Latitude 7220 Rugged Extreme Tablet Service Manual Regulatory Model: T03H Regulatory Type: T03H003
Notes, cautions, and warnings NOTE: A NOTE indicates important information that helps you make better use of your product. CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid the problem. WARNING: A WARNING indicates a potential for property damage, personal injury, or death. © 2019 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its subsidiaries.
Contents 1 Working on your tablet.................................................................................................................. 6 Safety instructions.................................................................................................................................................................6 Before working inside your tablet..................................................................................................................................
WWAN card......................................................................................................................................................................... 38 Removing the WWAN card.......................................................................................................................................... 38 Installing the WWAN card............................................................................................................................................
Updating BIOS on systems with BitLocker enabled..................................................................................................78 Updating your system BIOS using a USB flash drive................................................................................................ 79 Updating the Dell BIOS in Linux and Ubuntu environments.....................................................................................79 Flashing the BIOS from the F12 One-Time boot menu.......................
1 Working on your tablet Safety instructions Prerequisites Use the following safety guidelines to protect your tablet from potential damage and to ensure your personal safety. Unless otherwise noted, each procedure in this document assumes that the following conditions exist: • • You have read the safety information that shipped with your tablet. A component can be replaced or, if purchased separately, installed by performing the removal procedure in reverse order.
NOTE: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal surface simultaneously as touching a connector on the back of the tablet. 7. Remove any installed ExpressCards or Smart Cards from the appropriate slots. Safety precautions The safety precautions chapter details the primary steps to be taken before performing any disassembly instructions.
ESD field service kit The unmonitored Field Service kit is the most commonly used service kit. Each Field Service kit includes three main components: antistatic mat, wrist strap, and bonding wire. Components of an ESD field service kit The components of an ESD field service kit are: • • • • • • • Anti-Static Mat – The anti-static mat is dissipative and parts can be placed on it during service procedures.
4. Keep the load close. The closer it is to your spine, the less force it exerts on your back. 5. Keep your back upright, whether lifting or setting down the load. Do not add the weight of your body to the load. Avoid twisting your body and back. 6. Follow the same techniques in reverse to set the load down. After working inside your tablet About this task After you complete any replacement procedure, ensure that you connect external devices, cards, and cables before turning on your tablet.
2 10 Major components of your system
Major components of your system Major components of your system 11
1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18.
3 Removing and installing components Recommended tools The procedures in this document require the following tools: • • • • Phillips #0 screwdriver Phillips #1 screwdriver Philips #2 screwdriver Plastic scribe NOTE: The #0 screw driver is for screws 0-1 and the #1 screw driver is for screws 2-4. Screw list NOTE: When removing screws from a component, it is recommended to note the screw type, the quantity of screws, and then place them in a screw storage box.
Component Screw type Quantity System board M2x5 11 M2x3 2 M1.6x5 2 M2x5 3 Rear camera Screw image Batteries Lithium-ion battery precautions CAUTION: • Exercise caution when handling Lithium-ion batteries. • Discharge the battery as much as possible before removing it from the system. This can be done by disconnecting the AC adapter from the system to allow the battery to drain. • Do not crush, drop, mutilate, or penetrate the battery with foreign objects.
Steps 1. Slide the battery release latch to the unlock position. 2. Slide the latch down to unlock the battery. 3. Lift the battery out of the battery bay. 4. Remove the battery from the tablet. Installing the batteries Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task NOTE: This tablet can accommodate two hot-swap capable batteries (Primary and optional).
Steps 1. Align the pins on the battery with the connector on the tablet. NOTE: Ensure that the metal pin of the battery is aligned in place. 2. Place the battery into the battery bay until it clicks into place. 3. Slide the battery latch to the locked state. 4. Ensure that the battery release latch is in the locked state. Next steps 1. Follow the procedure in after working inside your tablet. Subscriber Identification Module (SIM) card Removing the uSIM Prerequisites 1.
About this task The figure indicates the location of the uSIM and provides a visual representation of the removal procedure. Steps 1. Open the uSIM slot cap. 2. Press the uSIM card and slide it out of the slot. NOTE: Use a flat pointed scribe to ease removing the SIM. Inserting the uSIM Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure.
