Dell Vostro 3401 Service Manual Download Page 55

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3. Re-route the display cable and WLAN antenna cables through the routing channels on the palmrest.
4. Reconnect the display cable to the connector on the system board.

Next steps

1. Install the

WLAN

2. Install the

base cover

3. Install the

SD card

4. Follow the procedure in

after working inside your computer

Display bezel

Removing the display bezel

Prerequisites

1. Follow the procedure in

before working inside your computer

2. Remove the

3. Remove the

4. Remove the

5. Remove the

About this task

Steps

1. Pry open the display bezel from the inner edge at the left and right sides of the display assembly.

Disassembly and reassembly

Summary of Contents for Vostro 3401

Page 1: ...Vostro 3401 Service Manual Regulatory Model P132G Regulatory Type P132G001 September 2020 Rev A00 ...

Page 2: ...ential 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 2020 Dell Inc or its subsidiaries All rights reserved Dell EMC and other trademarks are trademarks of Dell Inc or its subsidiaries Other trademarks may be trademarks of their respective owners ...

Page 3: ...ng the base cover 20 Installing the base cover 22 Battery 24 Lithium ion battery precautions 24 Disconnecting the battery 24 Reconnecting the battery 25 Removing the battery 26 Installing the battery 27 Memory modules 29 Removing the memory module 29 Installing the memory module 29 WLAN card 30 Removing the WLAN card 30 Installing the WLAN card 31 Solid state drive 32 Removing the M 2 2230 Solid s...

Page 4: ...isplay back cover and antenna assembly 65 Camera 66 Removing the camera 66 Installing the camera 67 Display panel 68 Removing the display panel 68 Installation display panel 70 Display back cover and antenna assembly 72 Removing the display back cover 72 Installing the display back cover 73 Power button 73 Removing the power button 73 Installing the power button 74 System board 75 Removing the sys...

Page 5: ...WiFi power cycle 86 Chapter 6 Getting help 87 Contacting Dell 87 Contents 5 ...

Page 6: ...by Dell is not covered by your warranty Read and follow the safety instructions that came with the product CAUTION To avoid electrostatic discharge ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal surface at the same time as touching a connector on the back of the computer CAUTION Handle components and cards with care Do not touch the components or co...

Page 7: ... the use of a field service electrostatic discharge ESD kit When connecting a bonding wire ensure that it is connected to bare metal and never to a painted or non metal surface The wrist strap should be secure and in full contact with your skin and ensure that you remove all jewelry such as watches bracelets or rings prior to bonding yourself and the equipment Electrostatic discharge ESD protectio...

Page 8: ... recommended to test the wrist strap and bonding wire at least once per week ESD Wrist Strap Tester The wires inside of an ESD strap are prone to damage over time When using an unmonitored kit it is a best practice to regularly test the strap 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 ...

Page 9: ...ng sensitive components After working inside your computer About this task NOTE Leaving stray or loose screws inside your computer may severely damage your computer Steps 1 Replace all screws and ensure that no stray screws remain inside your computer 2 Connect any external devices peripherals or cables you removed before working on your computer 3 Replace any media cards discs or any other parts ...

Page 10: ...imes faster than its predecessor In a nutshell USB 3 2 Gen 1 features are as follows Higher transfer rates up to 5 Gbps Increased maximum bus power and increased device current draw to better accommodate power hungry devices New power 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...

Page 11: ...and video compression perspective it s easy to imagine that with 5 10 times the bandwidth available USB video solutions should work that much better Single link DVI requires almost 2Gbps throughput Where 480Mbps was limiting 5Gbps is more than promising With its promised 4 8Gbps speed the standard will find its way into some products that previously weren t USB territory like external RAID storage...

Page 12: ...ones and other portable devices supporting video resolutions up to 1080p Automotive Connection System New cables and connectors for automotive video systems designed to meet the unique demands of the motoring environment while delivering true HD quality Advantages of HDMI Quality HDMI transfers uncompressed digital audio and video for the highest crispest image quality Low cost HDMI provides the q...

