Contents 1 Working on your computer......................5 Safety instructions................................5 Before working inside your computer........................... 5 Safety precautions................................6 Electrostatic discharge—ESD protection........................6 ESD field service kit ................................ 7 After working inside your computer..........................7 2 Technology and components......................9 USB features..................................9 USB Type-C..................................10 HDMI 1.4....................................11 Power button LED behavior...............................
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Smart card reader board..............................89 Removing the smart card reader board........................89 Installing the smart card reader board.........................91 Palmrest assembly................................93 Replacing the palmrest and keyboard assembly......................93 5 Troubleshooting.........................95 SupportAssist Diagnostics..............................95 System diagnostic lights..............................97 WiFi power cycle................................. 98 6 Getting help and contacting Dell....................99 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.
Due to the increased density of semiconductors used in recent Dell products, the sensitivity to static damage is now higher than in previous Dell products. For this reason, some previously approved methods of handling parts are no longer applicable.
It is recommended that all field service technicians use the traditional wired ESD grounding wrist strap and protective anti-static mat at all times when servicing Dell products. In addition, it is critical that technicians keep sensitive parts separate from all insulator parts while performing service and that they use anti-static bags for transporting sensitive components.
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CAUTION: To connect a network cable, first plug the cable into the network device and then plug it into the computer. 2. Connect your computer and all attached devices to their electrical outlets. 3. Turn on your computer. 4. If required, verify that the computer works correctly by running the diagnostic tool. Working on your computer...
Technology and components This chapter details the technology and components available in the system. Topics: • USB features • USB Type-C • HDMI 1.4 • Power button LED behavior USB features Universal Serial Bus, or USB, was introduced in 1996. It dramatically simplified the connection between host computers and peripheral devices like mice, keyboards, external drivers, and printers.
USB 3.2 Gen 1 achieves the much higher performance by the technical changes below: • An additional physical bus that is added in parallel with the existing USB 2.0 bus (see the figure below). • USB 2.0 previously had four wires (power, ground, and a pair for differential data); USB 3.1 Gen 1 adds four more for two pairs of differential signals (receive and transmit) for a combined total of eight connections in the connectors and cabling.
it as an external display — all via the one little USB Type-C connection. To use this, the device and the cable have to support USB Power Delivery. Just having a USB Type-C connection doesn't necessarily mean they do. USB Type-C and USB 3.1 USB 3.1 is a new USB standard.
Power button LED behavior On certain Dell Latitude systems, the power button LED is used to provide an indication of the system status, and as a result the power button illuminates when pressed. The systems with the optional power button/fingerprint reader will have no LED under the power button and hence will apply the available LED's in the system to provide an indication of the system status.
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Power button with fingerprint reader will have no LED and will leverage the available LED's in the system to provide indication of the system status • Power Adapter LED: ○ The LED on Power adapter connector illuminates white when power is supplied from electrical outlet. •...
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Major components of your system Major components of your system...
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17. System fan NOTE: Dell provides a list of components and their part numbers for the original system configuration purchased. These parts are available according to warranty coverages purchased by the customer. Contact your Dell sales representative for purchase options.
Disassembly and reassembly NOTE: Some of the images used in this manual are leveraged from its predecessor model for illustration purpose and may slightly vary from the actual system. The images are still applicable to convey the service procedures accurately. Topics: •...
Installing the microSD card Steps 1. Align the microSD card to its slot on the computer [1]. 2. Slide the microSD card into the slot until it clicks into place [2]. Disassembly and reassembly...
Next steps Follow the procedures in After working inside your computer. SIM card tray Removing the SIM card tray Prerequisites Follow the procedure in Before working inside your computer Steps 1. Insert a pin into the hole of the SIM card tray and push inward until the tray is released [1, 2]. 2.
Installing the SIM card tray Steps 1. Place the SIM card into the SIM card tray with the metallic contact facing up [1]. 2. Align the SIM card tray with the slot on the computer and carefully slide it in [2]. 3.
