Dell Latitude 7390 Owner'S Manual Download Page 1

Page: 1 / 82

Dell Latitude 7390

Owner's Manual

Regulatory Model: P28S
Regulatory Type: P28S002
November 2022
Rev. A03

Summary of Contents for Latitude 7390

Page 1: ...Dell Latitude 7390 Owner s Manual Regulatory Model P28S Regulatory Type P28S002 November 2022 Rev A03 ...

Page 2: ...mage 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 2017 2022 Dell Inc or its subsidiaries All rights reserved Dell Technologies Dell and other trademarks are trademarks of Dell Inc or its subsidiaries Other trademarks may be trademarks of their respective owners ...

Page 3: ...over 15 Battery 15 Lithium ion battery precautions 15 Removing 3 cell battery 15 Installing 3 cell battery 16 Removing 4 cell battery 16 Installing 4 cell battery 17 PCIe Solid State Drive SSD 17 Removing PCIe SSD 17 Removing PCIe SSD without bracket 18 Installing PCIe SSD 19 M2 SATA Solid State Drive SSD 20 Removing SATA SSD 20 Installing SATA SSD 20 Speaker 21 Removing speaker module 21 Installi...

Page 4: ...y hinge Cap 37 Installing display hinge Cap 37 System board 38 Removing system board 38 Installing system board 42 Keyboard assembly 43 Installing keyboard assembly 43 Removing keyboard assembly 43 Keyboard lattice and Keyboard 46 Removing keyboard from keyboard tray 46 Installing keyboard to keyboard tray 46 Palm rest 47 Replacing palm rest 47 Chapter 3 Technology and components 49 USB features 4...

Page 5: ...avior 65 Manageability 66 Virtualization Support options 66 Wireless screen options 66 Maintenance 67 System Log 67 System and setup password 67 Assigning a system setup password 68 Deleting or changing an existing system setup password 68 Updating the BIOS 69 Updating the BIOS in Windows 69 Updating the BIOS in Linux and Ubuntu 69 Updating the BIOS using the USB drive in Windows 69 Updating the B...

Page 6: ...M BIST 78 LCD Power rail test L BIST 78 LCD Built in Self Test BIST 78 Diagnostic LED 79 Recovering the operating system 80 Real Time Clock reset 80 Backup media and recovery options 80 WiFi power cycle 80 Drain residual flea power perform hard reset 81 Chapter 8 Contacting Dell 82 6 Contents ...

Page 7: ...y such as watches bracelets or rings prior to bonding yourself and the equipment Electrostatic discharge ESD protection ESD is a major concern when you handle electronic components especially sensitive components such as expansion cards processors memory DIMMs and system boards Very slight charges can damage circuits in ways that may not be obvious such as intermittent problems or a shortened prod...

Page 8: ...p prior to each service call and at a minimum test once per week A wrist strap tester is the best method for doing this test If you do not have your own wrist strap tester check with your regional office to find out if they have one To perform the test plug the wrist strap s bonding wire into the tester while it is strapped to your wrist and push the button to test A green LED is lit if the test i...

Page 9: ...ent also called latent or walking wounded failure Perform the following steps to prevent ESD damage Use a wired ESD wrist strap that is properly grounded The use of wireless anti static straps is no longer allowed they do not provide adequate protection Touching the chassis before handling parts does not ensure adequate ESD protection on parts with increased sensitivity to ESD damage Handle all st...

Page 10: ...puter Do not use batteries designed for other Dell computers Steps 1 Connect any external devices such as a port replicator or media base and replace any cards such as an ExpressCard 2 Connect any telephone or network cables to your computer CAUTION To connect a network cable first plug the cable into the network device and then plug it into the computer 3 Connect your computer and all attached de...

Page 11: ...Table 1 Latitude 7390 screw size list Component M2 5 x 6 M2 x 5 M2 5 x 3 5 M2 x 3 M2 5 x 4 M2 x 2 5 M2 x 2 Back cover 8 captive screws Battery 3 cell 1 Battery 4 cell 2 SSD module 1 Heat sink module 4 System fan 2 Speaker 4 WWAN card 1 WLAN card 1 Power connector port 1 ESD bracket 1 EDP bracket 2 Touchpad buttons 2 Fingerprint reader 1 LED board 1 Smart card reader cage 2 Keyboard Lock bracket 1 ...