Page 13: ...vide indication of the system status Power Adapter LED The LED on Power adapter connector illuminates white when power is supplied from electrical outlet Battery Indicator LED If the computer is connected to an electrical outlet the battery light operates as follows 1 Solid white the battery is charging When the charge is complete the LED turns off If the computer is running on a battery the batte...

Page 14: ... RJ45 LEDs Table 2 LED on either side of RJ45 port Link speed indicator LHS Activity indicator RHS Green Amber 14 Technology and components ...

Page 15: ...3 Exploded View 15 ...

Page 16: ...Exploded View 16 Exploded View ...

Page 17: ... Assembly 13 IO Board 14 Coin Cell Battery 15 Power Button Module 16 WLAN Card 17 Fan Assembly 18 Heatsink assembly NOTE Dell provides a list of components and their part numbers for the original system configuration purchased These parts are available according to warranty coverages purchased by the customer Contact your Dell sales representative for purchase options Exploded View 17 ...

Page 18: ... sink Speakers IO board Touchpad Display assembly Display bezel Camera Display panel Display back cover and antenna assembly Power button System board Power adapter port Palm rest and keyboard assembly Secure Digital Card Removing the Secure Digital card Prerequisites 1 Follow the procedure in Before working inside your computer 4 18 Disassembly and reassembly ...

Page 19: ...se it from the computer 2 Slide the secure digital card out of the computer Installing the Secure Digital card Prerequisites If you are replacing a component remove the existing component before performing the installation procedure Disassembly and reassembly 19 ...

Page 20: ... until it clicks into place Next steps 1 Follow the procedure in after working inside your computer Base cover Removing the base cover Prerequisites 1 Follow the procedure in before working inside your computer 2 Remove the SD card 20 Disassembly and reassembly ...

Page 21: ...About this task Disassembly and reassembly 21 ...

Page 22: ...e base cover near the hinges NOTE CAUTION DO NOT pry up from the edge near the vents at the top side of the base cover as this may damage the base cover 3 Lift up the top side of the base cover and remove it from the system Installing the base cover Prerequisites If you are replacing a component remove the existing component before performing the installation procedure 22 Disassembly and reassembl...

Page 23: ...About this task Disassembly and reassembly 23 ...

Page 24: ...o high 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 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 ...

Page 25: ...tery connector 2 Disconnect the battery cable from the connector on the system board Reconnecting the battery Prerequisites If you are replacing a component remove the existing component before performing the installation procedure Disassembly and reassembly 25 ...

Page 26: ...ttery connector Next steps 1 Install the base cover 2 Install the SD card 3 Follow the procedure in after working inside your computer Removing the battery Prerequisites 1 Follow the procedure in before working inside your computer 2 Remove the SD card 3 Remove the base cover About this task 26 Disassembly and reassembly ...

Page 27: ...he battery to the palmrest 2 Lift and move the battery away from the computer Installing the battery Prerequisites If you are replacing a component remove the existing component before performing the installation procedure Disassembly and reassembly 27 ...

Page 28: ...rest 2 Replace the three M2x3 screws that secure the battery to the palmrest 3 Reconnect the battery cable to the connector on the system board NOTE When installing the battery into the system insert the tab at the bottom left corner of the battery into the hook on the bottom side of the palm rest Next steps 1 Install the base cover 2 Install the SD card 3 Follow the procedure in after working ins...

Page 29: ... 4 Disconnect the battery cable About this task Steps 1 Pry the clips securing the memory module until the memory module pops up 2 Remove the memory module from the memory module slot Installing the memory module Prerequisites If you are replacing a component remove the existing component before performing the installation procedure Disassembly and reassembly 29 ...

Page 30: ...ou do not hear the click remove the memory module and reinstall it Next steps 1 Connect the battery cable 2 Install the base cover 3 Install the SD card 4 Follow the procedure in after working inside your computer WLAN card Removing the WLAN card Prerequisites 1 Follow the procedure in before working inside your computer 2 Remove the SD card 3 Remove the base cover 4 Disconnect the battery cable 3...