Next steps Follow the procedures in After working inside your computer Base cover Removing the base cover Prerequisites 1. Follow the procedure in before working inside your computer. 2. Remove the microSD card. Steps 1. Loosen the eight captive screws that secure the base cover to the computer. Disassembly and reassembly...
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2. Using a plastic scribe [1], pry the base cover from the top-left corner and continue to work on the sides to open the base cover [2]. Disassembly and reassembly...
3. Lift and remove the base cover away from the computer. 4. After removing the base cover, remove the SIM cover. To remove the SIM cover pry the dummy SIM card upwards from the recess point which is the area between the dummy SIM card and system chassis. Installing the base cover Steps 1.
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3. Press the edges and sides of the base cover until it snaps into place. Disassembly and reassembly...
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4. Tighten the eight captive screws to secure the base cover to the computer. Disassembly and reassembly...
If the battery gets stuck inside your computer as a result of swelling, do not try to release it as puncturing, bending, or crushing a lithium-ion battery can be dangerous. In such an instance, contact Dell technical support for assistance. See www.dell.com/contactdell.
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3. Loosen the two captive screws that secure the battery to the palm rest assembly [1]. 4. Lift and slide the battery away from the palm rest assembly. [2]. Disassembly and reassembly...
Installing the battery Steps 1. Align the tabs on the battery with the slots on the palm rest assembly [1]. 2. Place the battery in the battery bay. 3. Tighten the two captive screws to secure the battery to the palmrest [2]. Disassembly and reassembly...
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4. Connect the battery cable to the connector on the system board [1]. 5. Affix the adhesive tapes on the battery [2]. Disassembly and reassembly...
Next steps 1. Replace the base cover. 2. Replace the microSD card. 3. Follow the procedure in after working inside your computer WWAN card Removing the WWAN card Prerequisites 1. Follow the procedure in before working inside your computer. 2. Remove the microSD card.
Installing the WWAN card About this task CAUTION: To avoid damage to the WWAN card, do not place any cables under it. Steps 1. Align the notch on the WWAN card with the tab on the WWAN card slot and insert the WWAN card at an angle into the WWAN card slot [1].
Next steps 1. Connect the battery cable. 2. Replace the base cover. 3. Replace the microSD card. 4. Follow the procedure in after working inside your computer. WLAN card Removing the WLAN card Prerequisites 1. Follow the procedure in before working inside your computer.
Installing the WLAN card About this task CAUTION: To avoid damage to the WLAN card, do not place any cables under it. Steps 1. Insert the WLAN card into the connector on the system board [1]. 2. Connect the WLAN antenna cables to the connectors on the WLAN card [2]. 3.
Next steps 1. Connect the battery cable. 2. Replace the base cover. 3. Replace the microSD card. 4. Follow the procedure in after working inside your computer. Memory modules Removing the memory module Prerequisites 1. Follow the procedure in before working inside your computer.
Installing the memory module Steps 1. Align the notch on the memory module with the tab on the memory-module slot. 2. Slide the memory module firmly into the slot at an angle [1]. 3. Press the memory module down until the clips secure it [2]. NOTE: If you do not hear the click, remove the memory module and reinstall it.
Next steps 1. Connect the battery cable. 2. Replace the base cover. 3. Replace the microSD card. 4. Follow the procedure in after working inside your computer. Solid-state drive Removing the M.2 SSD Prerequisites 1. Follow the procedure in before working inside your computer.
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3. Remove the single (M2x2) screw that secures the M.2 SSD to the palmrest [1]. 4. Lift the M.2 SSD away from the computer [2]. Disassembly and reassembly...
Installing the M.2 SSD About this task NOTE: The computer supports one M.2 2230 solid-state drive or one M.2 2280 solid-state drive at a time. The following instructions indicates the steps to install only one M.2 SSD card as both the cards utilizes the same slot. Steps 1.
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3. Align and place the SSD support bracket above the M.2 SSD [1]. 4. Replace the two (M2x3) screws to secure the SSD support bracket to the palmrest [2]. Disassembly and reassembly...
