For help with issues such as: wired and wireless networking, Windows, mouse, touchpad, keyboard, LCD, webcam and downloading drivers, refer to an expanding section below.
For specifications, browse to the XPS 7390 Online Manual Page, and then touch or click View PDF under or to the right of XPS 13 7390 2-in-1 Setup and Specifications (refer to the Specifications of XPS 13 7390 2-in-1 section).
For port locations, browse to the XPS 7390 Online Manual Page, and then touch or click View PDF under or to the right XPS 13 7390 2-in-1 Setup and Specifications (refer to the Views of XPS 13 7390 2-in-1 section).
To view or download the Service Manual, browse to the XPS 7390 Online Manual Page, and then touch or click View PDF to the right of XPS 13 7390 2-in-1 Service Manual.
To locate your Service Tag or Express Service Code, browse to the Where is the Service Tag located? page.
For how-to's and troubleshooting information on Wired and Wireless networking, browse to the Dell Networking and Wireless Support Center.
This section covers the Microsoft Windows operating system that is installed on your computer; select the tabs below to find out more information.
For help using Microsoft Windows, refer to the Dell Windows Support Center. You will need to select the operating system you need help with.
When the computer stops responding or you are troubleshooting slow performance issues, perform the following steps:
This link takes you to the Dell Knowledge Base article Microsoft Windows Locks Up or an Error Occurs.
For information on the drivers available, browse to the XPS 7390 Drivers Page.
This article provides information on how to download drivers for Dell computers, How to Download and Install Dell Drivers.
This section covers the hardware that is installed on your computer; select the tabs below to find out more information.
Refer to the following Dell Knowledge Base articles for information on how to use or troubleshoot mouse, keyboard or touchpad issues.
For information on how to turn the touchpad on or off, refer to Dell Knowledge Base article Disabling or Enabling the Touchpad on a Dell Laptop.
Refer to the Dell Knowledge Base article Troubleshooting Touchscreen Issues in Microsoft Windows, for information on resolving Touchscreen issues.
When you experience a situation in which the computer does not start at all, or if it does turn on (lights turn on and fans are spinning) but the computer does not show any image, look at the Battery Charge/Status LED (located on the front of the computer, Figure 1) for a blinking amber/white pattern to determine failures listed in Table 1.
Figure 1: Battery Charge and Status LED Location
The blinking patterns will consist of 2 sets of numbers being represented by a group of Amber blinks, and then a group of White blinks.
First Group: The LED blinks with an Amber color 1 to 9 times, followed by a brief pause with the LED off for 1.5 seconds.
Second Group: The LED blinks with a White color 1 to 9 times, followed by a longer pause before the next cycle starts again with the LED off for 3 seconds.
For example: For a No Memory Detected Error (2,3). The battery LED blinks 2 times with an Amber color, followed by a pause and then blinks 3 times with a White color. The battery LED will pause for 3 seconds before the next cycle repeats itself again. Each LED blink takes 0.5 seconds. The LED's mentioned here refer to all five LED's working together
The computer will not shutdown when displaying the Diagnostic Error Codes.
Diagnostic Error Codes will always supersede any other use of the LED. For instance, on Notebooks, battery codes for Low Battery or Battery Failure situations will not be displayed when the Diagnostic Error Codes are being displayed.