Page 31: ...that secures the WLAN antenna cables 3 Disconnect the WLAN antenna cables from the connectors on the WLAN card 4 Pull out the WLAN card from the M 2 port on the system board Installing the WLAN card Prerequisites If you are replacing a component remove the existing component before performing the installation procedure Disassembly and reassembly 31 ...

Page 32: ... card 4 Replace the single M2x3 screw to secure the WLAN bracket and the WLAN card to the palmrest Next steps 1 Connect the battery cable 2 Install the base cover 3 Install the SD card 4 Follow the procedure in after working inside your computer Solid state drive Removing the M 2 2230 Solid state drive Prerequisites 1 Follow the procedure in before working inside your computer 2 Remove the SD card...

Page 33: ...mrest to lift it out of the system 2 Turn the thermal plate over and remove the single M2x2 screw securing the M 2 2230 SSD to the thermal plate 3 Lift the solid state drive off the thermal plate Installing the M 2 2230 Solid state drive Prerequisites If you are replacing a component remove the existing component before performing the installation procedure Disassembly and reassembly 33 ...

Page 34: ... the single captive screw to secures the thermal plate to the palmrest Next steps 1 Connect the battery cable 2 Install the base cover 3 Install the SD card 4 Follow the procedure in after working inside your computer Removing the M 2 2280 Solid state drive Prerequisites 1 Follow the procedure in before working inside your computer 2 Remove the SD card 3 Remove the base cover 4 Disconnect the batt...

Page 35: ...of the system 2 Lift the solid state drive from the M 2 slot on the system board and remove it from the system Installing the M 2 2280 Solid state drive Prerequisites If you are replacing a component remove the existing component before performing the installation procedure Disassembly and reassembly 35 ...

Page 36: ...the thermal plate to the palmrest Next steps 1 Connect the battery cable 2 Install the base cover 3 Install the SD card 4 Follow the procedure in after working inside your computer Hard drive Removing the hard drive assembly Prerequisites 1 Follow the procedure in before working inside your computer 2 Remove the SD card 3 Remove the base cover 4 Remove the battery 36 Disassembly and reassembly ...

Page 37: ...d lift the hard drive assembly along with its cable from the system 3 Disconnect the interposer from the hard drive 4 Remove the four M3x3 screws from the hard drive bracket to free the hard drive Installing the hard drive assembly Prerequisites If you are replacing a component remove the existing component before performing the installation procedure Disassembly and reassembly 37 ...

Page 38: ... drive assembly on the palmrest then replace the four M2x3 screws to secure the hard drive assembly to the palmrest 4 Connect the hard drive cable to the system board and close the latch to secure the cable Next steps 1 Install the battery 2 Install the base cover 3 Install the SD card 4 Follow the procedure in after working inside your computer 38 Disassembly and reassembly ...

Page 39: ...computer 2 Remove the SD card 3 Remove the base cover 4 Disconnect the battery cable 5 Remove the IO board About this task Steps 1 Use a plastic scribe to pry up the coin cell battery from the slot on the IO daughter board 2 Remove the coin cell battery from the IO daughter board Disassembly and reassembly 39 ...

Page 40: ...into place Next steps 1 Install the IO board 2 Connect the battery cable 3 Install the base cover 4 Install the SD card 5 Follow the procedure in after working inside your computer System fan Removing the system fan Prerequisites 1 Follow the procedure in before working inside your computer 2 Remove the SD card 3 Remove the base cover 4 Disconnect the battery cable 40 Disassembly and reassembly ...

Page 41: ...d the cable from the routing points on the fan assembly 2 Remove the two screws M2 5x5 that secures the fan to the palmrest Installing the system fan Prerequisites If you are replacing a component remove the existing component before performing the installation procedure Disassembly and reassembly 41 ...

Page 42: ...he fan cable to the connector on the system board Next steps 1 Reconnect the battery cable 2 Replace the base cover 3 Replace the SD card 4 Follow the procedure in after working inside your computer Heat sink Removing the heatsink Prerequisites 1 Follow the procedure in before working inside your computer 2 Remove the SD card 3 Remove the base cover 4 Disconnect the battery cable 42 Disassembly an...

Page 43: ...at secure the heatsink to the system board 2 Lift the heatsink off the system board Installing the heatsink Prerequisites If you are replacing a component remove the existing component before performing the installation procedure Disassembly and reassembly 43 ...