Page 12: ...licable for systems that are shipped with WWAN module CAUTION Removing the SIM card when the computer is On may cause data loss or damage the card Ensure that your computer is turned off or the network connections are disabled Steps 1 Insert a paperclip or a SIM card removal tool into the pinhole on the SIM card tray 1 2 Use a scribe to pull the SIM card tray 2 3 Remove the SIM card if a SIM card ...

Page 13: ...ving base cover Steps 1 Follow the procedure in Before working inside your computer 2 To release the base cover a Loosen the M2 5 x 6 captive screws 8 that secure the base cover to the computer 1 NOTE Exercise caution when loosening the screws Angle the screwdriver to match the head of the front corners of screw to avoid a possible stripped screw head b Use a plastic scribe to release the base cov...

Page 14: ... loosening the screws Angle the screwdriver to match the head of the screw front corners on the laptop base cover to avoid a possible stripped screw head 3 Lift the base cover from the computer 14 Removing and installing components ...

Page 15: ...ace of the battery Do not bend the battery Do not use tools of any kind to pry on or against the battery Ensure any screws during the servicing of this product are not lost or misplaced to prevent accidental puncture or damage to the battery and other system components If the battery gets stuck inside your computer as a result of swelling do not try to release it as puncturing bending or crushing ...

Page 16: ...e M2 x 5 screw to secure the battery to the computer 4 Install the base cover 5 Follow the procedure in After working inside your computer Removing 4 cell battery Steps 1 Follow the procedure in Before working inside your computer 2 Remove the base cover 3 To remove the battery a Disconnect the battery cable from the connector on the system board 1 b Remove the M2 x 5 screw 2 that secure the batte...

Page 17: ...ttery to the computer 4 Install the base cover 5 Follow the procedure in After working inside your computer PCIe Solid State Drive SSD Removing PCIe SSD Steps 1 Follow the procedure in Before working inside your computer 2 Remove the base cover 3 Disconnect the battery cable from the connector on the system board 4 To remove the PCIe SSD a Loosen the M2 x3 captive screw that secures the SSD bracke...

Page 18: ...r 3 Disconnect the battery cable from the connector on the system board 4 To remove the PCIe SSD a Loosen the M2 0x3 0 captive screw that secure the SSD bracket 1 b Slightly lift the SSD and pull out from its connector 2 NOTE Ensure to lift the PCle SSD card by an angle NOT more than 30 18 Removing and installing components ...

Page 19: ...o install the bracket is the system is shipped with bracket 3 Tighten the M2 x 3 screws to secure it the SSD bracket 4 Connect the battery cable to the connector on the system board 5 Install the base cover 6 Follow the procedure in After working iinside your computer NOTE For models shipped with NVMe SSDs the SSD do not require installation of a thermal plate over the SSD neither SATA SSDs requir...

Page 20: ... a Remove the M2 x 3 screw that secures the SSD 1 b Slide and lift the SSD to disconnect it from the connector 2 Installing SATA SSD Steps 1 Insert the SATA SSD card into the connector 2 Tighten the screw to secure the SATA SSD to the system board 3 Connect the battery cable to the connector on the system board 4 Install the base cover 5 Follow the procedure in After working inside your computer 2...

Page 21: ...ing clip NOTE Use a plastic scribe to release the cable from the connector Do not pull the cable as it may result in breakage b Un route the speaker cable from the routing clips 2 c Remove the tape that secures the speaker cables to the touchpad board 3 5 To remove the speaker module a Remove the M2 0x3 0 screws 4 that secure the speaker module to the computer 1 b Lift the speaker module from the ...

Page 22: ...he base cover 6 Follow the procedure in After working inside your computer Coin cell battery Removing the coin cell battery Steps 1 Follow the procedure in Before working inside your computer 2 Remove the base cover 3 Disconnect the battery cable from the connector on the system board 4 To remove the coin cell battery a Disconnect the coin cell battery cable from the connector on the system board ...

Page 23: ...the connector on the system board 5 Install the base cover 6 Follow the procedure in After working inside your computer WWAN card Removing WWAN card Steps 1 Follow the procedure in Before working inside your computer 2 Remove the base cover 3 Disconnect the battery cable from the connector on the system board 4 To remove the WWAN card a Remove the M2 0 x 3 0 screw that secures the metal bracket to...

