Contents 1 Working on your computer......................5 Safety instructions................................5 Turning off your computer............................. 5 Before working inside your computer........................... 6 Safety Precautions................................6 After working inside your computer..........................12 2 Technology and components......................13 UEFI BIOS..................................... 13 DDR4......................................14 Graphic options..................................15 HDMI 1.4a....................................
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Diagnostic LEDs................................... 74 M-BIST....................................74 Self-Heal....................................75 Course Introduction...............................75 Self-Heal Instruction..............................75 Supported Latitude Models............................75 BIOS recovery..................................76 BIOS recovery using hard drive........................... 76 BIOS recovery using USB drive............................77 LCD Built-in Self Test .................................77 6 Getting help and contacting Dell....................79 Contents...
Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came with the product.
Standby Power Dell products with standby power must be completely unplugged before the case is opened. Systems that incorporate standby power are essentially powered while turned off. The internal power enables the system to be remotely turned on (wake on LAN), suspended into a sleep mode, and have other advanced power management features.
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Due to the increased density of semiconductors used in recent Dell products, the sensitivity to static damage is now higher than in earlier Dell products. For this reason some previously approved methods of handling parts are no longer applicable.
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Figure 3. Chassis "Bare Metal" Grounding (Unacceptable) • Handle all static-sensitive components in a static-safe area. If possible, use anti-static floor pads and workbench pads. • When handling static-sensitive components, grasp them by the sides, not the top. Avoid touching pins and circuit boards. •...
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Figure 5. Anti-Static Mat The wrist strap and bonding wire can be either directly connected between your wrist and bare metal on the hardware if the ESD mat is not required, or connected to the anti-static mat to protect hardware that is temporarily placed on the mat. The physical connection of the wrist strap and bonding wire between your skin, the ESD mat, and the hardware is known as bonding.
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Figure 6. Wrist Strap Tester Insulator Elements It is critical to keep ESD sensitive devices, such as plastic heat sink casings, away from internal parts that are insulators and often highly charged. Table 2. Placement of Insulator Elements Unacceptable — DIMM lying on an insulator part (plastic Acceptable —...
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Figure 7. ESD Packaging Transporting Sensitive Components When transporting ESD-sensitive components such as replacement parts or parts to be returned to Dell, it is critical to place these parts in anti-static bags for safe transport. ESD Protection Summary It is strongly suggested that all field service engineers use the traditional wired ESD grounding wrist strap and protective anti-static mat at all times when servicing Dell products.
After you complete any replacement procedure, ensure that you connect external devices, cards, and cables before turning on your computer. CAUTION: To avoid damage to the computer, use only the battery designed for this particular Dell computer. Do not use batteries designed for other Dell computers. Steps 1.
UEFI is the way applications are coded. Assembler was used if functions or applications had to be coded for the BIOS while a higher level language code will be used to program the UEFI. Dell UEFI BIOS implementation will supersede the existing two different sets of BIOS in the portables and desktop products into one single UEFI BIOS moving forward.
DDR4 DDR4 (Double Data Rate fourth generation) memory is a higher-speed successor to the DDR2 and DDR3 technologies and allows up to 512 GB in capacity, compared to the DDR3's maximum of 128 GB per DIMM. DDR4 synchronous dynamic random-access memory is keyed differently from both SDRAM and DDR to prevent the user from installing the wrong type of memory into the system.
System Ports- Three displays max with LCD plus one display max on each output (HDMI, DisplayPort over USB Type-C). NOTE: A USB Type C Dell dock is optional. HDMI 1.4a This topic explains the HDMI 1.4a and its features along with the advantages.
• 4K Support - Enables video resolutions far beyond 1080p, supporting next-generation displays that will rival the Digital Cinema systems used in many commercial movie theaters. • HDMI Micro Connector - A new, smaller connector for phones and other portable devices, supporting video resolutions up to 1080p. •...
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Table 5. USB evolution Type Data Transfer Rate Category Introduction Year USB 2.0 480 Mbps High Speed 2000 USB 3.0/USB 3.1 Gen 1 5 Gbps SuperSpeed 2010 Port USB 3.0/USB 3.1 Gen 1 (SuperSpeed USB) For years, the USB 2.0 has been firmly entrenched as the de facto interface standard in the PC world with about 6 billion devices sold, and yet the need for more speed grows by ever faster computing hardware and ever greater bandwidth demands.
Similarly, USB 3.0/USB 3.1 Gen 1 connections will never achieve 4.8Gbps. We will likely see a real-world maximum rate of 400MB/s with overheads. At this speed, USB 3.0/USB 3.1 Gen 1 is a 10x improvement over USB 2.0. Applications USB 3.0/USB 3.1 Gen 1 opens up the laneways and provides more headroom for devices to deliver a better overall experience. Where USB video was barely tolerable previously (both from a maximum resolution, latency, and video compression perspective), it's easy to imagine that with 5-10 times the bandwidth available, USB video solutions should work that much better.
Downloading Windows drivers Steps 1. Turn on the laptop. 2. Go to Dell.com/support. 3. Click Product Support, enter the Service Tag, and then click Submit. NOTE: If you do not have the Service Tag, use the auto detect feature or manually browse for your laptop model.
Command | Configure Graphical User Interface The Dell Command | Configure Graphical User Interface (Command | Configure GUI) displays all Basic Input/Output System (BIOS) configurations supported by Command | Configure. Using the GUI, you can perform the following tasks: •...
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The Command | Configure GUI is supported only on systems running the Windows operating system. To launch the GUI, click Start > All Programs > Dell > Command Configure > Configuration Wizard or double-click the Dell Configuration Wizard on the desktop. The below screen appears:...
Disassembly and reassembly Base cover Removing the base cover Prerequisites 1. Follow the procedure in Before working inside your computer. About this task The figure indicates the location of the base cover and provides a visual representation of the removal procedure. Disassembly and reassembly...
Steps 1. Remove the ten (M2.5x5) captive screws that secure the base cover to the laptop. 2. Pry the base cover starting from the recess at the hinge area and work your way around. 3. Lift the base cover away from the laptop. Installing the base cover Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure.
Steps 1. Place the base cover on the palmrest and keyboard assembly, and snap the base cover into place. 2. Replace the ten (M2.5x5) captive screws to secure the base cover to the laptop. Next steps 1. Follow the procedure in After working inside your computer.
Steps 1. Peel off the adhesive tape and release the battery cable from the latch. 2. Remove the four (M2x3) screws that secure the battery. 3. Lift the battery off the laptop. Installing the battery Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task The figure indicates the location of the battery and provides a visual representation of the installation procedure.
Next steps 1. Install the base cover. 2. Follow the procedure in After working inside your computer. Memory modules Removing the memory modules Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the base cover. 3. Remove the battery cable.
Steps 1. Peel the adhesive tape, above the memory module, to a 90-degree angle. 2. Using your finger tips gently pry the retention clips away from the memory module until the memory module pops up. 3. Slide and remove the memory module from the memory module slot on the system board. Installing the memory modules Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure.
NOTE: If you do not hear the click, remove the memory module and reinstall it. Next steps 1. Install the battery cable. 2. Install the base cover. 3. Follow the procedure in After working inside your computer. Solid state drive Removing the M.2 2230 solid-state drive Prerequisites 1.
About this task The figure indicates the location of the SSD support bracket and provides a visual representation of the replace procedure. Steps 1. Slide and remove the SSD support bracket from the support bracket slot. 2. Depending on the type of solid-state drive (M.2 2230/ M.2 2242/ M.2 2280), align and insert the SSD support bracket into the support bracket slot.
Steps 1. Align and slide the solid-state drive into the slot. 2. Replace the single (M2x3) screw to secure the solid-state drive module to the palmrest and keyboard assembly. Next steps 1. Install the battery cable. 2. Install the base cover.
Steps 1. Disconnect the coin-cell battery cable from the system board. 2. Remove the coin-cell battery cable from the routing guide. 3. Peel the coin-cell battery off the palmrest assembly as the coin-cell is affixed to the board with an adhesive. Installing the coin-cell battery Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure.
Steps 1. Re-adhere the coin-cell battery to the slot on the palmrest assembly. 2. Route the coin-cell battery cable through the routing guide. 3. Connect the coin-cell battery cable to the system board. Next steps 1. Install the battery. 2. Install the base cover.
Steps 1. Remove the single (M2x3) screw that secures the WLAN bracket to the computer. 2. Remove the WLAN bracket. 3. Disconnect the WLAN antenna cables from the WLAN module. 4. Slide and remove the WLAN card from the WLAN card slot. Installing the WLAN card Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure.