Page 44: ...sink to the system board Next steps 1 Reconnect the battery cable 2 Install the base cover 3 Install the SD card 4 Follow the procedure in after working inside your computer Speakers Removing the speakers Prerequisites 1 Follow the procedure in before working inside your computer 2 Remove the SD card 3 Remove the base cover 4 Disconnect the battery cable 5 Remove the SSD 44 Disassembly and reassem...

Page 45: ...the speakers along with the cable off the system Installing the speakers Prerequisites If you are replacing a component remove the existing component before performing the installation procedure About this task NOTE If the rubber grommets are pushed out when removing the speakers push them back in before replacing the speakers Disassembly and reassembly 45 ...

Page 46: ...connector on the system board Next steps 1 Install the SSD 2 Reconnect the battery cable 3 Install the base cover 4 Install the SD card 5 Follow the procedure in after working inside your computer IO board Removing the IO board Prerequisites 1 Follow the procedure in before working inside your computer 2 Remove the SD card 3 Remove the base cover 4 Disconnect the battery cable 46 Disassembly and r...

Page 47: ...and display cable from the system board 3 Peel back the power button FFC and IO daughter board FFC from the palm rest 4 Remove the four M2x4 screws that secure the IO board to the palmrest and remove the IO board from the system 5 Disconnect and remove the power button FFC and IO daughter board FFC from the IO daughter board Installing the IO board Prerequisites If you are replacing a component re...

Page 48: ...ter board FFC and display cable to the connectors on the system board 5 For models shipped with a fingerprint reader Reconnect the fingerprint reader to IO daughter FFC and IO daughter board to system board FFC from the IO daughter board Next steps 1 Connect the battery cable 2 Install the base cover 3 Install the SD card 4 Follow the procedure in after working inside your computer Touchpad Removi...

Page 49: ... Remove the touchpad bracket from the system 5 Remove the two M2x2 screws securing the touchpad module in place 6 Remove the touchpad module with touchpad FFC from the system 7 Disconnect the touchpad FFC from the touchpad module Installing the touch pad assembly About this task NOTE Ensure that the touch pad is aligned with the guides available on the palm rest and keyboard assembly and the gap o...

Page 50: ...stall the two M2x2 screws to secure the touchpad module to the palmrest 4 Install the touchpad bracket on the touchpad and secure it using the three M2x2 screws 5 Peel back the conductive tape over the touchpad module 6 Reconnect the touchpad FFC to the system board Next steps 1 Install the battery 2 Install the base cover 3 Install the SD card 4 Follow the procedure in after working inside your c...

Page 51: ...display assembly Prerequisites 1 Follow the procedure in before working inside your computer 2 Remove the SD card 3 Remove the base cover 4 Disconnect the battery cable 5 Remove the WLAN About this task Disassembly and reassembly 51 ...

Page 52: ...Steps 1 Disconnect the display cable from the connector on the system board 52 Disassembly and reassembly ...

Page 53: ... edge 4 Remove the four M2 5x5 screws securing the display assembly in place 5 Remove the display assembly from the system Installing the display assembly Prerequisites If you are replacing a component remove the existing component before performing the installation procedure About this task NOTE Ensure that the hinges are opened to the maximum before replacing the display assembly on the palmrest...

Page 54: ...Steps 1 Align and place the system under the hinges on the display assembly 2 Install the four M2 5x5 screws securing the display assembly in place 54 Disassembly and reassembly ...

Page 55: ... card 4 Follow the procedure in after working inside your computer Display bezel Removing the display bezel Prerequisites 1 Follow the procedure in before working inside your computer 2 Remove the SD card 3 Remove the base cover 4 Remove the battery cable 5 Remove the display assembly About this task Steps 1 Pry open the display bezel from the inner edge at the left and right sides of the display ...

Page 56: ...2 Pry open the display bezel from the inner edge at the top side of the display assembly 3 Pry open the hinge caps at the bottom side of the display assembly 56 Disassembly and reassembly ...