Page 24: ... Ensure to lift the WWAN card by an angle NOT more than 35 Installing WWAN card Steps 1 Insert the WWAN card into the connector on the system board 2 Connect the WWAN cables to the connectors on the WWAN card 3 Place the metal bracket and tighten the M2 0 x 3 0 screw to secure it to the computer 4 Connect the battery cable to the connector on the system board 5 Install the base cover 6 Follow the ...

Page 25: ...c Disconnect the WLAN cables from the connectors on the WLAN card 3 d Remove the WLAN card from the computer 4 NOTE Ensure NOT to pull the WLAN card more than 35 to avoid damage to pin Installing WLAN card Steps 1 Insert the WLAN card into the connector on the system board 2 Connect the WLAN cables to the connectors on the WLAN card 3 Place the metal bracket and tighten the M2 0 x 3 0 screw to sec...

Page 26: ...system board 4 To remove the memory module a Pull the clips securing the memory module until the module snaps out 1 b Remove the memory module from the connector on the system board 2 NOTE Ensure to lift the memory module card by an angle NOT more than 35 Installing memory module Steps 1 Insert the memory module into the connector until snaps in 2 Connect the battery cable to the connector on the ...

Page 27: ...em board 4 To remove the heat sink assembly NOTE To identify the number of screws see screw list a Remove the M2 x 5 screws 6 that secure the heat sink assembly to the system board 2 NOTE Remove the screws in order of the callout numbers 1 2 3 4 as printed on the heat sink assembly b Lift the heat sink assembly from the system board 3 c Disconnect the fan cable from the system board 1 Installing h...

Page 28: ...omputer Power connector port Removing power connector port Steps 1 Follow the procedure in Before working inside your computer 2 Remove the base cover 3 Disconnect the battery cable from the connector on the system board 4 To remove the power connector port a Disconnect the power connector port cable from the system board 1 NOTE Ensure to remove the adhesive tape that covers the connector NOTE Use...

Page 29: ...connector on the system board 5 Connect the battery cable to the connector on the system board 6 Install the base cover 7 Follow the procedure in After working inside your computer LED board Removing LED board Steps 1 Follow the procedure in Before working inside your computer 2 Remove the base cover 3 Disconnect the battery cable from the connector on the system board 4 To remove the LED board a ...

Page 30: ...uter 4 Installing LED board Steps 1 Insert the LED board into the slot on the computer 2 Tighten the M2 x 2 5 screw 1 to secure the LED board 3 Connect the LED cable to the system board 4 Connect the battery cable to the connector on the system board 5 Install the base cover 6 Follow the procedure in After working inside your computer Smart card module Removing smart card cage Steps 1 Follow the p...

Page 31: ...tor to avoid damage to the smart card head b Lift the smart card cable that is affixed to the touchpad module 2 NOTE Ensure to pull gently to release it with adhesive tape 7 To remove the smart card cage NOTE To identify the number of screws see screw list a Remove the M2 x 3 screws 2 that secure the smart card cage to the computer 1 b Slide and lift the smart card cage from the computer 2 Removin...

Page 32: ...all the SATA SSD 5 Install the PCIe SSD card 6 Connect the battery cable to the connector on the system board 7 Install the base cover 8 Follow the procedure in After working inside your computer Touchpad Removing touchpad buttons board Steps 1 Follow the procedure in Before working inside your computer 2 Remove the base cover 3 Disconnect the battery cable from the connector on the system board 4...

Page 33: ...from the routing clips from the touchpad buttons 5 To remove the touchpad buttons board a Disconnect the touchpad buttons board cable from the touchpad board 1 NOTE The touchpad buttons board cable is below the smart card cable Ensure to lift the latch to release the touchpad button board cable b Remove M2 0 x 2 5 screws 2 that secure the touchpad buttons board 2 c Lift the touchpad buttons board ...

Page 34: ...tor on the touchpad board 4 Affix the smart card cable and connect it to the connector on the computer 5 Install the speaker 6 Connect the battery cable to the connector on the system board 7 Install the base cover 8 Follow the procedure in After working inside your computer Display Assembly Removing display assembly Steps 1 Follow the procedure in Before working inside your computer 2 Remove the ...

