Dell Inspiron M521R 5525 Inspiron M521R Owners Manual
Dell Inspiron M521R 5525 Manual
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- Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 1
Dell Inspiron 15R/M521R Owner's Manual Computer model: Inspiron 5520/7520/5525 Regulatory model: P25F Regulatory type: P25F001/P25F002 - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 2
that helps you make better use of your computer. CAUTION: A CAUTION indicates potential damage to hardware or loss of data if instructions are not followed. WARNING: A WARNING indicates a potential for property damage, personal injury, or death. Information in this document is subject to - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 3
Contents 1 Before You Begin 7 Turn Off Your Computer and Connected Devices . . . 7 Safety Instructions 7 Recommended Tools 8 2 After Working Inside Your Computer 9 3 Switch 11 Removing the Switch 11 Replacing the Switch 12 4 Battery 13 Removing the Battery 13 Replacing the - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 4
Module 45 Replacing the Camera Module 48 14 System Board 49 Removing the System Board 49 Replacing the System Board 52 Entering the Service Tag in the BIOS 53 15 Thermal-Cooling Assembly 55 Removing the Thermal-Cooling Assembly 55 Replacing the Thermal-Cooling Assembly 57 16 Processor - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 5
18 Speakers 67 Removing the Speakers 67 Replacing the Speakers 69 19 Media Card Reader 71 Removing the Media Card Reader 71 Replacing the Media Card Reader 73 20 Daughter Board 75 Removing the Daughter Board 75 Replacing the Daughter Board 77 21 Mini-Card 79 Removing the Mini-Card 79 - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 6
6 | Contents - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 7
and exit all open programs before you turn off your computer. 1 Save and close all open files and exit all open programs. 2 Follow the instructions to shut down your computer based on the operating system installed on your computer. Windows 8: Move your mouse pointer to the upper-right or lower - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 8
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 inside your computer, and protecting against electrostatic discharge. - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 9
2 After Working Inside Your Computer After you complete 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 M521R 5525 | Inspiron M521R Owners Manual - Page 10
10 | After Working Inside Your Computer - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 11
3 Switch WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in "Before You Begin" on page 7. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 12
Replacing the Switch Procedure 1 Align the tabs at the bottom of the switch with the slots on the display cover and snap the switch into place. 4 3 2 1 1 display cover 3 tabs 2 slots 4 switch 2 Follow the instructions in "After Working Inside Your Computer" on page 9. 12 | Switch - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 13
Battery 1 Align the tabs on the battery with the slots on the battery bay and snap the battery until it clicks into place. 2 Follow the instructions in "After Working Inside Your Computer" on page 9. Battery | 13 - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 14
14 | Battery - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 15
5 Keyboard WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in "Before You Begin" on page 7. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 16
on the palm rest. 4 Close the display and turn the computer over. Postrequisites 1 Replace the battery. See "Replacing the Battery" on page 13. 2 Follow the instructions in "After Working Inside Your Computer" on page 9. 16 | Keyboard - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 17
6 Base Cover WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in "Before You Begin" on page 7. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 18
the captive screws that secure the base cover to the computer base. Postrequisites 1 Replace the battery. See "Replacing the Battery" on page 13. 2 Follow the instructions in "After Working Inside Your Computer" on page 9. 18 | Base Cover - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 19
7 Memory Module(s) WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in "Before You Begin" on page 7. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/ - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 20
the base cover. See "Replacing the Base Cover" on page 18. 2 Replace the battery. See "Replacing the Battery" on page 13. 3 Follow the instructions in "After Working Inside Your Computer" on page 9. 4 Turn on the computer. As the computer boots, it detects the memory module(s) and automatically - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 21
8 Hard Drive WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in "Before You Begin" on page 7. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 22
Procedure 1 Remove the screws that secure the hard-drive assembly to the computer base. 2 Using the pull-tab, slide the hard-drive assembly toward the back of the computer to disconnect the hard-drive assembly from the connector on the system board. 3 Lift the hard-drive assembly out of the computer - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 23
4 Remove the screws that secure the hard-drive bracket to the hard drive. 5 Lift the hard drive off the hard-drive bracket. 3 2 1 1 screws (4) 3 hard-drive bracket 2 hard drive Replacing the Hard Drive Procedure 1 Remove the new hard drive from its packaging. Save the original packaging for - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 24
Postrequisites 1 Replace the base cover. See "Replacing the Base Cover" on page 18. 2 Replace the battery. See "Replacing the Battery" on page 13. 3 Follow the instructions in "After Working Inside Your Computer" on page 9. 24 | Hard Drive - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 25
9 Optical Drive WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in "Before You Begin" on page 7. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 26
. Postrequisites 1 Replace the base cover. See "Replacing the Base Cover" on page 18. 2 Replace the battery. See "Replacing the Battery" on page 13. 3 Follow the instructions in "After Working Inside Your Computer" on page 9. 26 | Optical Drive - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 27
10 Palm Rest WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in "Before You Begin" on page 7. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 28
2 Turn the computer over. 3 Lift the connector latches and pull the pull-tabs to disconnect the power-button board cable, touchpad cable, and hot-key board cable from the connectors on the system board. 12 34 5 1 power-button board cable 3 connector latch 5 hot-key board cable 2 pull-tab 4 - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 29
4 Remove the screws that secure the palm rest to the computer base. 5 Using your fingertips, pry out the palm rest from the computer base. CAUTION: Carefully separate the palm rest from the display assembly to avoid damage to the display assembly. 1 2 1 screws (6) 2 palm rest Palm Rest | 29 - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 30
6 Without pulling hard on the palm-rest assembly, place it away from the display as shown in the illustration below. 7 Lift the connector latch and pull the pull-tab to disconnect the status-lights cable from the connector on the system board. 8 Lift the palm-rest assembly off the computer base. 12 - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 31
" on page 18. 2 Replace the keyboard. See "Replacing the Keyboard" on page 16. 3 Replace the battery. See "Replacing the Battery" on page 13. 4 Follow the instructions in "After Working Inside Your Computer" on page 9. Palm Rest | 31 - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 32
32 | Palm Rest - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 33
11 Power-Adapter Port WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in "Before You Begin" on page 7. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/ - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 34
" on page 18. 3 Replace the keyboard. See "Replacing the Keyboard" on page 16. 4 Replace the battery. See "Replacing the Battery" on page 13. 5 Follow the instructions in "After Working Inside Your Computer" on page 9. 34 | Power-Adapter Port - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 35
12 Display Assembly WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in "Before You Begin" on page 7. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/ - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 36
the display cable from the connector on the system board. 3 Make a note of the display cable routing and remove the cable from the routing guides. 4 Remove the screws that secure the display assembly to the computer base. 5 Lift the display assembly off the computer base. 5 1 2 1 display assembly - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 37
to the computer base. 2 Route the display cable through the routing guides and connect the display cable to the connector on the system board. the battery. See "Replacing the Battery" on page 13. 5 Follow the instructions in "After Working Inside Your Computer" on page 9. Removing the Display Bezel - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 38
" on page 18. 4 Replace the keyboard. See "Replacing the Keyboard" on page 16. 5 Replace the battery. See "Replacing the Battery" on page 13. 6 Follow the instructions in "After Working Inside Your Computer" on page 9. 38 | Display Assembly - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 39
Removing the Hinge Caps Prerequisites 1 Remove the battery. See "Removing the Battery" on page 13. 2 Remove the keyboard. See "Removing the Keyboard" on page 15. 3 Remove the base cover. See "Removing the Base Cover" on page 17. 4 Remove the palm rest. See "Removing the Palm Rest" on page 27. 5 - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 40
Replacing the Hinge Caps Procedure 1 Slide the antenna cables through the slot on the hinge cover 2 Align the screw holes on the hinge caps with the screw holes on the display cover. 3 Replace the screws that secure the hinge caps to the display cover. Postrequisites 1 Replace the display bezel. See - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 41
Procedure 1 Remove the screws that secure the display panel to the display cover. 2 Carefully lift the display panel and turn it over. 1 1 display cover 3 screws (8) 2 3 2 display panel Display Assembly | 41 - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 42
3 Peel and lift the tape that secures the display cable to the display-board connector and disconnect the display cable. 4 Peel the display cable from the back of the display panel. 1 3 2 1 display cable 3 tape 2 display-board connector 42 | Display Assembly - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 43
5 Turn the display panel over and place it on a clean surface. 6 Remove the screws that secure the display-panel brackets to the display panel. 7 Remove the display-panel brackets off the display panel. 3 2 1 1 screws (8) 3 display panel 2 display-panel brackets (2) Replacing the Display Panel - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 44