Steps 1. Insert the uSIM card in the slot until it is locked. 2. Close the uSIM slot cap to initial state. Next steps 1. Install the batteries. 2. Follow the procedure in after working inside your tablet. Stylus Removing the stylus Prerequisites 1. Follow the procedure in before working inside your tablet. About this task The figure indicates the location of the stylus and provides a visual representation of the removal procedure.
Steps Slide the stylus upward using the groove on the stylus pen. NOTE: Avoid pulling the stylus with the stretchable thread. The stylus is ready to assist you in using the rugged tablet. Installing the stylus 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 stylus and provides a visual representation of the installation procedure.
Steps Insert the stylus into the slot on the tablet. NOTE: When not in use, avoid hanging the stylus that is detached from its groove. Next steps 1. Follow the procedure in after working inside your tablet. Display assembly Removing the display assembly Prerequisites 1. Follow the procedure in before working inside your tablet. 2. Remove the batteries. About this task The figure indicates the location of the display assembly and provides a visual representation of the removal procedure.
Removing and installing components 21
Removing and installing components
Steps 1. Place the tablet on a flat and clean surface and remove the 19 (M2.5x5) screws that secure the display assembly to the chassis. 2. Flip the tablet. 3. Using a plastic scribe, gently pry the edges evenly to unlock the plastic clips that secure the display assembly to the chassis. NOTE: Tip of the plastic scribe should be inserted to avoid damage to the seal on the display assembly and to the clips that secure the display assembly to the chassis. 4. Flip the LCD panel by an angle less than 90°.
About this task The figure indicates the location of the component and provides a visual representation of the installation procedure.
Removing and installing components 25
Steps 1. Place the LCD panel by less than 90° and use a plastic scribe to connect the eDP cable to the connector on the system board. 2. Connect the function key cable to the connector on the system board. 3. Connect the touch cable to the connector on the system board. 4. Align the LCD panel on the chassis. 5. Press the edges of the display assembly to secure it to the chassis. 6. Flip the tablet. NOTE: Ensure to place the tablet on a flat surface. 7. Replace the 19 (M2.
Removing the function keys Prerequisites 1. Follow the procedure in before working inside your tablet. 2. Remove the batteries. 3. Remove the display assembly. About this task The figure indicates the location of the function keys and provides a visual representation of the removal procedure. Steps 1. Flip the display assembly. 2. Remove the six (M2x5) screws that secure the function keys board to the display assembly. 3.
Installing the function keys 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 function keys and provides a visual representation of the installation procedure. Steps 1. Align and place the function keys board on the display assembly. 2. Replace the six (M2x5) screws that secure the function keys board to the display assembly. Next steps 1. Install the display assembly. 2.
Heat sink Removing the heat-sink Prerequisites 1. Follow the procedure in before working inside your tablet. 2. Remove the batteries. 3. Remove the display assembly. About this task The figure indicates the location of the heat sink and provides a visual representation of the removal procedure. Steps 1. Remove the three (M2X3) screws and M2X5 screw that secure the heat-sink to the system board. NOTE: Remove the screws in the order of the callout numbers [1,2,3,4] as indicated on the heat sink.
NOTE: Ensure not to bend the heatsink pipe while removing the heatsink from the SSD. Do not remove the heatsink by pulling on the pipe. Carefully pry the cover from the SSD using a plastic scribe. 2. Lift the heat-sink away from the system board. Installing the heat-sink Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure.
Next steps 1. Install the display assembly. 2. Install the batteries. 3. Follow the procedure in after working inside your tablet. System fan Removing the system fan Prerequisites 1. 2. 3. 4. Follow the procedure in before working inside your tablet. Remove the batteries. Remove the display assembly. Remove the heat-sink. About this task The figure indicates the location of the system fan and provides a visual representation of the removal procedure. Steps 1.
3. Remove the four (M2x5) screws that secure the system fan to the system board. 4. Lift the system fan off the system board. Installing the system fan 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 system fan and provides a visual representation of the installation procedure. Steps 1. Align the screws on the system fan with the screw holes on the system board. 2.
4. Follow the procedure in after working inside your tablet. Solid-state drive Removing the M.2 2230 solid-state drive Prerequisites 1. 2. 3. 4. Follow the procedure in before working inside your tablet. Remove the batteries. Remove the display assembly. Remove the heat-sink. About this task The figure indicates the location of the M.2 2230 solid-state drive and provides a visual representation of the removal procedure. Steps 1.
Steps 1. Remove the (M2x3) screw that secures the solid-state drive to the system board. 2. Slide and remove the solid-state drive from the solid-state drive slot on the system board. Installing M.2 2230 solid-state drive Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task The following image indicates the location of the M.
About this task The following image indicates the location of the M.2 2280 solid-state drive and provides a visual representation of the installation procedure: Steps 1. Align the notch on the solid-state drive with the tab on the solid-state drive slot. 2. Replace the screw (M2x3) that secures the solid-state drive module to the system board. Next steps 1. 2. 3. 4. Install the heat-sink. Install the display assembly. Install the batteries. Follow the procedure in after working inside your tablet.
Steps 1. Remove the screw (M2x3) that secures the WLAN card bracket to the WLAN card. 2. Remove the WLAN card bracket from the WLAN card. 3. Disconnect the antenna cables from the WLAN card. 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.
Steps 1. Slide the wireless card at an angle into the wireless-card slot. 2. Connect the antenna cables to the WLAN card. The following table provides the antenna-cable color scheme for the WLAN card that is supported by your tablet. Table 2. Connectors on the wireless card Antenna Cable Color Main (white triangle) White Auxiliary (black triangle) Black 3. Place the WLAN card bracket on the WLAN card. 4. Replace the screw (M2x3) to secure the WLAN card bracket to the WLAN card. Next steps 1.
WWAN card Removing the WWAN card Prerequisites 1. Follow the procedure in before working inside your tablet. 2. Remove the batteries. 3. Remove the display assembly. About this task The figure indicates the location of the WWAN card and provides a visual representation of the removal procedure. Steps 1. Remove the screw (M2x3) that secures the WWAN card bracket to the WWAN card. 2. Remove the WWAN card bracket from the WWAN card. 3. Disconnect the antenna cables from the WWAN card. 4.
Installing the WWAN card 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 WWAN card and provides a visual representation of the installation procedure. Steps 1. Slide the WWAN card at an angle into the WWAN card slot. 2. Connect the antenna cables to the WWAN card. The following table provides the antenna-cable color scheme for the WWAN card that is supported by your tablet.
Next steps 1. Install the display assembly. 2. Install the batteries. 3. Follow the procedure in after working inside your tablet. Microphone Removing the microphone Prerequisites 1. Follow the procedure in before working inside your tablet. 2. Remove the batteries. 3. Remove the display assembly. About this task The figure indicates the location of the microphone and provides a visual representation of the removal procedure. Steps 1.
About this task The figure indicates the location of the microphone and provides a visual representation of the installation procedure. Steps 1. Align the screw hole on the integrated microphone assembly circuit board with the screw hole on the chassis. 2. Replace the screw (M2x5) that secures the integrated microphone assembly circuit board to the chassis and connect the microphone cable to the connector on the system board. Close the latch to secure the cable. Next steps 1. Install the display assembly.
Removing and installing components
Steps 1. Open the lens cover by sliding the camera shutter towards right. 2. Using a plastic scribe, lift the camera lens shutter. 3. Remove the (M2x3) screw that secures the camera cover on the tablet chassis. 4. Using a plastic scribe, lift the front camera from the tablet chassis. 5. Lift the lens case at the edge to insert the plastic scribe in the gap. 6. Disconnect the camera cable that secures the cable to the system board. 7.
Removing and installing components
Steps 1. Align the front camera circuit board over the camera slot. NOTE: Opposite side of the camera circuit board is placed to connect cable in the connector. 2. Connect the front camera cable and plug in the cable to the connector. 3. Flip the front camera circuit board. 4. Align front camera circuit board with screw hole. 5. Place the camera lens case to the camera placeholder. 6. Replace the screw (M2x3) to secure the front camera circuit board on the tablet chassis. 7.