Page 35: ...isplay cable that is connected to its connector on the system board e Remove the adhesive tape that secures the eDP cable 5 NOTE In touch configuration system you find both eDP cable and touch display cable that is secured with adhesive tape f Disconnect the cable from its connector on the system board 6 4 To remove the display assembly a Open the display of the computer and lay it on a flat surfa...

Page 36: ... configuration system you see touch display cable secure it with tapes along with the eDP cable 5 Connect the eDP cable to the connector on the system board NOTE For touch configuration system connect the touch display cable to its connector on the system board 6 Install the eDP metal bracket on the eDP cable and tighten the M2 x 3 screws 7 Route the WLAN and WWAN cables through the routing channe...

Page 37: ...c WLAN card d WWAN card e display assembly NOTE To identify the number of screws see screw list 3 Push the display hinge cap to the right 4 Remove the display hinge cap Installing display hinge Cap Steps 1 Insert the display hinge cap to the display assembly 2 Push the display hinge cap to the left to secure it Removing and installing components 37 ...

Page 38: ...ent 2 Remove the a SIM card b base cover c battery d memory module e PCle SSD f SATA SSD g WLAN card h WWAN card i heat sink assembly To identify the screws see screw list 3 To remove the memory module bracket a Remove the M2 x 3 screw 1 that secure memory module bracket to the system board 1 NOTE The DDR ESD bracket is a pre removal part when replacing the system board Ensure that the DDR ESD bra...

Page 39: ...ve the M2 x 3 screw 2 and lift the eDP cable bracket that secures to the system board 2 3 c Disconnect the clip that secures the cable to the system board 4 d Remove the adhesive tape that secures the eDP cable 5 e Disconnect the eDP cable from the system board 6 Removing and installing components 39 ...

Page 40: ...nnector port cables use a plastic scribe to release the cables from the connectors Do not pull the cable as it may result in breakage a speaker cable 1 b LED board cable 2 c coin cell battery cable 3 d touchpad cable and USH board cable 4 e power connector port 5 40 Removing and installing components ...

Page 41: ...stem board a Remove the M2 x 3 screws 8 that secure the system board 1 NOTE Ensure to remove the USB Type C bracket from system board b Lift the system board away from the computer 2 Removing and installing components 41 ...

Page 42: ...o the computer 6 Connect the speaker power connector LED board touchpad and USH cables to the connectors on the system board 7 Connect the eDP cable to the connector on the system board 8 Place the metal bracket over the eDP cable and tighten the M2 x 3 screws to secure it 9 Remove the metal bracket from the memory module connectors of the system board that was removed 10 Place the metal bracket o...

Page 43: ...connectors on the touchpad buttons board 4 Install the system board 5 Install the heat sink 6 Install the WLAN card 7 Install the WWAN card 8 Install the SSD card 9 Install the memory module 10 Connect the battery cable to the connector on the system board 11 Install the base cover 12 Follow the procedure in After working inside your computer Removing keyboard assembly About this task NOTE The key...

Page 44: ...board cable 3 12 To remove the keyboard assembly NOTE To identify the screws see screw list a Remove the M2 x 2 5 screws 19 that secure the keyboard 1 b Lift the keyboard assembly from the chassis 2 44 Removing and installing components ...

Page 45: ...13 Remove the screws 5 that secures the keypad to the keyboard chassis and lift the keyboard 1 2 Removing and installing components 45 ...

Page 46: ...bly 3 Remove the M2 0 x 2 0 screws that secure the keyboard to the keyboard assembly 1 4 Lift the keyboard away from the keyboard tray 2 Installing keyboard to keyboard tray Steps 1 Align the keyboard with the screw holders on the keyboard tray 2 Tighten the five M2 0 x 2 0 screws to secure the keyboard to the keyboard tray 46 Removing and installing components ...

Page 47: ...dure in Before working inside your computer 2 Remove the a base cover b battery c memory module d PCIe SSD e WLAN card f WWAN card g power connector port h heat sink assembly i coin cell battery j speaker k display assembly l system board m keyboard Removing and installing components 47 ...

Page 48: ...stall the a keyboard b system board c display assembly d speaker e coin cell battery f heatsink g power connector port h WLAN card i WWAN card j PCIe SSD k memory l battery m base cover 5 Follow the procedure in After working inside your computer 48 Removing and installing components ...