" on page 18. 6 Replace the keyboard. See "Replacing the Keyboard" on page 16. 7 Replace the battery. See "Replacing the Battery" on page 13. 8 Follow the instructions in "After Working Inside Your Computer" on page 9. 44 | Display Assembly - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 45
13 Camera Module WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in "Before You Begin" on page 7. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 46
Procedure 1 Remove the screws that secure the display panel to the display cover. 2 Carefully lift the display panel and turn it over. 1 2 3 1 display cover 3 screws (8) 2 display panel 46 | Camera Module - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 47
3 Disconnect the camera cable from the connector on the camera module. . 1 2 1 camera module 2 camera cable 4 Remove the screw that secures the camera module to the display cover. 5 Lift the camera module off the display cover. 4 3 2 1 1 tab 3 camera module 2 display cover 4 screw Camera - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 48
" on page 18. 5 Replace the keyboard. See "Replacing the Keyboard" on page 16. 6 Replace the battery. See "Replacing the Battery" on page 13. 7 Follow the instructions in "After Working Inside Your Computer" on page 9. 48 | Camera Module - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 49
" on page 17. 3 Remove the memory module(s). See "Removing the Memory Module(s)" on page 19. 4 Follow the instructions from step 1 to step 3 in "Removing the Hard Drive" on page 21. 5 Follow the instructions from step 1 to step 2 in "Removing the Optical Drive" on page 25. 6 Remove the keyboard. See - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 50
Tag is stored in the system board. You must enter the Service Tag in the BIOS after you replace the system-board assembly. NOTE: Before disconnecting the cables from the system board, note the location of the - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 51
3 Disconnect the power-adapter port cable, fan cable, and speakers cable from the connectors on the system board. 4 Peel the tape that secures the display cable to the system board and then disconnect the display cable from the connector on the system board. 5 Lift the connector latch and pull the - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 52
6 Remove the screws that secure the system board to the computer base. 7 Lift the system board to disconnect the connector on the system board from the connector on the daughter board. 8 Lift the system board at an angle and release the connectors on the system board from the slots on the computer - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 53
the Base Cover" on page 18. 7 Replace the battery. See "Replacing the Battery" on page 13. 8 Follow the instructions in "After Working Inside Your Computer" on page 9. Entering the Service Tag in the BIOS 1 Turn on the computer. 2 Press during POST to enter the system setup program. 3 Navigate - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 54
54 | System Board - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 55
" on page 17. 3 Remove the memory module(s). See "Removing the Memory Module(s)" on page 19. 4 Follow the instructions from step 1 to step 3 in "Removing the Hard Drive" on page 21. 5 Follow the instructions from step 1 to step 2 in "Removing the Optical Drive" on page 25. 6 Remove the keyboard. See - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 56
Procedure 1 In sequential order (indicated on the thermal-cooling assembly), remove the screws that secure the thermal-cooling assembly to the system board. 2 Lift the thermal-cooling assembly off the system board. 1 thermal-cooling assembly 2 screws (7) 2 1 56 | Thermal-Cooling Assembly - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 57
sequential order (indicated on the thermal-cooling assembly), replace screws that secure the thermal-cooling assembly to the system board. Postrequisites 1 Follow the instructions from step 3 to step 10 in "Replacing the System Board" on page 52. 2 Replace the palm rest. See "Replacing the Palm Rest - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 58
58 | Thermal-Cooling Assembly - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 59
the keyboard. See "Removing the Keyboard" on page 15. 7 Remove the palm rest. See "Removing the Palm Rest" on page 27. 8 Follow the instructions from step 1 to step 8 in "Removing the System Board" on page 49. 9 Remove the thermal-cooling assembly. See "Removing the Thermal-Cooling Assembly" on - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 60
Procedure 1 To loosen the ZIF socket, use a small, flat-blade screwdriver and rotate the ZIF-socket cam screw counterclockwise until it comes to the cam stop. CAUTION: To ensure maximum cooling for the processor, do not touch the heat transfer areas on the processor thermal cooling assembly. The - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 61
processor module to the system board. Postrequisites 1 Replace the thermal-cooling assembly. See "Replacing the Thermal-Cooling Assembly" on page 57. 2 Follow the instructions from step 3 to step 10 in "Replacing the System Board" on page 52. 3 Replace the palm rest. See "Replacing the Palm Rest" on - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 62
62 | Processor - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 63
may explode if installed incorrectly. Replace the battery only with the same or equivalent type. Discard used batteries according to the manufacturer's instructions. Removing the Coin-Cell Battery CAUTION: Removing the coin-cell battery resets the BIOS settings to default. It is recommended that you - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 64