Blinking Pattern |
Component | Description | |
---|---|---|---|
Amber | White | ||
2
|
1
|
CPU | CPU failure |
2
|
2
|
BIOS ROM failure | System board failure (included BIOS corruption or ROM error) Try to flash the BIOS to the latest version. For more information, browse to Dell BIOS Updates (Refer to the How do I update BIOS using a USB flash drive? section). |
2
|
3
|
Memory | No memory / RAM detected |
2
|
4
|
Memory | Memory / RAM failure |
2
|
5
|
Memory | Invalid memory installed |
2
|
6
|
Chipset | System board / Chipset error |
2
|
7
|
LCD | LCD failure |
3
|
1
|
RTC power failure | CMOS battery failure |
3
|
2
|
PCI / Video | PCI or Video card / chip failure |
3
|
3
|
BIOS recovery 1 | Recovery image not found Try to flash the BIOS to the latest version. For more information, browse to Dell BIOS Updates (Refer to the How do I update BIOS using a USB flash drive? section). |
3
|
4
|
BIOS recovery 2 | Recovery image found but invalid Try to flash the BIOS to the latest version. For more information, browse to Dell BIOS Updates (Refer to the How do I update BIOS using a USB flash drive? section). |
3
|
5
|
Power rail | Power rail failure Try to flash the BIOS to the latest version. For more information, browse to Dell BIOS Updates (Refer to the How do I update BIOS using a USB flash drive? section). |
3
|
6
|
BIOS recovery | BIOS Recovery Image not found while performing auto-recovery Try to flash the BIOS to the latest version. For more information, browse to Dell BIOS Updates (Refer to the How do I update BIOS using a USB flash drive? section). |
3
|
7
|
ME Error | Management Engine error during boot. Try to flash the BIOS to the latest version. For more information, browse to Dell BIOS Updates (Refer to the How do I update BIOS using a USB flash drive? section). |
For additional help with your computer, please Contact Technical Support.
When the Battery LED does not blink with an Amber/White pattern, perform the following steps:This section covers the hardware that is installed on your computer; select the tabs below to find out more information.
For information on troubleshooting a laptop LCD Screen, refer to the Dell Knowledge Base article Troubleshooting Display or Video Issues on Dell Laptop LCD Panel.
For help with resolving USB port issues, refer to Dell Knowledge Base article How to Troubleshoot USB Port When it is Not Working.
For information about and help with resolving Hard Drive issues, refer to the Dell Knowledge Base article Understanding and Troubleshooting Your Hard Drive.
Battery Charge and Status LED
The battery charge and status LED indicator is located at the front side of the computer Figure 2. Refer to Table 2 for the description of the LED.
Power Source
|
LED behavior
|
System Power State
|
Battery Charge Level
|
---|---|---|---|
AC Adapter
|
Off
|
S0 - S5
|
Fully Charged
|
AC Adapter
|
White
|
S0 - S5
|
< Fully Charged
|
Battery
|
Off
|
S0 - S5
|
> Low to Fully Charged
|
Battery
|
Solid Amber
|
S0 - S5
|
Low to Critically Low
|
The battery charge/status LEDs include five LEDs. When the computer is plugged into AC and charging, the LEDs illuminate white with various amount of LED's illuminated to indicate the current charge level of the battery, and each LED accounts for approximately 20% charge. When charging is completed, the LEDs turn off. If the computer if already sufficiently charged before being plugged in, all 5 LEDs will turn on and stay on for 2 seconds and then turn off when, it is plugged into AC for charging.
The LED's indicate the following:
LED Gauge Status
|
LED behavior
|
Battery Charge Level
|
---|---|---|
1 LED
|
Solid White
|
0-20%
|
2 LEDs
|
Solid White
|
21-40%
|
3 LEDs
|
Solid White
|
41-60%
|
4 LEDs
|
Solid White
|
61-80%
|
5 LEDs
|
Solid White
|
81-100%
|
For additional information about and help with resolving Battery issues, refer to the Battery Support site.
For information about and help with resolving Audio issues, refer to the Speakers and Headphones Support site.
This section covers the software that may be installed on your computer; select the tabs below to find out more information.
The Dell Windows Backup Media and Recovery Options page provides information about backing up your Windows Operating System as well as recovery options for when Windows does and does not start correctly.
The Dell Download Center provides information about software you may have bought and software that is already installed on your computer, such as Dell Backup Solutions and Dell SupportAssist for PCs and tablets.
Some of the software sold at the time of purchase has to be downloaded once you receive your computer. You can download and install those programs by using Dell Digital Delivery, for more information refer to the following links:
A free PDF reader (Acrobat Reader DC) is available for free from Adobe. You will need this program to view any PDF files such as the Quick Start Guides or Owner's Manuals.
This article provides help with Microsoft Office programs, A Guide to the various Microsoft Office programs available on your Dell PC.
To access the Dell Security and Virus Support Page click on the following link:
Your computer will come pre-installed with an Anti-virus program. For more information refer to the Dell Knowledge Base article Useful Information about the Third Party Anti-virus programs that ship with a Dell PC.
More information about Viruses, Spyware and Malware can be found at the following links: