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Boot Sequence

Boot Sequence allows you to bypass the System Setup–defined boot device order and boot directly to a specific device (for
example: optical drive or hard drive). During the Power-on Self Test (POST), when the Dell logo appears, you can:

Access System Setup by pressing F2 key

Bring up the one-time boot menu by pressing F12 key

The one-time boot menu displays the devices that you can boot from including the diagnostic option. The boot menu options
are:

Removable Drive (if available)

STXXXX Drive (if available)

NOTE:

 XXX denotes the SATA drive number.

Optical Drive (if available)

SATA Hard Drive (if available)

Diagnostics

The boot sequence screen also displays the option to access the System Setup screen.

System setup options

NOTE:

 Depending on this computer and its installed devices, the items that are listed in this section may or may not be

displayed.

Table 4. System setup options—System information menu 

Overview

BIOS Version

Displays the BIOS version number.

Service Tag

Displays the Service Tag of the computer.

Asset Tag

Displays the Asset Tag of the computer.

Manufacture Date

Displays the manufacture date of the computer.

Ownership Date

Displays the ownership date of the computer.

Express Service Code

Displays the express service code of the computer.

Ownership Tag

Displays the ownership tag of the computer.

Signed Firmware Update

Displays whether the signed firmware update is enabled.

Default: Enabled

Battery

Displays the battery health information.

Primary

Displays the primary battery.

Battery Level

Displays the battery level.

Battery State

Displays the battery state.

Health

Displays the battery health.

AC Adapter

Displays whether an AC adapter is connected. If connected, the AC adapter
type.

PROCESSOR

Processor Type

Displays the processor type.

Maximum Clock Speed

Displays the maximum processor clock speed.

Minimum Clock Speed

Displays the minimum processor clock speed.

Current Clock Speed

Displays the current processor clock speed.

Core Count

Displays the number of cores on the processor.

58

System setup

Summary of Contents for P145G

Page 1: ...Vostro 13 5310 Service Manual Regulatory Model P145G Regulatory Type P145G001 July 2021 Rev A01 ...

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 2021 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: ...talling the M 2 2230 solid state drive 17 Removing the M 2 2280 solid state drive 18 Installing the M 2 2280 solid state drive 19 Wireless card 21 Removing the wireless card 21 Installing the wireless card 22 Battery 23 Lithium ion battery precautions 23 Removing the battery 23 Installing the battery 24 Coin cell battery 25 Removing the coin cell battery 25 Installing the coin cell battery 26 Spea...

Page 4: ...e palm rest and keyboard assembly 55 Chapter 3 Drivers and downloads 56 Chapter 4 System setup 57 Entering BIOS setup program 57 Navigation keys 57 Boot Sequence 58 System setup options 58 Updating the BIOS in Windows 62 Updating BIOS on systems with BitLocker enabled 63 Updating your system BIOS using a USB flash drive 63 Flashing the BIOS from the F12 One Time boot menu 64 System and setup passw...

Page 5: ...Backup media and recovery options 73 WiFi power cycle 73 Drain residual flea power perform hard reset 74 Chapter 6 Getting help and contacting Dell 75 Contents 5 ...

Page 6: ...from the system board To enter Service Mode 1 Shut down your computer and disconnect the AC adapter 2 Hold B key on the keyboard and press the power button for 3 seconds or until the Dell logo appears on the screen 3 Press any key to continue NOTE If the power adapter has not been disconnected a message prompting you to remove the AC adapter appears on the screen Remove the AC adapter and then pre...

Page 7: ...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 product life span As the industry pushes for lower power requirements and increased density ESD protection is an ...

Page 8: ... 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 is successful a red LED is lit and an alarm sounds if the test fails Insulator Elements It is critical to keep ESD sensitive devices such as plastic heat sink casings away from internal parts that are insulators and often highly charged Working Environm...

Page 9: ...nctioning mode After working inside your computer About this task CAUTION 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 that y...

Page 10: ...he correct number of screws and correct screw type is restored when the component is replaced NOTE Some computers have magnetic surfaces Ensure that the screws are not left attached to such surfaces when replacing a component NOTE Screw color may vary with the configuration ordered Table 1 Screw list Component Screw type Quantity Screw image Base cover M2x4 5 Battery M2x3 5 Solid state drive M2x3 ...

Page 11: ...type Quantity Screw image I O board M2x3 1 Touchpad M2x2 2 Touchpad bracket M2x2 4 Type C port bracket M2x4 2 Major components of Vostro 13 5310 The following image shows the major components of Vostro 13 5310 Removing and installing components 11 ...

Page 12: ...lay assembly 8 Coin cell battery 9 Power button with optional fingerprint reader 10 Left speaker 11 System board 12 Heat sink 13 Wireless card bracket 14 Wireless card 15 Left fan 16 M 2 2280 solid state drive if installed 17 M 2 2230 solid state drive if installed 12 Removing and installing components ...

Page 13: ... the customer Contact your Dell sales representative for purchase options Base cover Removing the base cover Prerequisites 1 Follow the procedure in Before working inside your computer 2 Enter Service Mode About this task The following image s indicate the location of the base cover and provides a visual representation of the removal procedure Removing and installing components 13 ...

Page 14: ...o work on the sides to open the base cover 4 Lift and slide the base cover off the palm rest assembly Installing the base cover Prerequisites If you are replacing a component remove the existing component before performing the installation process About this task The following image s indicate the location of the base cover and provides a visual representation of the installation procedure 14 Remo...

Page 15: ... that secure the base cover to the palm rest assembly Next steps 1 Exit Service Mode 2 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 Enter Service Mode 3 Remove the base cover Removing and installing components 15 ...

Page 16: ...e 2230 mounting bracket M 2 2280 solid state drive The following image s indicate the location of the M 2 2230 solid state drive and provides a visual representation of the removal procedure Steps 1 Peel the Mylar that covers the system board 2 Remove the screw M2x3 that secures the M 2 2230 bracket to the system board 3 Slide and lift the M 2 2230 bracket off the system board 4 Slide and lift the...

Page 17: ...guration ordered The supported card configurations on the M 2 card slot are M 2 2230 solid state drive 2230 mounting bracket M 2 2280 solid state drive The following image s indicate the location of the M 2 2230 solid state drive and provides a visual representation of the installation procedure Steps 1 Align the notch on the M 2 2230 solid state drive with the tab on the M 2 card slot on the syst...

Page 18: ...requisites 1 Follow the procedure in Before working inside your computer 2 Enter Service Mode 3 Remove the base cover About this task NOTE This procedure applies only to computers shipped with a M 2 2280 solid state drive installed NOTE The M 2 card installed on your computer will depend on the configuration ordered The supported card configurations on the M 2 card slota are M 2 2230 solid state d...

Page 19: ...tate drive Prerequisites If you are replacing a component remove the existing component before performing the installation process About this task NOTE This procedure applies if you are installing a M 2 2280 solid state drive NOTE The M 2 card installed on your computer will depend on the configuration ordered The supported card configurations on the M 2 card slot are M 2 2230 solid state drive 22...

Page 20: ...he M 2 card slot on the system board 2 Slide the M 2 2280 solid state drive into the M 2 card slot on the system board 3 Replace the screw M2x3 that secures the M 2 2280 solid state drive to the palm rest and keyboard assembly 4 Place the Mylar over the system board Next steps 1 Install the base cover 2 Exit Service Mode 3 Follow the procedure in After working inside your computer 20 Removing and ...

Page 21: ...on of the wireless card and provides a visual representation of the removal procedure Steps 1 Remove the screw M2x3 that secures the wireless card bracket to the palm rest and keyboard assembly 2 Lift the wireless card bracket off the wireless card 3 Disconnect the antenna cables from the wireless card 4 Slide and remove the wireless card off the M 2 card slot on the system board Removing and inst...

Page 22: ...mage s indicate the location of the wireless card and provides a visual representation of the installation procedure Steps 1 Connect the antenna cables to the wireless card Table 2 Antenna cable color scheme Connectors on the wireless card Antenna cable color Silkscreen marking Main White MAIN white triangle Auxiliary Black AUX black triangle 22 Removing and installing components ...