Next steps 1. Connect the battery cable. 2. Replace the base cover. 3. Replace the microSD card. 4. Follow the procedure in after working inside your computer. Speakers Removing the speakers Prerequisites 1. Follow the procedure in before working inside your computer.
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3. Disconnect the touchpad cable from the connector on the daughter board. 4. Peel the adhesive tapes and unroute the speaker cable. Disassembly and reassembly...
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5. Lift and remove the speakers away from the palmrest. Disassembly and reassembly...
Installing the speakers Steps 1. Using the alignment posts and rubber grommets, place the speakers in their slots on the palmrest. 2. Route the speaker cable through the routing guides. Disassembly and reassembly...
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3. Affix the adhesive tape to secure the speaker cable to the palmrest [1]. 4. Connect the speaker cable to the connector on the system board [2]. Disassembly and reassembly...
Next steps 1. Replace the battery. 2. Replace the base cover. 3. Replace the microSD card. 4. Follow the procedure in after working inside your computer. System fan Removing the system fan Prerequisites 1. Follow the procedure in before working inside your computer.
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2. Remove the two (M2x5) screws that secure the system fan to the palmrest [1]. 3. Lift the system fan away from the computer [2]. Disassembly and reassembly...
Installing the system fan Steps 1. Place and align the screw holes on the system fan with the screw holes on to the palmrest [1]. 2. Replace the two (M2x5) screws to secure the system fan to the palmrest [2]. Disassembly and reassembly...
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3. Connect the system fan cable to the connector on the system board. Disassembly and reassembly...
Next steps 1. Replace the battery. 2. Replace the base cover. 3. Replace the microSD card. 4. Follow the procedure in after working inside your computer. Heat sink Removing the heatsink Prerequisites 1. Follow the procedure in before working inside your computer.
Installing the heatsink Steps 1. Place the heatsink on the system board and align the screw holes on the heatsink with the screw holes on the system board [1]. 2. In sequential order (as indicated on the heatsink), tighten the four captive screws that secure the heatsink to the system board [2]. Next steps 1.
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Steps 1. Remove the two (M2x4) screws that secure the Type-C bracket to the system board [1]. 2. Lift the Type-C bracket away from the computer [2]. 3. Press the DC-in port cable and then pull the cable horizontally to disconnect the DC-in port cable from the connector on the system board [1].
Installing the DC-in port Steps 1. Place the DC-in port to its slot on the computer [1]. 2. Connect the DC-in port cable to the connector on the system board [2]. Disassembly and reassembly...
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3. Place the Type-C bracket on its slot on the computer [1]. 4. Replace the two (M2x4) screws to secure the Type-C bracket to the palmrest [2]. Disassembly and reassembly...
Next steps 1. Replace the battery. 2. Replace the base cover. 3. Replace the microSD card. 4. Follow the procedure in after working inside your computer. LED board Removing the LED board Prerequisites 1. Follow the procedure in before working inside your computer.
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3. Peel the adhesive tape that secures the LED board cable connector to the LED board [1]. 4. Peel the grey adhesive tape that secures the LED board [2]. Disassembly and reassembly...
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5. Remove the single (M2x2.5) screw that secures the LED board to the palmrest [1]. 6. Lift the LED board away from the computer [2]. Disassembly and reassembly...
Installing the LED board Steps 1. Place the LED board and align the screw hole on the LED board with the screw hole on the palmrest [1]. 2. Replace the single (M2x2.5) screw to secure the LED board to the palmrest [2]. Disassembly and reassembly...
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3. Affix the grey adhesive tape to secure the LED board [1]. 4. Affix the adhesive tape to secure the LED board [2]. Disassembly and reassembly...
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5. Connect the LED board cable to the connector on the system board and route the LED board cable [1, 2]. Disassembly and reassembly...