Page 57: ...t and remove the display bezel from the display assembly NOTE CAUTION DO NOT use a scribe or any other objects to pry up the display bezel in the manners shown in the images below as the pressure applied on the display panel by the scribe will damage the display panel Disassembly and reassembly 57 ...

Page 58: ...Installing the display bezel Prerequisites If you are replacing a component remove the existing component before performing the installation procedure 58 Disassembly and reassembly ...

Page 59: ...3 Install the base cover 4 Install the SD card 5 Follow the procedure in after working inside your computer Camera Removing the camera Prerequisites 1 Follow the procedure in before working inside your computer 2 Remove the SD card 3 Remove the base cover 4 Disconnect the battery cable 5 Remove the WLAN 6 Remove the display assembly 7 Remove the display bezel 8 Remove the display panel Disassembly...

Page 60: ...ule 2 Using a plastic scribe gently pry the camera off the display back cover and antenna assembly Installing the camera Prerequisites If you are replacing a component remove the existing component before performing the installation procedure 60 Disassembly and reassembly ...

Page 61: ...lay assembly 4 Install the WLAN 5 Connect the battery cable 6 Install the base cover 7 Install the SD card 8 Follow the procedure in after working inside your computer Display panel Removing the display panel Prerequisites 1 Follow the procedure in before working inside your computer 2 Remove the SD card 3 Remove the base cover 4 Remove the battery 5 Remove the WLAN 6 Remove the display assembly 7...

Page 62: ...About this task 62 Disassembly and reassembly ...

Page 63: ... Ensure the panel has a clean and smooth surface to rest on to prevent damage 3 Disconnect the display cable from the display panel assembly and lift the display panel away from the system NOTE Do not remove the metal brackets from the panel Installation display panel Prerequisites If you are replacing a component remove the existing component before performing the installation procedure Disassemb...

Page 64: ...About this task 64 Disassembly and reassembly ...

Page 65: ... Install the display bezel 3 Install the display assembly 4 Install the WLAN 5 Install the battery 6 Install the base cover 7 Install the SD card 8 Follow the procedure in after working inside your computer Display back cover and antenna assembly Removing the display back cover Prerequisites 1 Follow the procedure in before working inside your computer 2 Remove the SD card 3 Remove the base cover ...

Page 66: ...the battery cable 6 Install the base cover 7 Install the SD card 8 Follow the procedure in after working inside your computer Camera Removing the camera Prerequisites 1 Follow the procedure in before working inside your computer 2 Remove the SD card 3 Remove the base cover 4 Disconnect the battery cable 5 Remove the WLAN 6 Remove the display assembly 7 Remove the display bezel 8 Remove the display...

Page 67: ...ule 2 Using a plastic scribe gently pry the camera off the display back cover and antenna assembly Installing the camera Prerequisites If you are replacing a component remove the existing component before performing the installation procedure Disassembly and reassembly 67 ...

Page 68: ...lay assembly 4 Install the WLAN 5 Connect the battery cable 6 Install the base cover 7 Install the SD card 8 Follow the procedure in after working inside your computer Display panel Removing the display panel Prerequisites 1 Follow the procedure in before working inside your computer 2 Remove the SD card 3 Remove the base cover 4 Remove the battery 5 Remove the WLAN 6 Remove the display assembly 7...

Page 69: ...About this task Disassembly and reassembly 69 ...

Page 70: ... Ensure the panel has a clean and smooth surface to rest on to prevent damage 3 Disconnect the display cable from the display panel assembly and lift the display panel away from the system NOTE Do not remove the metal brackets from the panel Installation display panel Prerequisites If you are replacing a component remove the existing component before performing the installation procedure 70 Disass...

Page 71: ...About this task Disassembly and reassembly 71 ...

Page 72: ... Install the display bezel 3 Install the display assembly 4 Install the WLAN 5 Install the battery 6 Install the base cover 7 Install the SD card 8 Follow the procedure in after working inside your computer Display back cover and antenna assembly Removing the display back cover Prerequisites 1 Follow the procedure in before working inside your computer 2 Remove the SD card 3 Remove the base cover ...