NOTE: Removing the coin-cell battery resets the BIOS setup programs settings to default. It is recommended that you note the BIOS setup programs settings before removing the coin-cell battery. About this task The figure indicates the location of the coin-cell battery and provides a visual representation of the removal procedure. Steps 1. Disconnect the coin-cell battery cable from the system board. 2. Move the fingerprint reader cable and microSD card cable over the coin-cell battery. 3.
Steps 1. Adhere the coin-cell battery to the slot on the system board. 2. Place the fingerprint cable and microSD card cable on the coin-cell battery. 3. Connect the coin-cell battery cable to the connector on the system board. Next steps 1. Install the display assembly. 2. Install the batteries. 3. Follow the procedure in after working inside your tablet. System board Removing the system board Prerequisites 1. Follow the procedure in before working inside your tablet. 2. Remove the batteries. 3.
4. 5. 6. 7. 8. Remove the heat-sink. Remove the system fan. Remove the solid-state drive. Remove the WLAN. Remove the WWAN. About this task The figure indicates the location of the system board and provides a visual representation of the removal procedure.
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Removing and installing components
Steps 1. Disconnect the antenna cable from the system board. 2. Disconnect the radio antenna cables and coin-cell battery cable from the system board. 3. Disconnect the antenna cables from the system board. 4. Disconnect the GPS cable from the system board. 5. Peel the adhesive tapes off the connectors from the system board. 6.
Installing the system 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 system board and provides a visual representation of the installation procedure.
Removing and installing components 53
Steps 1. Place the system board on the tablet chassis.
2. Replace the six (M2x5) screws that secure the system board to the tablet chassis. 3. Affix the adhesive tape and replace the (M2x5) screw that secures it to the system board. 4. Affix the conductive cloth that secures the camera MIPI plate on the system board. 5. Replace the two (M2x3) screws that secure the camera MIPI plate on the system board. 6. Connect the OpExpansion module pogo connector cable to the connector on the system board. 7.
Steps 1. Peel the copper adhesive tape and remove the three (M2x5) screws that secure the rear camera circuit board on the tablet chassis. 2. Remove the back camera board cable from the chassis. Installing the rear 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 rear camera and provides a visual representation of the installation procedure.
Steps 1. Align the screw holes on the rear camera circuit board with the screw holes on the tablet chassis. 2. Replace the three (M2x5) screws to secure the rear camera circuit board to the chassis. Next steps 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. Install the system board. Install the coin-cell battery. Install the front camera. Install the microphone. Install the WWAN. Install the WLAN. Install the solid-state drive. Install the system fan. Install the heat-sink. Install the display assembly.
Steps 1. Disconnect the DC-in cable from the connector and remove the (M2x5) screw that secures the system board to the system chassis. 2. Lift the latch, and disconnect the micro serial port cable from the connector. 3. Remove the four (M2x5) screws and two (M1.6x5) screws that secure the metal bracket to the system chassis. 4. Lift and remove the metal bracket from system. 5. Remove the (M2x5) screw that secures the DC-in port and serial port to the system chassis. 6.
Steps 1. Insert the DC-in port and micro serial port into the slot on the chassis. 2. Replace the (M2x5) screw that secures the DC-in port and serial port to the system chassis and align the rubber grommet to slide in the channel . 3. Align the metal brackets that secure the ports on the system chassis. 4. Replace the four (M2x5) screws and two (M1.6x5) screws that secure the metal bracket to the system chassis. 5. Connect the serial port cable into the connector. 6.
Docking Board Removing the docking board Prerequisites 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. Follow the procedure in before working inside your tablet. Remove the batteries. Remove the display assembly. Remove the heat-sink. Remove the system fan. Remove the solid-state drive. Remove the WLAN. Remove the WWAN. Remove the microphone. Remove the front camera. Remove the coin-cell battery. Remove the system board.
Installing the docking 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 docking board and provides a visual representation of the installation procedure. Steps 1. Connect the docking board cable to the connector. NOTE: Slide the cable through the connector clips, and release the latch. 2.
