Dell Inspiron 14R 5421 Owners Manual

Dell Inspiron 14R 5421 Manual

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  • Dell Inspiron 14R 5421 | Owners Manual - Page 1
    Inspiron 14/14R Owner's Manual Computer model: Inspiron 3421/5421 Regulatory model: P37G Regulatory type: P37G001
  • Dell Inspiron 14R 5421 | Owners Manual - Page 2
    of data if instructions are not followed. WARNING: A WARNING indicates a potential for property damage, personal injury, or death. © 2012 Dell Inc. Trademarks used in this text: Dell™, the DELL logo, and Inspiron™ are trademarks of Dell Inc.; Microsoft®, Windows®, and the Windows start button
  • Dell Inspiron 14R 5421 | Owners Manual - Page 3
    Before You Begin 9 Turn Off Your Computer and Connected Devices . . . . . 9 Safety Instructions 10 Recommended Tools 10 After Working Inside Your Computer 11 Removing the Battery 12 Procedure 12 Replacing the Battery 13 Procedure 13 Removing the Optical Drive 14 Prerequisites 14 Procedure
  • Dell Inspiron 14R 5421 | Owners Manual - Page 4
    24 Removing the Hard Drive 25 Prerequisites 25 Procedure 25 Replacing the Hard Drive 27 Procedure 27 Postrequisites 27 Removing the Wireless Mini-Card 28 Prerequisites 28 Procedure 28 Replacing the Wireless Mini-Card 30 Procedure 30 Postrequisites 30 Removing the Palm-Rest
  • Dell Inspiron 14R 5421 | Owners Manual - Page 5
    Battery 36 Prerequisites 36 Procedure 37 Replacing the Coin-Cell Battery 38 Procedure 38 Postrequisites 38 Removing the I/O Board 39 Prerequisites 39 Procedure 40 Replacing 46 Procedure 47 Replacing the System Board 49 Procedure 49 Postrequisites 49 Entering the Service Tag in system
  • Dell Inspiron 14R 5421 | Owners Manual - Page 6
    55 Procedure 55 Postrequisites 55 Removing the Display Assembly 56 Prerequisites 56 Procedure 57 Replacing the Display Assembly 58 Procedure 58 Postrequisites 58 Removing the Display Bezel 59 Prerequisites 59 Procedure 60 Replacing the Display Bezel 61 Procedure 61 Postrequisites 61
  • Dell Inspiron 14R 5421 | Owners Manual - Page 7
    Removing the Display Panel 65 Prerequisites 65 Procedure 66 Replacing the Display Panel 67 Procedure 67 Postrequisites 67 Removing the Camera Module 68 Prerequisites 68 Procedure 69 Replacing the Camera Module 70 Procedure 70 Postrequisites 70 Flashing the BIOS 71 Contents | 7
  • Dell Inspiron 14R 5421 | Owners Manual - Page 8
    8 | Contents
  • Dell Inspiron 14R 5421 | Owners Manual - Page 9
    Windows shuts down and then the computer turns off. NOTE: If you are using a different operating system, see the documentation of your operating system for shut-down instructions. 3 Disconnect your computer and all attached devices from their electrical outlets. 4 Disconnect all telephone cables
  • Dell Inspiron 14R 5421 | Owners Manual - Page 10
    cards, handle them by their edges and avoid touching pins and contacts. CAUTION: Only a certified service technician is authorized to remove the computer cover and access any of the components inside the computer. See the safety instructions for complete information about safety precautions, working
  • Dell Inspiron 14R 5421 | Owners Manual - Page 11
    After Working Inside Your Computer After you complete the replacement procedures, ensure the following: • Replace all screws and ensure that no stray screws remain inside your computer. • Connect any external devices, cables, cards, and any other part(s) you removed before working on your computer.