Page 23: ...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 computer as a result of swelling do not try to release it as puncturing ...

Page 24: ...e battery cable from the system board if applicable Installing the battery Prerequisites If you are replacing a component remove the existing component before performing the installation process About this task The following image s indicate the location of the battery and provides a visual representation of the installation procedure 24 Removing and installing components ...

Page 25: ...1 Install the base cover 2 Exit Service Mode 3 Follow the procedure in After working inside your computer Coin cell battery Removing the coin cell battery Prerequisites 1 Follow the procedure in Before working inside your computer 2 Enter Service Mode 3 Remove the base cover About this task The following image s indicate the location of the coin cell battery and provides a visual representation of...

Page 26: ...tery from the palm rest and keyboard assembly Installing the coin cell battery Prerequisites If you are replacing a component remove the existing component before performing the installation process About this task The following image s indicate the location of the coin cell battery and provides a visual representation of the installation procedure 26 Removing and installing components ...

Page 27: ...s 1 Install the base cover 2 Exit Service Mode 3 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 base cover 3 Remove the battery About this task The following image s indicate the location of the speakers and provides a visual representation of the removal procedure Re...

Page 28: ...st and keyboard assembly 6 Remove the speaker cable from the routing guides on the palm rest and keyboard assembly 7 Lift the speakers along with its cable off the palm rest and keyboard assembly Installing the speakers Prerequisites If you are replacing a component remove the existing component before performing the installation process About this task The following image s indicate the location ...

Page 29: ...ts place the right speaker on the palm rest and keyboard assembly NOTE Ensure that the alignment posts are threaded through the rubber grommets on the speaker 4 Connect the speaker cable to the connector on the system board 5 Adhere the tape that secures the speaker cable to the palm rest and keyboard assembly 6 Place the Mylar over the system board Next steps 1 Install the battery 2 Install the b...

Page 30: ...2 Remove the two screws M2x3 that secure the left fan to the palm rest and keyboard assembly 3 Disconnect the left fan cable from the system board 4 Lift the left fan off the palm rest and keyboard assembly Installing the left fan Prerequisites If you are replacing a component remove the existing component before performing the installation process About this task The following image s indicate th...

Page 31: ...e system board 5 Adhere the Mylar over the system board Next steps 1 Install the base cover 2 Exit Service Mode 3 Follow the procedure in After working inside your computer Removing the right fan Prerequisites 1 Follow the procedure in Before working inside your computer 2 Enter Service Mode 3 Remove the base cover About this task The following image s indicate the location of the right fan and pr...

Page 32: ...ard 4 Lift the right fan off the palm rest and keyboard assembly Installing the right fan Prerequisites If you are replacing a component remove the existing component before performing the installation process About this task The following image s indicate the location of the right fan and provides a visual representation of the installation procedure 32 Removing and installing components ...

Page 33: ... system board 5 Adhere the Mylar over the system board Next steps 1 Install the base cover 2 Exit Service Mode 3 Follow the procedure in After working inside your computer Touchpad Removing the touchpad Prerequisites 1 Follow the procedure in Before working inside your computer 2 Remove the base cover 3 Remove the battery About this task The following image s indicate the location of the touchpad ...

Page 34: ...M2x2 that secure the touchpad to the palm rest and keyboard assembly 5 Lift the touchpad along with its cable off the palm rest and keyboard assembly Installing the touchpad Prerequisites If you are replacing a component remove the existing component before performing the installation process About this task The following image s indicate the location of the touchpad and provides a visual represen...

Page 35: ...nd keyboard assembly 7 Replace the four screws M2x2 that secure the touchpad bracket to the palm rest and keyboard assembly 8 Connect the touchpad cable to the system board and close the latch Next steps 1 Install the battery 2 Install the base cover 3 Follow the procedure in After working inside your computer Display assembly Removing the display assembly Prerequisites 1 Follow the procedure in B...

