15 es1-512-c78t screen will not work at start up during the bias system screens then works once windows starts

Sep 5, 2018
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my acer aspire e15 es1-512-c78t screen will not work at start up during the bias system screens then works once windows starts to load. but it will show me the bias system when plugged in threw hdmi but only on the external screen
 
So you can't see BIOS.

Try this...

You will need to disable "Fast Boot/Startup" from the power button menu. The power button can be used if you encounter Fast Boot/Startup problems.

1. Make sure the laptop is turned off. Not in Hibernate or Sleep mode.

2. Press the power button and hold it down. The system should emit three short beeps from the speaker, or headphones if you have them plugged in.

3. After the beeps, release the power button 'before' the 4-second shutdown override.

4. The power button menu should now display.

5. Press F3 to disable Fast Boot/Startup and you should be able to access BIOS now.

To enable Fast Startup:

1. When the laptop boots up, enter the BIOS setup by pressing "F2".
2. Now go to the "Boot Configuration menu".
3. Choose the "Enable Fast Boot/Startup".
4. Press F10 to save the changes and exit.

 
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