Next steps 1. Install the battery cable. 2. Install the base cover. 3. Follow the procedure in After working inside your computer. Speakers Removing the speakers Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the base cover.
Steps 1. Locate the speakers on your computer. 2. Disconnect the speaker cable from the connector on the system board. 3. Peel the adhesive tape that secures the speaker cable. 4. Unroute the speaker cables from the retention clips on the computer. 5.
3. Connect the speaker cable to the connector on the system board. 4. Route the speaker cables through the retention clips on your computer. 5. Adhere the adhesive tape to secure the speaker cable. Next steps 1. Install the battery. 2.
Installing the heatsink assembly Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task The figure indicates the location of the heatsink and provides a visual representation of the installation procedure. Steps 1.
About this task The figure indicates the location of the system fan and provides a visual representation of the removal procedure. Steps 1. Locate the system fan on your computer. 2. Unroute the cable and release the wireless cable. 3. Disconnect the system fan cable from the connector on the system board. 4.
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Steps 1. Locate the system fan slot on your computer. 2. Align and place the system fan into the slot on the palmrest assembly. 3. Replace the two (M2x3) screws to secure the system fan to the palmrest assembly. 4. Connect the system fan cable to the connector on the system board. 5.
I/O board Removing the input and output board Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the base cover. 3. Remove the battery. About this task The figure indicates the location of the input and output board and provides a visual representation of the removal procedure. Steps 1.
5. Lift the I/O board out of the computer. Installing the input and output board Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task The figure indicates the location of the input and output board and provides a visual representation of the installation procedure. Steps 1.
Next steps 1. Install the battery. 2. Install the base cover. 3. Follow the procedure in After working inside your computer. DC-in port Removing the DC-in Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the base cover.
Steps 1. Locate the DC-in port on your computer. 2. Remove the single (M2x3) screw and lift metal bracket covering the display connector. 3. Remove the three (M2.5x5) screws and lift the hinge. 4. Disconnect the DC-in cable from the computer and remove the single (M2x3) screw. 5.
3. Install the three (M2.5x5) screws and fix the DC-in metal bracket. 4. Install the (M2x3) screw and fix the metal bracket covering the display connector. Next steps 1. Install the battery. 2. Install the base cover. 3. Follow the procedure in After working inside your computer.
Installing the world-facing camera Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task The figure indicates the location of the world-facing camera on the plamrest and provides a visual representation of the removal procedure.
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About this task The figure indicates the location of the touchpad and provides a visual representation of the removal procedure. Disassembly and reassembly...
Steps 1. Locate the touchpad on your computer. 2. Open the latch and disconnect the keyboard transfer cable from the system board. 3. Open the latch and disconnect the touchpad cable from the connector. 4. Peel off the transparent adhesive tapes. 5.
Steps 1. Locate the touchpad on your computer. 2. Open the latch and connect the keyboard transfer cable to the system board. 3. Affix back the adhesive tapes. 4. Install the three (M2x2) screws that secure the touchpad bracket and align the bracket into the palmrest. 5.
Steps 1. Locate the system board on your computer. 2. Remove the single (M2x3) screw and lift metal bracket covering the display connector. 3. Remove the three (M2.5x5) screws and lift the hinge. 4. Peel off the adhesive tape and remove the touchscreen cable from the latch. Lift the ED cable and remove the display cable from the latch on the system board.
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About this task The figure indicates the location of the system board and provides a visual representation of the installation procedure. Disassembly and reassembly...
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Steps 1. Locate the system board slot on your computer. 2. Slide the ports on the system board into the slots on the palm-rest and keyboard assembly and align the screw holes on the system board with the screw holes on the palm-rest and keyboard assembly. 3.
Display assembly Removing the display assembly Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the base cover. 3. Remove the battery. 4. Remove the WLAN card. About this task The figure indicates the location of the display assembly and provides a visual representation of the removal procedure. Disassembly and reassembly...
Steps 1. Locate the display hinges on your computer. 2. Remove the six (M2.5x5) screws that secure the display hinges to the chassis of your computer. 3. Open the display hinges at an angle of 90 degrees and slightly open the display. 4.
Steps 1. Place the display assembly on a clean and flat surface. 2. Align and place the palmrest and keyboard assembly on the display assembly. 3. Using the alignment posts, close the display hinges. 4. Connect the display cable to the system board and adhere the tape to secure the display cable. 5.