Smart card reader and wireless passthrough daughterboard Removing the smart card reader and wireless passthrough daughterboard Prerequisites 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. Follow the procedure in before working inside your tablet. Remove the batteries. Remove the display assembly. Remove the heat-sink. Remove the system fan. Remove the solid-state drive. Remove the WLAN. Remove the WWAN. Remove the microphone. Remove the front camera. Remove the coin-cell battery. Remove the system board.
Removing and installing components 63
Steps 1. Flip and disconnect the smart card reader cable from the connector. 2. Remove the two (M2x5) screws that secure the wireless passthrough daughterboard to the system chassis. 3. Remove the copper adhesive shield, and lift the wireless passthrough daughterboard away from the system. 4. Remove the eight (M2x5) screws that secure the smart card reader to the system chassis.
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Steps 1. Align the smart card reader, and replace the eight (M2x5) screws that secure smart card reader to the system chassis. 2. Align and replace the wireless passthrough daughterboard on the system chassis. 3. Replace the copper adhesive shield to secure the wireless passthrough daughterboard to the smart card reader holder. 4. Replace the two (M2x5) screws that secure the wireless passthrough daughterboard to the system chassis. 5. Connect the smart card reader cable to the connector. 6.
4 System setup CAUTION: Unless you are an expert computer user, do not change the settings in the BIOS Setup program. Certain changes can make your computer work incorrectly. NOTE: Before you change BIOS Setup program, it is recommended that you write down the BIOS Setup program screen information for future reference. Use the BIOS Setup program for the following purposes: • • • Get information about the hardware installed in your computer, such as the amount of RAM and the size of the hard drive.
Keys Navigation Tab Moves to the next focus area. Esc Moves to the previous page until you view the main screen. Pressing Esc in the main screen displays a message that prompts you to save any unsaved changes and restarts the system. Boot Sequence Boot sequence enables you to bypass the System Setup–defined boot device order and boot directly to a specific device (for example: optical drive or hard drive).
Option Description • • • • Date/Time Always, Except Internal HDD—Default Always, Except Internal HDD&PXE Always Never Allows you to set the date and time settings. Changes to the system date and time take effect immediately. . System information Table 5. System Configuration Option Description SATA Operation Allows you to configure the operating mode of the integrated hard drive controller.
Option Description • • • Keyboard Backlight Timeout on AC The Keyboard Backlight Timeout dims out with AC option. The main keyboard illumination feature is not affected. Keyboard Illumination will continue to support the various illumination levels. This field has an effect when the backlight is enabled.
Option Description Miscellaneous Devices Allows you to enable or disable the following devices: • • • • • • Enable User-Facing Camera (enabled by default) Enable World-Facing Camera (enabled by default) Enable Dedicated GPS Radio (enabled by default) Enable Secure Digital (SD) Card (enabled by default) Secure Digital (SD) Card Boot Secure Digital (SD) Card Read-Only Mode Video Option Description LCD Brightness Allows you to set the display brightness depending up on the power source—On Battery and O
Option Description • • • • • • PPI Bypass for Enable Commands (default) PPI Bypass for Disable Commands PPI Bypass for Clear Commands Attestation Enable (default) Key Storage Enable (default) SHA-256 (default) Choose any one option: • • Absolute Disabled Enabled (default) This field lets you Enable, Disable or Permanently Disable the BIOS module interface of the optional Absolute Persistence Module service from Absolute Software.
Option Description • • • • Append from File- Adds a key to the current database from a user-selected file Delete- Deletes the selected key Reset All Keys- Resets to default setting Delete All Keys- Deletes all the keys NOTE: If you disable the Custom Mode, all the changes made will be erased and the keys will restore to default settings. Intel Software Guard Extensions Table 8.
Option Description • Enable Intel TurboBoost This option is set by default. Hyper-Thread Control Allows you to enable or disable the HyperThreading in the processor. • • Disabled Enabled—Default Power management Option Description Lid Switch Allows you to disable the lid switch so the screen does not shut off when lid is closed. Default setting: Enable Lid Switch is selected. AC Behavior Allows you to enable or disable the computer from turning on automatically when an AC adapter is connected.