Page 49: ...management features Full duplex data transfers and support for new transfer types Backward USB 2 0 compatibility New connectors and cable The topics below cover some of the most commonly asked questions regarding USB 3 0 USB 3 1 Gen 1 Speed Currently there are 3 speed modes defined by the latest USB 3 0 USB 3 1 Gen 1 specification They are Super Speed Hi Speed and Full Speed The new SuperSpeed mod...

Page 50: ...y like external RAID storage systems Listed below are some of the available SuperSpeed USB 3 0 USB 3 1 Gen 1 products External Desktop USB 3 0 USB 3 1 Gen 1 Hard Drives Portable USB 3 0 USB 3 1 Gen 1 Hard Drives USB 3 0 USB 3 1 Gen 1 Drive Docks Adapters USB 3 0 USB 3 1 Gen 1 Flash Drives Readers USB 3 0 USB 3 1 Gen 1 Solid state Drives USB 3 0 USB 3 1 Gen 1 RAIDs Optical Media Drives Multimedia D...

Page 51: ...ble with existing DisplayPort monitors devices and cables 4 USB Power Delivery Up to 130W on supported computers Key Features of Thunderbolt 3 over USB Type C 1 Thunderbolt USB DisplayPort and power on USB Type C on a single cable features vary between different products 2 USB Type C connector and cables which are compact and reversible 3 Supports Thunderbolt Networking varies between different pr...

Page 52: ...e signaling of content types between display and source devices enabling a TV to optimize picture settings based on content type Additional Color Spaces Adds support for additional color models used in digital photography and computer graphics 4K Support Enables video resolutions far beyond 1080p supporting next generation displays that will rival the Digital Cinema systems used in many commercial...

Page 53: ...7th generation Intel Core i5 7300U 3M Cache up to 3 5 GHz vPro Intel 8th generation Intel Core i5 8250U 6M Cache Quad Core 3 4GHz Intel 8th generation Intel Core i5 8350U 6M Cache Quad Core 3 6GHz vPro Intel 8th generation Intel Core i7 8650U 8M Cache Quad Core 3 9GHz vPro Memory specifications Feature Specification Memory connector One DIMM slot Memory capacity 4 GB 8 GB and 16 GB Memory type DDR...

Page 54: ...ation Audio specifications Feature Specification Types Four channel high definition audio Controller Realtek ALC3246 Stereo conversion 24 bit analog to digital and digital to analog Internal interface High definition audio External interface Microphone in stereo headphones and headset combo connector Speakers Two Internal speaker amplifier 2 W RMS per channel Volume controls Hot keys Battery speci...

Page 55: ...nput voltage 100 V AC to 240 V AC Input current maximum 1 7 A 1 6 A Input frequency 50 Hz to 60 Hz Output current 3 34 A continuous and 4 62 A continuous Rated output voltage 19 5 V DC Weight 0 23 kg 0 51 lbs 65W and 0 32 kg 0 77 lbs 90W Dimensions 22 x 66 x 106 mm 65 W and 22 x 66 x 130 90 W or 0 87 x 2 60 x 4 17 inches 65 W and 0 87 x 2 60 x 5 12 inches 90 W Temperature range Operating 0 C to 40...

Page 56: ...one PowerShare capable Memory card reader MicroSD 4 0 card reader and One 3042 One 2280 M 2 slot Micro Subscriber Identity Module SIM card External tray tied to WWAN hinge up Docking port Dell Business Dock WD15 optional Dell Business Thunderbolt Dock TB16 optional Noble Wedge Lock slot External USB Type C Doc Express Card None AC adapter E5 65 W E5 65 W rug Only for India E5 90 W E4 65 W HF BFR P...

Page 57: ...or Type CMOS sensor technology CMOS sensor technology CMOS sensor technology Resolution Motion Video Up to 1280x720 0 92MP Up to 1280x720 0 92MP Up to 1280x720 0 92MP Resolution Still Image Up to 1280 x 720 0 92MP Up to 1280 x 720 0 92MP Up to 1280 x 720 0 92MP Imaging Rate Up to 30 frames per second Up to 30 frames per second Up to 30 frames per second Display Table 8 13 3 16 9 AG FHD Non Touch W...