Next steps 1. Replace the battery. 2. Replace the base cover. 3. Replace the microSD card. 4. Follow the procedure in after working inside your computer. Touchpad button board Removing the touchpad button board Prerequisites 1. Follow the procedure in before working inside your computer.
Installing the touchpad button board Steps 1. Place the touchpad button board into the slot on the palmrest [1]. 2. Replace the two (M2x3) screws to secure the touchpad button board to the palmrest [2]. Disassembly and reassembly...
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3. Connect the touchpad button board cable to the connector on the touchpad board. Disassembly and reassembly...
Next steps 1. Replace the board. 2. Replace the speaker. 3. Replace the battery. 4. Replace the base cover. 5. Replace the microSD card. 6. Follow the procedure in after working inside your computer. System board Removing the system board Prerequisites 1.
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3. Disconnect the following cables: a. USH cable [1]. b. LED board cable [2]. c. touchpad cable [3]. Disassembly and reassembly...
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4. Remove the single (M2.5x4) screw that secures the fingerprint support bracket to the system board [1]. 5. Lift the fingerprint support bracket away from the computer [2]. 6. Disconnect the fingerprint port [3]. Disassembly and reassembly...
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7. Peel the adhesive tape and disconnect the cable from the connector on the system board [1]. 8. Peel the adhesive tape that secures the eDP bracket [2]. 9. Remove the single (M2x4) screw that secures the eDP bracket to the system board [3]. 10.
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12. Disconnect the sensor board cable from the connector on the system board [1]. 13. Release the coin cell battery from the palmrest [2]. Disassembly and reassembly...
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14. Remove the single (M2.5x4) screw that secures the system board to the palmrest [1]. 15. Lift the system board away from the computer [2]. Disassembly and reassembly...
Installing the system board Steps 1. Align and place the system board to the palmrest [1]. 2. Replace the single (M2.5x4) screw to secure the system board to the palmrest [2]. Disassembly and reassembly...
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3. Connect the sensor cable to the connector on the system board [1]. 4. Place the coin cell battery into its slot on the plamrest [2]. Disassembly and reassembly...
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5. Connect the cable to the connector on the system board and adhere the adhesive tape [1]. 6. Connect the eDP cable to the connector on the system board [2]. 7. Place the eDP support bracket above the eDP connector [3]. 8.
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10. Connect the fingerprint cable to the connector on the system board [1]. 11. Place the fingerprint support bracket [2]. 12. Replace the single (M2.5x4) screw to secure the fingerprint support bracket to the system board [3]. Disassembly and reassembly...
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13. Connect the following cables: a. USH cable [1]. b. LED board cable [2]. c. touchpad cable [3]. Disassembly and reassembly...
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14. Align and place the memory module frame in its slot on the system board [1]. 15. Replace the three (M2x3) screws to secure the memory module frame to the system board [2]. Disassembly and reassembly...
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Next steps 1. Replace the WWAN card. 2. Replace the WLAN card. 3. Replace the Dc-in. 4. Replace the memory module. 5. Replace the system fan. 6. Replace the heatsink. 7. Replace the speaker. 8. Replace the battery. 9. Replace the base cover.
Coin-cell battery Removing the coin-cell battery Prerequisites 1. Follow the procedure in before working inside your computer. 2. Remove the microSD card. 3. Remove the base cover. 4. Remove the battery. 5. Remove the speaker. 6. Remove the heatsink. 7. Remove the memory module.
Next steps 1. Replace the system board. 2. Replace the WWAN card. 3. Replace the WLAN card. 4. Replace the DC-in. 5. Replace the memory module. 6. Replace the system fan. 7. Replace the heatsink. 8. Replace the speaker. 9. Replace the battery. 10.
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Steps 1. Peel the adhesive tape and disconnect the cable from the connector on the system board [1]. 2. Remove the single (M2x4) screw that secures the eDP cable bracket to the system board [2]. 3. Lift the eDP cable bracket from the system board [3]. 4.