About this task The figure indicates the location of the LCD panel and provides a visual representation of the removal procedure. Steps 1. Use a plastic scribe to pry from the recess at the hinge area. 2. Work your way around pry from all the sides. 3.
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Steps 1. Align the LCD panel to the back cover. 2. Angle the hinges and install the hinges on the back cover. NOTE: Ensure that the hooks on the top of the display panel assembly are inserted prior before snapping the sides of the assembly in place.
Diagnostics This chapter details the built in troubleshooting features to diagnose the Dell systems. It also lists the invoking instructions along with related information for each diagnostics method. Topics: • ePSA Diagnostics • WiFi power cycle • Diagnostic LEDs •...
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ePSA Advanced Screen The advanced screen allows more directed testing and contains more detailed information about the overall health of the system. The user can get to this screen by simply swiping a finger to the left on touchscreen systems or clicking the next page button on the lower right hand side of the basic screen.
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2. Select the device from the left pane and click Run Tests or use Advanced Option to include or exclude any test. ePSA Error Messages When the Dell ePSA Diagnostic detects an error while running, it will pause the test and the following window is displayed: Diagnostics...
• By responding Retry, the diagnostic will ignore the error and rerun the last test. Capture the error code with Validation code or Scan QR code and Contact Dell. NOTE: As part of the new feature, user can now mute the beeping sound code when there is an error by clicking on at the bottom right side of the error window.
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2. Navigate to Online ePSA Validation Tool. 3. Enter error code, validation code, and service tag. Part serial number is optional. NOTE: For error code, use only the last 3 or 4 digits of the code. (user can enter 0142 or 142 instead of 2000–0142.) 4.
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Results Valid Error Code Example After entering the correct information, the online tools will direct the user to the above screen which contains information on : Diagnostics...
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Confirmation of the error code and result outcome • Suggested Part Replacement • If customer is still covered under Dell Warranty • Case reference number if there is an open case under the service tag Invalid Error Code Example QR APP Validation Tool About this task Besides using the online tool, customers can also validate the error code by scanning the QR code with a QR APP a smartphone.
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3. The QR code scanner application will scan the code and automatically generate a link. Click the link to proceed. Diagnostics...
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Results The link generated will take the customer to the Dell Support website which contains information on: • Confirmation of the error code and result outcome • Suggested Part Replacement • If customer is still covered under Dell Warranty •...
WiFi power cycle About this task If your computer is unable to access the Internet due to WiFi connectivity issues, a WiFi power cycle procedure may be performed. The following procedure provides the instructions on how to conduct a WiFi power cycle: NOTE: Some ISPs (Internet Service Providers) provide a modem/router combo device.
Diagnostic LEDs Instead of beep codes, errors are indicated via the bicolor Battery Charge/Status LED. A specific blink pattern is followed by flashing a pattern of flashes in amber, followed by white. The pattern then repeats. NOTE: The diagnostic pattern will consist of a two-digit number being represented by a first group of LED blinks (1 through 9) in amber, followed by a 1.5 second pause with the LED off, and then a second group of LED blinks (1 through 9) in white.
AMBER: Indicates a problem with the system board Self-Heal Course Introduction About this task Self-Heal is an option that helps recover a Dell Latitude system from a No Post, No Power, No Video situation. Self-Heal Instruction Steps 1. Remove the primary battery and the AC adapter.
BIOS recovery using hard drive About this task NOTE: Ensure that you have the previous version and the latest version of the BIOS from the Dell support site available to use. NOTE: Ensure that you have the file type extensions visible in the operating system (OS).
Overview : LCD Built-in Self Test (BIST) Dell laptop have a built-in diagnostic tool that helps you determine if the screen abnormality you are experiencing is an inherent problem with the LCD (screen) of the Dell laptop or with the video card (GPU) and PC settings .
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5. The screen will display multiple color bars and change colors on the entire screen to red, green, and blue. 6. Carefully inspect the screen for abnormalities. 7. Press Esc key to exit. NOTE: Dell ePSA upon launch, initiates a LCD BIST first, expecting an user intervention confirm functionality of the LCD. Diagnostics...
Getting help and contacting Dell Self-help resources You can get information and help on Dell products and services using these self-help resources: Table 8. Self-help resources Self-help resources Resource location Information about Dell products and services www.dell.com Dell Help and Support app Accessing help In Windows search, type Help and Support, and press Enter.