Option Description • • Primarily AC use Custom If Custom Charge is selected, you can also configure Custom Charge Start and Custom Charge Stop. NOTE: All charging mode may not be available for all the batteries. To enable this option, disable the Advanced Battery Charge Configuration option. Battery#2 Charge Configuration Allows you to select the charging mode for the battery. The options are: • • • • • Adaptive—enabled by default Standard—Fully charges your battery at a standard rate.
Option Description Fastboot Allows you to speed up the boot process by bypassing some of the compatibility steps. The options are: • • • Extended BIOS POST Time Minimal—enabled by default Thorough Auto Allows you to create an extra preboot delay. The options are: • • • 0 seconds—enabled by default.
Wireless Allows you to enable or disable the internal wireless devices. All the options are enabled by default. Table 10.
Option Description • • SupportAssist OS Recovery 2—Default 3 The SupportAssist OS Recovery option will enable or disable the boot flow for SupportAssist OS Recovery tool in the event of certain system errors. • SupportAssist OS Recovery This option is set by default. About License Information: It contains the Copyright information. Updating the BIOS in Windows Prerequisites It is recommended to update your BIOS (System Setup), when you replace the system board or if an update is available.
reinstall. For more information about this subject, see Knowledge Article: https://www.dell.com/support/article/ sln153694 Updating your system BIOS using a USB flash drive About this task If the system cannot load into Windows but there is still a need to update the BIOS, download the BIOS file using another system and save it to a bootable USB Flash Drive. NOTE: You will need to use a bootable USB Flash drive. Please refer to the following article for further details: https:// www.dell.
Most Dell systems built after 2012 have this capability and you can confirm by booting your system to the F12 One-Time Boot Menu to see if BIOS FLASH UPDATE is listed as a boot option for your system. If the option is listed, then the BIOS supports this BIOS update option. NOTE: Only systems with BIOS Flash Update option in the F12 One-Time Boot Menu can use this function.
4. Select external USB device 5. Once the file is selected, Double click the flash target file, then press submit .
6. Click the Update BIOS then system will reboot to flash the BIOS. 7. Once complete, the system will reboot and the BIOS update process is completed. System and setup password Table 12. System and setup password Password type Description System password Password that you must enter to log on to your system. Setup password Password that you must enter to access and make changes to the BIOS settings of your computer. You can create a system password and a setup password to secure your computer.
NOTE: System and setup password feature is disabled. Assigning a system setup password Prerequisites You can assign a new System or Admin Password only when the status is in Not Set. About this task To enter the system setup, press F2 immediately after a power-on or re-boot. Steps 1. In the System BIOS or System Setup screen, select Security and press Enter. The Security screen is displayed. 2. Select System/Admin Password and create a password in the Enter the new password field.
5 Troubleshooting Enhanced Pre-Boot System Assessment (ePSA) diagnostics About this task The ePSA diagnostics (also known as system diagnostics) performs a complete check of your hardware. The ePSA is embedded with the BIOS and is launched by the BIOS internally.
• • Computer is running on battery and the battery has more than 5 percent charge. Computer is in sleep state, hibernation, or turned off. The power and battery-status light blinks amber along with beep codes indicating failures. For example, the power and battery-status light blinks amber two times followed by a pause, and then blinks white three times followed by a pause. This 2,3 pattern continues until the computer is turned off indicating no memory or RAM is detected.
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. Steps 1. Turn off your computer. 2. Turn off the modem. 3. Turn off the wireless router. 4. Wait for 30 seconds. 5. Turn on the wireless router. 6. Turn on the modem. 7.
6 Getting help Topics: • Contacting Dell Contacting Dell Prerequisites NOTE: If you do not have an active Internet connection, you can find contact information on your purchase invoice, packing slip, bill, or Dell product catalog. About this task Dell provides several online and telephone-based support and service options. Availability varies by country and product, and some services may not be available in your area. To contact Dell for sales, technical support, or customer service issues: Steps 1.