Page 73: ...mbly 4 Install the WLAN 5 Connect the battery cable 6 Install the base cover 7 Install the SD card 8 Follow the procedure in after working inside your computer Power button Removing the power button Prerequisites 1 Follow the procedure in before working inside your computer 2 Remove the SD card 3 Remove the base cover 4 Disconnect the battery cable 5 Remove the IO board Disassembly and reassembly ...

Page 74: ...n to the palmrest 2 Disconnect the power button cable and remove the power button from the system Installing the power button Prerequisites If you are replacing a component remove the existing component before performing the installation procedure 74 Disassembly and reassembly ...

Page 75: ... board 2 Connect the battery cable 3 Install the base cover 4 Install the SD card 5 Follow the procedure in after working inside your computer System board Removing the system board Prerequisites 1 Follow the procedure in before working inside your computer 2 Remove the SD card 3 Remove the base cover 4 Remove the battery 5 Remove the WLAN 6 Remove the SSD 7 Remove the memory 8 Remove the system f...

Page 76: ...NOTE The system board can be removed along with the heat sink 10 Remove the display assembly 76 Disassembly and reassembly ...

Page 77: ...About this task Disassembly and reassembly 77 ...

Page 78: ... Touchpad FFC f Hard drive FFC g IO board FFC h fingerprint reader FFC i power button FFC from the system board 3 Remove the single M2x4 screw that secures the system board to the palmrest 4 Carefully lift the system board away from the chassis Installing the system board Prerequisites If you are replacing a component remove the existing component before performing the installation procedure 78 Di...

Page 79: ...About this task Disassembly and reassembly 79 ...

Page 80: ... steps 1 Install the display assembly 2 Install the heatsink 3 Install the system fan 4 Install the memory 5 Install the SSD 6 Install the WLAN 7 Install the battery 8 Install the base cover 9 Install the SD card 10 Follow the procedure in after working inside your computer Power adapter port Removing the power adapter port Prerequisites 1 Follow the procedure in before working inside your compute...

Page 81: ...t module from the system board 2 Remove the power adapter port module from the system Installing the power adapter port Prerequisites If you are replacing a component remove the existing component before performing the installation procedure Disassembly and reassembly 81 ...

Page 82: ...ry cable 7 Install the base cover 8 Install the SD card 9 Follow the procedure in after working inside your computer Palm rest and keyboard assembly Removing the palmrest and keyboard assembly Prerequisites 1 Follow the procedure in before working inside your computer 2 Remove the SD card 3 Remove the base cover 4 Remove the battery 5 Remove the WLAN 6 Remove the memory 7 Remove the display assemb...

Page 83: ...tached After performing the preceding steps you are left with the palmrest and keyboard assembly Next steps 1 Install the system board 2 Install the power adapter port 3 Install the touchpad 4 Install the IO board 5 Install the heatsink 6 Install the system fan 7 Install the coin cell battery 8 Install the speakers 9 Install the hard drive assembly 10 Install the SSD 11 Install the display assembl...

Page 84: ...roblems encountered during testing NOTE The SupportAssist window displays listing all devices detected in the computer The diagnostics starts running the tests on all the detected devices Running SupportAssist diagnostics Steps 1 Turn on your computer 2 As the computer boots press the F12 key as the Dell logo appears 3 On the boot menu screen select the Diagnostics option 4 Click the arrow at the ...

Page 85: ...ription Recommended solutions 1 1 TPM detection failure Replace the system board 1 2 Unrecoverable SPI Flash failure Replace the system board 1 3 Short in hinge cable tripped OCP1 Check if the display cable EDP is seated properly or pinched at the hinges If problem persists replace either display cable EDP or display assembly LCD 1 4 Short in hinge cable tripped OCP2 Check if the display cable EDP...

Page 86: ...h incomplete Flash corruption detected by SBIOS If problem persists replace the system board 3 7 Management Engine ME error Timeout waiting on ME to reply to HECI message If problem persists replace the system board Camera status light Indicates whether the camera is in use Solid white Camera is in use Off Camera is not in use Caps Lock status light Indicates whether Caps Lock is enabled or disabl...

Page 87: ... 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 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 approp...

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