  • Dell Inspiron 14R 5421 | Owners Manual - Page 12
    Homepage at dell.com/regulatory_compliance. Procedure 1 Close the display and turn the computer over. 2 Slide the battery latches to the unlock position. You hear a click when the battery is unlocked. 3 Lift and remove the battery off the computer base. 2 1 1 battery latches (2) 2 battery 12
  • Dell Inspiron 14R 5421 | Owners Manual - Page 13
    computer, follow the instructions in "After Working Inside Your Computer" on page 11. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Procedure Align the tabs on the battery with the slots on the battery bay and snap the
  • Dell Inspiron 14R 5421 | Owners Manual - Page 14
    your computer, follow the instructions in "After Working Inside Your dell.com/regulatory_compliance. Prerequisites Remove the battery. See "Removing the Battery " on page 12. Procedure 1 Remove the screw that secures the optical-drive assembly to the computer base
  • Dell Inspiron 14R 5421 | Owners Manual - Page 15
    4 Carefully pull the optical-drive bezel and remove it from the optical drive. 1 screw 3 optical drive 2 1 4 3 2 optical-drive bracket 4 optical-drive bezel Removing the Optical Drive | 15
  • Dell Inspiron 14R 5421 | Owners Manual - Page 16
    bay and ensure that the screw hole on the optical-drive bracket aligns with the screw hole on computer base. 4 Replace the screw that secures the optical-drive assembly to the computer base. Postrequisites Replace the battery. See "Replacing the Battery" on page 13. 16 | Replacing the Optical Drive
  • Dell Inspiron 14R 5421 | Owners Manual - Page 17
    Begin" on page 9. After working inside your computer, follow the instructions in "After Working Inside Your Computer" on page 11. For see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Prerequisites Remove the battery. See "Removing the Battery" on page 12. Procedure
  • Dell Inspiron 14R 5421 | Owners Manual - Page 18
    2 Turn the computer over and open the display as far as possible. 3 Using a plastic scribe, pry the keyboard from the tabs on the palm-rest. 1 2 3 1 tabs (5) 3 keyboard 2 plastic scribe 18 | Removing the Keyboard
  • Dell Inspiron 14R 5421 | Owners Manual - Page 19
    4 Lift and slide the keyboard towards the display to release the keyboard from the palm-rest and place the keyboard on the palm-rest. 5 Lift the connector latch and disconnect the keyboard cable from the keyboard-cable connector. 6 Lift the keyboard off the palm-rest. 1 2 1 keyboard 3 keyboard
  • Dell Inspiron 14R 5421 | Owners Manual - Page 20
    your computer, follow the instructions in "After Working Inside Your Computer" on page 11. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Procedure 1 Slide the keyboard cable into the keyboard-cable connector and press down
  • Dell Inspiron 14R 5421 | Owners Manual - Page 21
    your computer, follow the instructions in "After Working Inside Your Computer" on page 11. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Prerequisites Remove the battery. See "Removing the Battery" on page 12. Procedure
  • Dell Inspiron 14R 5421 | Owners Manual - Page 22
    Homepage at dell.com/regulatory_compliance. Procedure 1 Slide the tabs on the base cover into the slots on the computer base and snap the base cover into place. 2 Replace the screw that secures the base cover to the computer base. Postrequisites Replace the battery. See "Replacing the Battery" on
  • Dell Inspiron 14R 5421 | Owners Manual - Page 23
    , follow the instructions in "After Working Inside Your Computer" on page 11. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Prerequisites 1 Remove the battery. See "Removing the Battery" on page 12. 2 Remove the base cover
  • Dell Inspiron 14R 5421 | Owners Manual - Page 24
    down until it clicks into place. NOTE: If you do not hear the click, remove the memory module and reinstall it. Postrequisites 1 Replace the base cover. See "Replacing the Base Cover" on page 22. 2 Replace the battery. See "Replacing the Battery" on page 13. 24 | Replacing the Memory Module(s)