Page 36: ...36 Removing and installing components ...

Page 37: ...d 3 Lift the display cable bracket off the system board 4 Peel the tape that secures the display cable connector latch to the system board 5 Lift the latch and disconnect the display cable from the connector on the system board 6 Remove the screw M2x3 that secures the left display hinge to the palm rest and keyboard assembly Removing and installing components 37 ...

Page 38: ...ly from the palm rest and keyboard assembly CAUTION To avoid damaging the display do not slide the palm rest and keyboard assembly over the display assembly 13 After performing the above steps you are left with the display assembly Installing the display assembly Prerequisites If you are replacing a component remove the existing component before performing the installation process About this task ...

Page 39: ...Removing and installing components 39 ...

Page 40: ... rest and keyboard assembly 6 Close the right display hinge and align the screw holes on the right display hinge with the screw holes on the system board 7 Place the Type C port bracket on the palm rest and keyboard assembly 8 Align the screw holes on the Type C port bracket to the screw holes on the right display hinge 9 Replace the two screws M2x4 that secure the Type C port bracket to the palm ...

Page 41: ...e the base cover About this task The following image s indicate the location of the I O board and provides a visual representation of the removal procedure Steps 1 Lift the I O board cable connector latch and disconnect the I O board cable from the I O board 2 Remove the screw M2x3 that secures the left display hinge to the palm rest and keyboard assembly 3 Remove the screw M2x4 that secures the l...

Page 42: ... on the I O board to the screw holes on the palm rest and keyboard assembly 4 Replace the screw M2x3 that secures the I O board to the palm rest and keyboard assembly 5 Close the left display hinge and align the screw holes on the left display hinge with the screw holes on the palm rest and keyboard assembly 6 Replace the screw M2x3 that secures the left display hinge to the palm rest and keyboard...

Page 43: ... it NOTE For maximum cooling of the processor do not touch the heat transfer areas on the heat sink The oils in your skin can reduce the heat transfer capability of the thermal grease The following image s indicate the location of the heat sink integrated graphics and provides a visual representation of the removal procedure Steps 1 In reverse sequential order 4 3 2 1 loosen the four captive screw...

Page 44: ...at thermal conductivity is achieved The following image s indicate the location of the heat sink integrated graphics and provides a visual representation of the installation procedure Steps 1 Place the heat sink on the system board 2 In sequential order 1 2 3 4 tighten the four captive screws M2x2 that secure the heat sink to the system board Next steps 1 Install the base cover 2 Exit Service Mode...

Page 45: ...ng normal operation Allow sufficient time for the heat sink to cool before you touch it NOTE For maximum cooling of the processor do not touch the heat transfer areas on the heat sink The oils in your skin can reduce the heat transfer capability of the thermal grease The following image s indicate the location of the heat sink discrete graphics and provides a visual representation of the removal p...

Page 46: ...move the existing component before performing the installation process About this task NOTE If either the system board or the heat sink is replaced use the thermal grease provided in the kit to ensure that thermal conductivity is achieved The following image s indicate the location of the heat sink discrete graphics and provides a visual representation of the installation procedure Steps 1 Place t...

Page 47: ...e base cover 4 Remove the left fan 5 Remove the I O board 6 Remove the heat sink integrated graphics or the heat sink discrete graphics whichever applicable About this task The following image s indicate the location of the power button and provides a visual representation of the removal procedure Steps Lift the power button with optional fingerprint reader off the palm rest and keyboard assembly ...

Page 48: ...ll the base cover 5 Exit Service Mode 6 Follow the procedure in After working inside your computer Power button with fingerprint reader Removing the power button with fingerprint reader Prerequisites 1 Follow the procedure in Before working inside your computer 2 Enter Service Mode 3 Remove the base cover 4 Remove the left fan 5 Remove the I O board 6 Remove the heat sink integrated graphics or th...

Page 49: ...eyboard assembly Installing the power button with fingerprint reader Prerequisites If you are replacing a component remove the existing component before performing the installation process About this task The following image s indicate the location of the power button with fingerprint reader and provides a visual representation of the installation procedure Removing and installing components 49 ...