Procedure Using a plastic scribe, gently pry the coin-cell battery out of the battery socket on the system board. 3 2 1 1 battery socket 3 plastic scribe 2 coin-cell battery 64 | Coin-Cell Battery - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 65
-Cell Battery Procedure With the positive-side facing up, snap the coin-cell battery into the battery socket on the system board. Postrequisites 1 Follow the instructions from step 3 to step 10 in "Replacing the System Board" on page 52. 2 Replace the palm rest. See "Replacing the Palm Rest" on page - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 66
66 | Coin-Cell Battery - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 67
" on page 17. 3 Remove the memory module(s). See "Removing the Memory Module(s)" on page 19. 4 Follow the instructions from step 1 to step 3 in "Removing the Hard Drive" on page 21. 5 Follow the instructions from step 1 to step 2 in "Removing the Optical Drive" on page 25. 6 Remove the keyboard. See - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 68
Procedure 1 Remove the screws that secure the speakers to the computer base. 2 Lift the speakers along with its cable away from the computer base. 1 screws (4) 2 speakers 2 1 68 | Speakers - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 69
computer base and place the speakers on the computer base. 2 Replace the screws that secure the speakers to the computer base. Postrequisites 1 Follow the instructions from step 3 to step 10 in "Replacing the System Board" on page 52. 2 Replace the palm rest. See "Replacing the Palm Rest" on page - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 70
70 | Speakers - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 71
6 Remove the keyboard. See "Removing the Keyboard" on page 15. 7 Remove the palm rest. See "Removing the Palm Rest" on page 27. 8 Follow the instructions from step 1 to step 8 in "Removing the System Board" on page 49. 9 Remove the speakers. See "Removing the Speakers" on page 67. Media Card Reader - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 72
Procedure 1 Remove the screw that secures the Media Card Reader to the computer base. 2 Make note of the Media Card Reader cable routing. 3 Lift the Media Card Reader along with its cable away from the computer base. 2 1 1 Media Card Reader 2 screw 72 | Media Card Reader - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 73
screw that secures the Media Card Reader to the computer base. Postrequisites 1 Replace the speakers. See "Replacing the Speakers" on page 69. 1 Follow the instructions from step 3 to step 10 in "Replacing the System Board" on page 52. 2 Replace the palm rest. See "Replacing the Palm Rest" on page - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 74
74 | Media Card Reader - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 75
" on page 17. 3 Remove the memory module(s). See "Removing the Memory Module(s)" on page 19. 4 Follow the instructions from step 1 to step 3 in "Removing the Hard Drive" on page 21. 5 Follow the instructions from step 1 to step 2 in "Removing the Optical Drive" on page 25. 6 Remove the keyboard. See - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 76
Procedure 1 Remove the screws that secure the daughter board to the computer base. 2 Lift the daughter board away from the computer base. 2 1 1 daughter board 2 screws (4) 76 | Daughter Board - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 77
that secure the daughter board to the computer base. Postrequisites 1 Replace the display assembly. See "Replacing the Display Assembly" on page 37. 2 Follow the instructions from step 3 to step 10 in "Replacing the System Board" on page 52. 3 Replace the Mini-Card. See "Replacing the Mini-Card" on - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 78
78 | Daughter Board - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 79
you ordered a wireless Mini-Card with your computer, the card is already installed. Your computer has one half Mini-Card slot which supports a Wireless Local Area Network (WLAN) + Bluetooth combo card, Wi-Fi, and Worldwide Interoperability for Microwave Access (WiMax) cards. Removing the Mini-Card - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 80
3 Lift the Mini-Card out of the connector on the daughter board. CAUTION: When the Mini-Card is not in the computer, store it in protective antistatic packaging. For more information, see "Protecting Against Electrostatic Discharge" in the safety information that shipped with your computer. - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 81
The following table provides the wireless antenna cable color scheme for the Mini-Cards supported by your computer. Connectors on the Mini-Card WLAN + Bluetooth (2 cables) "Replacing the Battery" on page 13. 5 Follow the instructions in "After Working Inside Your Computer" on page 9. Mini-Card | 81 - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 82
82 | Mini-Card - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 83
.dell.com/support/downloads. 3 Locate the BIOS update file for your computer: NOTE: The Service Tag for your computer is located on a label at the bottom of your computer. For more information, see the Quick Start Guide that shipped with your computer. If you have your computer's Service Tag or - Dell Inspiron M521R 5525 | Inspiron M521R Owners Manual - Page 84
84 | Flashing the BIOS
Dell Inspiron 15R/M521R
Owner’s Manual
Computer model: Inspiron 5520/7520/5525
Regulatory model: P25F
Regulatory type: P25F001/P25F002