  • Dell Inspiron 14R 5421 | Owners Manual - Page 25
    working inside your computer, follow the instructions in "After Working Inside Your Computer information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. CAUTION: To avoid data battery. See "Removing the Battery" on page 12. 2 Remove the base cover. See "Removing the Base
  • Dell Inspiron 14R 5421 | Owners Manual - Page 26
    1 3 2 1 screw 3 hard-drive assembly 2 pull-tab 4 Remove the screws that secure the hard-drive bracket to the hard drive. 5 Using the pull-tab, lift the hard-drive bracket off the hard drive. 1 1 hard-drive bracket 3 hard drive 26 | Removing the Hard Drive 3 2 2 screws (2)
  • Dell Inspiron 14R 5421 | Owners Manual - Page 27
    the hard-drive assembly to the system board. 5 Replace the screw that secures the hard-drive assembly to the computer base. Postrequisites 1 Replace the base cover. See "Replacing the Base Cover" on page 22. 2 Replace the battery. See "Replacing the Battery" on page 13. Replacing the Hard Drive | 27
  • Dell Inspiron 14R 5421 | Owners Manual - Page 28
    see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Prerequisites 1 Remove the battery. See "Removing the Battery" on page 12. 2 Remove the base cover. See "Removing the Base Cover" on page 21. Procedure 1 Disconnect the antenna cables from the wireless mini-card. 2 Remove the
  • Dell Inspiron 14R 5421 | Owners Manual - Page 29
    3 Slide and remove the wireless mini-card out of the mini-card connector. 1 wireless mini-card 2 1 2 mini-card connector Removing the Wireless Mini-Card | 29
  • Dell Inspiron 14R 5421 | Owners Manual - Page 30
    + Bluetooth (white triangle) Auxiliary WLAN + Bluetooth (black triangle) Antenna cable color schemes white black Postrequisites 1 Replace the base cover. See "Replacing the Base Cover" on page 22. 2 Replace the battery. See "Replacing the Battery" on page 13. 30 | Replacing the Wireless Mini-Card
  • Dell Inspiron 14R 5421 | Owners Manual - Page 31
    information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Prerequisites 1 Remove the battery. See "Removing the Battery" on page 12. 2 Remove the base cover. See "Removing the Base Cover" on page 21. 3 Follow the instructions from step 1 to step 3 in "Removing the
  • Dell Inspiron 14R 5421 | Owners Manual - Page 32
    2 Press the latches to release the palm-rest from the computer base. 1 1 latches (4) 32 | Removing the Palm-Rest
  • Dell Inspiron 14R 5421 | Owners Manual - Page 33
    display as far as possible. 4 Remove the screws that secure the palm-rest to the computer base. 5 Lift the connector latches and, using the pull-tabs, disconnect the touchpad cable and the power-button cable from the system board. 1 2 1 power-button cable 3 connector latches (2) 5 touchpad cable
  • Dell Inspiron 14R 5421 | Owners Manual - Page 34
    lift and release the tabs on the palm-rest from the slots on the computer base. CAUTION: Separate the palm-rest from the display assembly carefully to avoid damage to the display assembly. 7 Lift the palm-rest off the computer base. 1 palm-rest 2 1 2 plastic scribe 34 | Removing the Palm-Rest
  • Dell Inspiron 14R 5421 | Owners Manual - Page 35
    to secure the cables. 5 Close the display and turn the computer over. 6 Replace the screws that secure the palm-rest to the computer base. Postrequisites 1 Replace the keyboard. See "Replacing the Keyboard" on page 20. 2 Follow the instructions from step 3 to step 5 in "Replacing the Hard Drive
  • Dell Inspiron 14R 5421 | Owners Manual - Page 36
    . It is recommended that you note the BIOS settings before removing the coin-cell battery. Prerequisites 1 Remove the battery. See "Removing the Battery" on page 12. 2 Remove the base cover. See "Removing the Base Cover" on page 21. 3 Follow the instructions from step 1 to step 3 in "Removing the
  • Dell Inspiron 14R 5421 | Owners Manual - Page 37