Page 58: ...n 1920 x 1080 Megapixels 2 07 Pixels per Inch PPI 166 Contrast Ratio min 600 1 Response Time max 35msec rise fall Refresh Rate 60 Hz Horizontal View Angle 80 degrees Vertical View Angle 80 degrees Pixel Pitch 0 153 mm Power Consumption maximum 5 2 W Back Cover Variants Magnesium Alloy or Narrow Border Carbon with WLAN and or WWAN and HD IR Cam with Mic variants Dimensions and Weight Table 10 Dimen...

Page 59: ...65 C 40 F to 149 F Table 13 Relative humidity specifications Temperature Specifications Operating 10 to 90 non condensing Storage 5 to 95 non condensing Table 14 Altitude maximum specifications Temperature Specifications Operating 0 to 3048 m 0 to 10 000 ft Non operating Storage 0 to 10668 m Airborne contaminant level System specifications 59 ...

Page 60: ... wait until you see the desktop Then turn off your computer and try again Navigation keys NOTE For most of the System Setup options changes that you make are recorded but do not take effect until you restart the system Keys Navigation Up arrow Moves to the previous field Down arrow Moves to the next field Enter Selects a value in the selected field if applicable or follow the link in the field Spa...

Page 61: ...isplays Processor Type Core Count Processor ID Current Clock Speed Minimum Clock Speed Maximum Clock Speed Processor L2 Cache Processor L3 Cache HT Capable and 64 Bit technology Device Information Displays Primary Hard Drive Video Controller Video BIOS Version Video Memory Panel Type Native Resolution Audio Controller Wi Fi Device Cellular Device Bluetooth Device Battery Information Displays the b...

Page 62: ...or enable the permission to bypass the System and the Internal hard drive password when they are set The options are Disabled This option is selected by default Reboot bypass Password Change Allows you to enable or disable permission to the System and Hard Drive passwords when the admin password is set Allow Non Admin Password Changes This option is selected by default UEFI Capsule Firmware Update...

Page 63: ...ows you to prevent users from entering the setup when an Master password is set Hard disk passwords need to be cleared before the setting can be changed Enable Master Password Lockout This option is not selected by default SSM Security Mitigation Allows you to enable or disable additional UEFI SMM Security Mitigation protections The OS can use the feature to help protect the secure environment cre...

Page 64: ...sor Enable Intel SpeedStep Default setting The option is enabled C States Control Allows you to enable or disable the additional processor sleep states C states Default setting The option is enabled Intel TurboBoost Allows you to enable or disable the Intel TurboBoost mode of the processor Enable Intel TurboBoost Default setting The option is enabled HyperThread Control Allows you to enable or dis...

Page 65: ...figuration This option enables you to maximize the battery health By enabling this option your system uses the standard charging algorithm and other techniques during the non work hours to improve the battery health Enable Advanced Battery Charge ModeThis option is not selected by default Primary Battery Charge Configuration Allows you to select the charging mode for the battery The options are Ad...

Page 66: ...ou to enable or disable provisioning the Intel AMT from a USB storage device Enable USB Provision This option is not selected by default MEBx Hotkey Allows you to specify whether the MEBx Hotkey function should be enabled during the system boot Enable MEBx Hotkey This option is selected by default Virtualization Support options Option Description Virtualization Allows you to enable or disable the ...

Page 67: ...ces The process adheres to Serial ATA Security Erase and eMMC JEDEC Sanitize specifications The option are Wipe on Next Boot This option is disabled by default BIOS Recovery Allows you to recover from certain computed BIOS conditions from a recovery file on the user primary hard drive or an external USB key When Enabled is selected BIOS stores the recovery file on the user primary hard drive The o...

Page 68: ... password field and click OK 4 Press Esc and save the changes as prompted by the pop up message 5 Press Y to save the changes The computer restarts Deleting or changing an existing system setup password Prerequisites Ensure that the Password Status is Unlocked in the System Setup before attempting to delete or change the existing System and or Setup password You cannot delete or change an existing...

Page 69: ...le 8 Double click the BIOS update file icon and follow the on screen instructions For more information search in the Knowledge Base Resource at www dell com support Updating the BIOS in Linux and Ubuntu To update the system BIOS on a computer that is installed with Linux or Ubuntu see the knowledge base article 000131486 at www dell com support Updating the BIOS using the USB drive in Windows Abou...

