Troubleshooting
Flashing the BIOS
You may need to flash (update) the BIOS when an update is available or when you replace the system board.
Follow these steps to flash the BIOS:
1
Turn on your computer.
2
Go to
.
3
Click
Product support
, enter the Service Tag of your computer, and then click
Submit
.
NOTE:
If you do not have the Service Tag, use the auto-detect feature or manually browse for your computer model.
4
Click
Drivers & downloads
>
Find it myself
.
5
Select the operating system installed on your computer.
6
Scroll down the page and expand
BIOS
.
7
Click
Download
to download the latest version of the BIOS for your computer.
8
After the download is complete, navigate to the folder where you saved the BIOS update file.
9
Double-click the BIOS update file icon and follow the instructions on the screen.
Reinstall Windows using a USB recovery drive
CAUTION:
This process formats the hard drive and removes all data on your computer. Ensure that you back up data on your
computer before beginning this task.
NOTE:
Before reinstalling Windows, ensure your computer has more than 2 GB of memory and more than 32 GB of storage
space.
NOTE:
This process may take up to an hour to complete and your computer will restart during the recovery process.
1
Connect the USB recovery drive to your computer.
2
Restart your computer.
3
Press F12 after the Dell logo is displayed on the screen to access the boot menu.
A
Preparing one-time boot menu
message appears.
4
After the boot menu loads, select the USB recovery device under
UEFI BOOT
.
The system reboots and a screen to
Choose the keyboard layout
is displayed.
5
Choose your keyboard layout.
6
In the
Choose an option
screen, click
Troubleshoot
.
7
Click
Recover from a drive
.
8
Choose one of the following options:
•
Just remove my files
to do a quick format.
•
Fully clean the drive
to do a complete format.
9
Click
Recover
to start the recovery process.
39
Troubleshooting
79
Summary of Contents for Inspiron 3470
Page 15: ...Removing the front bezel 15 ...
Page 17: ...Post requisites Replace the computer cover Replacing the front bezel 17 ...
Page 30: ...30 Removing the optical drive ...
Page 34: ...34 Removing the memory modules ...
Page 36: ...4 Replace the computer cover 36 Replacing the memory modules ...
Page 40: ...40 Removing the wireless card ...
Page 43: ...Removing the solid state drive 43 ...
Page 48: ...48 Removing the power button module ...
Page 61: ...Removing the system board 61 ...
Page 78: ...Post requisites Replace the computer cover 78 System and setup password ...