    Procedure Using a plastic scribe, gently pry out the coin-cell battery out of the battery socket on the system board. 1 2 3 1 plastic scribe 3 battery socket 2 coin-cell battery Removing the Coin-Cell Battery | 37
  • Dell Inspiron 14R 5421 | Owners Manual - Page 38
    " on page 35. 2 Replace the keyboard. See "Replacing the Keyboard" on page 20. 3 Follow the instructions from step 3 to step 5 in "Replacing the Hard Drive" on page 27. 4 Replace the base cover. See "Replacing the Base Cover" on page 22. 5 Replace the battery. See "Replacing the Battery" on page 13
  • Dell Inspiron 14R 5421 | Owners Manual - Page 39
    information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Prerequisites 1 Remove the battery. See "Removing the Battery" on page 12. 2 Remove the base cover. See "Removing the Base Cover" on page 21. 3 Follow the instructions from step 1 to step 3 in "Removing the
  • Dell Inspiron 14R 5421 | Owners Manual - Page 40
    Procedure 1 Lift the connector latch and, using the pull-tab, disconnect the I/O-board cable from the I/O-board. 2 Remove the screw that secures the I/O board to the computer base. 3 Lift the I/O board off the computer base. 1 2 3 4 1 I/O board 3 pull-tab 5 screw 5 2 connector latch 4 I/O board
  • Dell Inspiron 14R 5421 | Owners Manual - Page 41
    " on page 35. 2 Replace the keyboard. See "Replacing the Keyboard" on page 20. 3 Follow the instructions from step 3 to step 5 in "Replacing the Hard Drive" on page 27. 4 Replace the base cover. See "Replacing the Base Cover" on page 22. 5 Replace the battery. See "Replacing the Battery" on page 13
  • Dell Inspiron 14R 5421 | Owners Manual - Page 42
    information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Prerequisites 1 Remove the battery. See "Removing the Battery" on page 12. 2 Remove the base cover. See "Removing the Base Cover" on page 21. 3 Follow the instructions from step 1 to step 3 in "Removing the
  • Dell Inspiron 14R 5421 | Owners Manual - Page 43
    that secures the display cable to the display-cable connector. 2 Lift the connector latch and pull the tape to disconnect the display cable from the display-cable connector. 1 2 3 1 display cable 3 connector latch 2 tape 3 Peel the display cable from the fan. 4 Move the display cable away from
  • Dell Inspiron 14R 5421 | Owners Manual - Page 44
    board. 6 Note the power-adapter-port cable routing and remove it from the routing guides on the computer base. 7 Lift the power-adapter port, along with its cable, off the computer base. 1 2 3 1 power-adapter port 3 power-adapter-port cable 2 routing guides 44 | Removing the Power-Adapter Port
  • Dell Inspiron 14R 5421 | Owners Manual - Page 45
    dell.com/regulatory_compliance. Procedure 1 Slide the power-adapter port into position. 2 Route the power-adapter-port cable through the routing guides on the computer base. 3 Connect the power-adapter-port cable to the system board. 4 Adhere the display cable to the fan. 5 Slide the display cable
  • Dell Inspiron 14R 5421 | Owners Manual - Page 46
    can reconnect them correctly after you replace the system board. Prerequisites 1 Remove the battery. See "Removing the Battery" on page 12. 2 Follow the instructions from step 1 to step 2 in "Removing the Optical Drive" on page 14. 3 Remove the base cover. See "Removing the Base Cover" on page 21
  • Dell Inspiron 14R 5421 | Owners Manual - Page 47
    the connector latch and, using the pull-tab, disconnect the display cable from the system-board connector. 3 Peel the display cable from the fan. 4 Lift the connector latch and, using the pull-tab, disconnect the I/O-board cable from the system-board connector. 5 Disconnect the power-adapter-port
  • Dell Inspiron 14R 5421 | Owners Manual - Page 48
    at an angle and release the system-board ports from the slots on the computer base. 8 Lift the system-board assembly off the computer base. 2 1 1 system board 2 screw 9 Turn the system board over. 10 Remove the thermal-cooling assembly. See "Removing the Thermal-Cooling Assembly" on page 51. 48