Page 70: ...S update option NOTE Only computers with BIOS Flash Update option in the F12 One Time boot menu can use this function Updating from the One Time boot menu To update your BIOS from the F12 One Time boot menu you need the following USB drive formatted to the FAT32 file system key does not have to be bootable BIOS executable file that you downloaded from the Dell Support website and copied to the roo...

Page 71: ...attery cable to the system board 7 Replace the base cover Clearing BIOS System Setup and System passwords About this task To clear the system or BIOS passwords contact Dell technical support as described at www dell com contactdell NOTE For information on how to reset Windows or application passwords refer to the documentation accompanying Windows or your application System setup 71 ...

Page 72: ... your notebook 6 Scroll down the page and select the driver to install 7 Click Download File to download the driver for your notebook 8 After the download is complete navigate to the folder where you saved the driver file 9 Double click the driver file icon and follow the instructions on the screen Chipset driver The chipset driver helps the system identify the components and install necessary dri...

Page 73: ...the computer Human Interface Devices drivers Verify if the Human Interface Devices drivers are already installed in the computer Network drivers Install the WLAN and Bluetooth drivers from the Dell support site Verify if the Network drivers are already installed in the computer Software 73 ...

Page 74: ...nstalled in the computer Disk drives Verify if the Disk drives drivers are already installed in the computer Dynamic Platform and Thermal Framework Driver Verify if the Dynamic Platform and Thermal Framework Driver are already installed in the computer 74 Software ...

Page 75: ...rface Verify if the Intel Management Engine Interface drivers are already installed in the computer Serial IO driver Verify if the drivers for Touchpad and Portable Device are installed Figure 2 Serial IO driver Software 75 ...

Page 76: ...curity drivers This section lists the security devices in the Device Manager Security device drivers Verify if the security device drivers are installed in the computer Fingerprint sensor drivers Verify if the Fingerprint sensor drivers are installed in the computer 76 Software ...

Page 77: ...igh temperatures or disassemble battery packs and cells Do not apply pressure to the surface of the battery Do not bend the battery Do not use tools of any type to pry on or against the battery If a battery gets stuck in a device as a result of swelling do not try to free it as puncturing bending or crushing a battery can be dangerous Do not attempt to reassemble a damaged or swollen battery into ...

Page 78: ...e LCD BIST section for 30 seconds and then power off LCD Power rail test L BIST L BIST is an enhancement to the single LED error code diagnostics and is automatically initiated during POST L BIST will check the LCD power rail If there is no power being supplied to the LCD i e the L BIST circuit fails the battery status LED will flash either an error code 2 8 or an error code 2 7 NOTE If L BIST fai...

Page 79: ...errors are indicated via the bicolor Battery Charge LED A specific blink pattern is followed by flashing a pattern of flashes in amber followed by white The pattern then repeats NOTE The diagnostic pattern will consist of a two digit number being represented by a first group of LED blinks 1 through 9 in amber followed by a 1 5 second pause with the LED off and then a second group of LED blinks 1 t...

Page 80: ...nd is connected to power source Press and hold the power button for 25 seconds and then release the power button Go to how to reset real time clock NOTE If AC power is disconnected from the system during the process or the power button is held longer than 40 seconds the RTC reset process is aborted The RTC reset will reset the BIOS to Defaults un provision Intel vPro and reset the system date and ...

Page 81: ...g or replacing any components in your computer Draining residual flea power also known as a performing a hard reset is also a common troubleshooting step if your computer does not power on or boot into the operating system To drain residual flea power perform a hard reset Steps 1 Turn off your computer 2 Disconnect the power adapter from your computer 3 Remove the base cover 4 Remove the battery 5...

Page 82: ... 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 Go to Dell com support 2 Select your support category 3 Verify your country or region in the Choose a Country Region drop down list at the bottom of the page 4 Select the appropriate service or sup...

Search results

Summary of Contents for Latitude 7390

Reviews:

Related manuals for Latitude 7390

Brands by name

Popular brands

Dell Latitude 7390, Owner'S Manual

Search results

Summary of Contents for Latitude 7390

Reviews:

Related manuals for Latitude 7390

Brands by name

Popular brands