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6. Remove the four (M2.5x4) screws that secure the display assembly to the system chassis [1]. 7. Remove the display assembly from the system [2]. Disassembly and reassembly...
Installing the display assembly About this task NOTE: Ensure that the hinges are opened to the maximum before replacing the display assembly on the palmrest and keyboard assembly. Steps 1. Align and place the system chassis under the hinges of the display assembly [1]. 2.
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3. Seat the system chassis on the display assembly. Disassembly and reassembly...
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4. Connect the cable to the connector on the system board and adhere the adhesive tape [1]. 5. Reroute the eDP cable and connect it to the eDP connector [2]. 6. Place the eDP cable bracket on the system board [3]. 7.
Next steps 1. Replace the battery. 2. Replace the base cover. 3. Replace the microSD card. 4. Follow the procedure in after working inside your computer. Keyboard Removing the keyboard Prerequisites 1. Follow the procedure in before working inside your computer.
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10. Remove the WWAN card. 11. Remove the system board. NOTE: System board can be removed with heatsink attached. 12. Remove the coin cell battery. Steps 1. Peel the adhesive tape securing the keyboard and the smartcard reader. 2. Lift the latch and disconnect the backlit cable and the keyboard cables from the connectors on the touchpad. Disassembly and reassembly...
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3. Remove the 19 (M2x2) screws that secure the keyboard to the palmrest [1]. 4. Remove the keyboard away from the computer [2]. Disassembly and reassembly...
Installing the keyboard Steps 1. Align and place the keyboard on the palmrest [1]. 2. Replace the 19 (M2x2) screws to secure the keyboard to the palmrest [2]. Disassembly and reassembly...
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3. Connect the backlit cable and the keyboard cables to the connectors on the touchpad. Disassembly and reassembly...
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4. Adhere the adhesive tape securing the keyboard and the smartcard board. Disassembly and reassembly...
Next steps 1. Replace the coin cell battery. 2. Replace the system board. NOTE: System board can be replaced with heatsink attached. 3. Replace the WWAN card. 4. Replace the WLAN card. 5. Replace the DC-in. 6. Replace the system fan.
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2. Remove the two (M2x2.5) screws that secure the smart card reader to the palmrest [1]. 3. Lift the smart card reader board away from the computer [2]. Disassembly and reassembly...
Installing the smart card reader board Steps 1. Align and place the smart card reader board on the palmrest [1]. 2. Replace the two (M2x2.5) screws to secure the smart card reader board to the palmrest [2]. Disassembly and reassembly...
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3. Reroute the smart card reader cable. Disassembly and reassembly...
Next steps 1. Replace the coin cell battery. 2. Replace the system board. 3. Replace the WWAN card. 4. Replace the WLAN card. 5. Replace the Dc-in. 6. Replace the memory module. 7. Replace the system fan. 8. Replace the speaker. 9.
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7. Remove the system fan. 8. Remove the DC-in 9. Remove the WLAN card. 10. Remove the WWAN card. 11. Remove the system board. NOTE: System board can be removed with heatsink attached. 12. Remove the coin cell battery. 13. Remove the SmartCard reader board.
Invoke diagnostics by either of the methods that are suggested below: • Tap F12 key on keyboard, as the Dell splash screen appears, until you get the message Diagnostic Boot Selected. • On the one-time boot menu screen, use the Up/Down arrow key to select the Diagnostics option and then press Enter.
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SupportAssist 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 left- hand side of the basic screen.
SupportAssist Error Messages When the Dell SupportAssist Diagnostic detects an error while running, it will pause the test and the following window is displayed: • By responding Yes, the diagnostic will continue testing the next device and the error details will be available in the summary report.
Table 2. LED codes(continued) Diagnostic light codes Problem description Memory or RAM (Random-Access Memory) failure Invalid memory installed System-board or chipset error Display failure LCD power rail failure. Replace system board Coin-cell battery failure PCI, video card/chip failure Recovery image not found Recovery image found but invalid Power-rail failure System BIOS Flash incomplete...
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 3. 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.