  • Dell Inspiron 14R 5421 | Owners Manual - Page 49
    display cable to the fan. 8 Slide the display cable into the system-board connector and press down on the connector latch to secure the cable. 9 Adhere the tape to the system-board connector. Postrequisites 1 Replace the coin-cell battery. See "Replacing the Coin-Cell Battery" on page 38 2 Replace
  • Dell Inspiron 14R 5421 | Owners Manual - Page 50
    Entering the Service Tag in system setup 1 Turn on the computer. 2 Press during POST to enter the system setup program. 3 Using the arrow keys, select Enter Setup and press . 4 Navigate to the Main tab and enter your computer's Service Tag in the Service Tag field. 50 | Replacing the
  • Dell Inspiron 14R 5421 | Owners Manual - Page 51
    page 11. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Prerequisites 1 Remove the battery. See "Removing the Battery" on page 12. 2 Follow the instructions from step 1 to step 2 in "Removing the Optical Drive" on page 14
  • Dell Inspiron 14R 5421 | Owners Manual - Page 52
    on page 35. 3 Replace the keyboard. See "Replacing the Keyboard" on page 20. 4 Replace the base cover. See "Replacing the Base Cover" on page 22. 5 Follow the instructions from step 3 to step 4 in "Replacing the Optical Drive" on page 16. 6 Replace the battery. See "Replacing the Battery" on page 13
  • Dell Inspiron 14R 5421 | Owners Manual - Page 53
    page 11. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/ regulatory_compliance. Prerequisites 1 Remove the battery. See "Removing the Battery" on page 12. 2 Follow the instructions from step 1 to step 2 in "Removing the Optical Drive" on page 14
  • Dell Inspiron 14R 5421 | Owners Manual - Page 54
    Procedure 1 Note the speaker-cable routing and remove the cable from its routing guides. 2 Lift the speakers, along with the speaker cable, off the computer base. 1 speaker cable 2 1 2 speakers (2) 54 | Removing the Speakers
  • Dell Inspiron 14R 5421 | Owners Manual - Page 55
    Homepage at dell.com/regulatory_compliance. Procedure 1 Using the alignment posts on the computer base, place the speakers in position. 2 Route the speakers cable through the routing guides on the computer base. Postrequisites 1 Follow the instructions from step 3 to step 9 in "Replacing the System
  • Dell Inspiron 14R 5421 | Owners Manual - Page 56
    page 11. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Prerequisites 1 Remove the battery. See "Removing the Battery" on page 12. 2 Follow the instructions from step 1 to step 2 in "Removing the Optical Drive" on page 14
  • Dell Inspiron 14R 5421 | Owners Manual - Page 57
    1 Note the antenna cable routing and remove the cable from its routing guides. 2 Remove the screws that secure the display assembly to the computer base. 3 Lift the display assembly off the computer base. 1 2 3 1 display assembly 3 routing guides 2 screws (4) Removing the Display Assembly | 57
  • Dell Inspiron 14R 5421 | Owners Manual - Page 58
    with the screw holes on the computer base. 2 Replace the screws that secure the display assembly to the computer base. 3 Route the antenna cable through the routing guides on the computer base. Postrequisites 1 Follow the instructions from step 3 to step 9 in "Replacing the System Board" on page 49
  • Dell Inspiron 14R 5421 | Owners Manual - Page 59
    page 11. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Prerequisites 1 Remove the battery. See "Removing the Battery" on page 12. 2 Follow the instructions from step 1 to step 2 in "Removing the Optical Drive" on page 14
  • Dell Inspiron 14R 5421 | Owners Manual - Page 60
    1 Press the hinge covers on the sides and lift the hinge covers to remove them from the display assembly. 1 1 hinge covers (2) 2 Using your fingertips, carefully pry up the inside edge of the display bezel. 3 Remove the display bezel off the display back-cover. 1 1 display bezel 60 | Removing the
  • Dell Inspiron 14R 5421 | Owners Manual - Page 61
    . See "Replacing the Keyboard" on page 20. 5 Replace the base cover. See "Replacing the Base Cover" on page 22. 6 Follow the instructions from step 3 to step 4 in "Replacing the Optical Drive" on page 16. 7 Replace the battery. See "Replacing the Battery" on page 13. Replacing the Display Bezel | 61
  • Dell Inspiron 14R 5421 | Owners Manual - Page 62
    page 11. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Prerequisites 1 Remove the battery. See "Removing the Battery" on page 12. 2 Follow the instructions from step 1 to step 2 in "Removing the Optical Drive" on page 14
  • Dell Inspiron 14R 5421 | Owners Manual - Page 63
    Procedure 1 Remove the screws that secure the display hinges to the display back-cover. 2 Lift the display hinges off the display back-cover. 1 2 3 1 display hinges (2) 3 screws (8) 2 display back-cover Removing the Display Hinges | 63
  • Dell Inspiron 14R 5421 | Owners Manual - Page 64
    See "Replacing the Keyboard" on page 20. 6 Replace the base cover. See "Replacing the Base Cover" on page 22. 7 Follow the instructions from step 3 to step 4 in "Replacing the Optical Drive" on page 16. 8 Replace the battery. See "Replacing the Battery" on page 13. 64 | Replacing the Display Hinges
  • Dell Inspiron 14R 5421 | Owners Manual - Page 65
    "Removing the Wireless Mini-Card" on page 28. 7 Remove the keyboard. See "Removing the Keyboard" on page 17. 8 Remove the palm-rest. See "Removing the Palm-Rest" on page 31. 9 Follow the instructions from step 1 to step 8 in "Removing the System Board" on page 46. 10 Remove the display assembly. See
  • Dell Inspiron 14R 5421 | Owners Manual - Page 66
    that secure the display panel to the display back-cover. 2 Gently lift the display panel and turn it over. 1 2 3 1 display back-cover 3 screw (4) 2 display panel 3 Peel the tape adhered over the display cable. 4 Disconnect the display cable from the display-panel cable connector. 1 tape 66
  • Dell Inspiron 14R 5421 | Owners Manual - Page 67
    "Replacing the Memory Module(s)" on page 24. 10 Replace the base cover. See "Replacing the Base Cover" on page 22. 11 Follow the instructions from step 3 to step 4 in "Replacing the Optical Drive" on page 16. 12 Replace the battery. See "Replacing the Battery" on page 13. Replacing the Display Panel
  • Dell Inspiron 14R 5421 | Owners Manual - Page 68
    "Removing the Wireless Mini-Card" on page 28. 7 Remove the keyboard. See "Removing the Keyboard" on page 17. 8 Remove the palm-rest. See "Removing the Palm-Rest" on page 31. 9 Follow the instructions from step 1 to step 8 in "Removing the System Board" on page 46. 10 Remove the display assembly. See
  • Dell Inspiron 14R 5421 | Owners Manual - Page 69
    Procedure 1 Peel the tapes that secure the camera module to the display back-cover. 2 Disconnect the camera cable from the camera module. 3 Peel the camera module off the display back-cover. 1 2 3 1 tapes (2) 3 camera cable 2 camera module Removing the Camera Module | 69
  • Dell Inspiron 14R 5421 | Owners Manual - Page 70
    the memory module(s). See "Replacing the Memory Module(s)" on page 24. 9 Replace the base cover. See "Replacing the Base Cover" on page 22. 10 Follow the instructions from step 3 to step 4 in "Replacing the Optical Drive" on page 16. 11 Replace the battery. See "Replacing the Battery" on page 13. 70
  • Dell Inspiron 14R 5421 | Owners Manual - Page 71
    computer. 9 On the next page, select Single-file download and click Continue. 10 Save the file and once the download is complete, navigate to the folder where you saved the BIOS update file. 11 Double-click the BIOS update file icon and follow the instructions on the screen. Flashing the BIOS | 71
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Inspiron 14/14R
Owner’s Manual
Computer model: Inspiron 3421/5421
Regulatory model: P37G
Regulatory type: P37G001