Page 50: ... working inside your computer System board Removing the system board Prerequisites 1 Follow the procedure in Before working inside your computer 2 Remove the base cover 3 Remove the battery 4 Remove the M 2 2230 solid state drive or M 2 2280 solid state drive whichever applicable 5 Remove the wireless card 6 Remove the left fan 7 Remove the right fan 8 Remove the heat sink integrated graphics or t...

Page 51: ... and provides a visual representation of the removal procedure Steps 1 Remove the two screws M2x4 that secure the Type C port bracket to the palm rest and keyboard assembly 2 Lift the Type C port bracket off the palm rest and keyboard assembly Removing and installing components 51 ...

Page 52: ...Lift the I O board cable connector latch and disconnect the I O board cable from the system board 12 Disconnect the speaker cable from the system board 13 Lift the latch and disconnect the touchpad cable from the system board 14 Lift the latch and disconnect the keyboard cable from the system board 15 Lift the latch and disconnect the keyboard backlight cable from the system board 16 Lift the syst...

Page 53: ...he screw hole on the display cable bracket to the screw hole on the system board 11 Replace the screw M2x3 that secures the display cable bracket to the system board 12 Adhere the tape that secures the display cable bracket to the system board 13 Connect the power button with fingerprint reader cable to the connector on the system board and close the latch 14 Connect the coin cell battery cable to...

Page 54: ...he wireless card 5 Remove the left fan 6 Remove the right fan 7 Remove the touchpad 8 Remove the display assembly 9 Remove the I O board 10 Remove the power button or the power button with fingerprint reader whichever applicable 11 Remove the system board NOTE The system board can be removed with the heat sink and solid state drives attached About this task The following image s indicate the locat...

Page 55: ... and keyboard assembly on a flat and clean surface and perform the post requisites to install the palm rest and keyboard assembly Next steps 1 Install the system board 2 Install the power button or the power button with fingerprint reader whichever applicable 3 Install the IO board 4 Install the display assembly 5 Install the touchpad 6 Install the left fan 7 Install the right fan 8 Install the wi...

Page 56: ...rivers and downloads When troubleshooting downloading or installing drivers it is recommended that you read the Dell Knowledge Based article Drivers and Downloads FAQ 000123347 3 56 Drivers and downloads ...

Page 57: ...ling base devices Entering BIOS setup program Steps 1 Turn on your computer 2 Press F2 immediately to enter the BIOS setup program NOTE If you wait too long and the operating system logo appears continue to 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 unti...

Page 58: ... Overview BIOS Version Displays the BIOS version number Service Tag Displays the Service Tag of the computer Asset Tag Displays the Asset Tag of the computer Manufacture Date Displays the manufacture date of the computer Ownership Date Displays the ownership date of the computer Express Service Code Displays the express service code of the computer Ownership Tag Displays the ownership tag of the c...

Page 59: ...mory Displays the video memory information of the computer Wi Fi Device Displays the Wi Fi device installed in the computer Native Resolution Displays the native resolution of the computer Video BIOS Version Displays the video BIOS version of the computer Audio Controller Displays the audio controller information of the computer Bluetooth Device Displays whether a Bluetooth device is installed in ...

Page 60: ...puter date in MM DD YYYY format Changes to the date take effect immediately Time Sets the computer time in HH MM SS 24 hour format You can switch between 12 hour and 24 hour clock Changes to the time take effect immediately Camera Enable Camera Enables or disables the camera By default Enable Camera is selected Audio Enables or disables all integrated audio controller Default ON Enable Microphone ...

Page 61: ...ange or delete the system password Internal HDD 1 Password Enables the user to set change or delete the Internal HDD 1 password Table 10 System setup options Update Recovery menu Update Recovery SupportAssist OS Recovery Enables or disables the boot flow for SupportAssist OS Recovery tool in the event of certain system error Default ON BIOSConnect Enables or disables cloud Service OS recovery if t...

Page 62: ...vents Default Keep Power Event Log Clear POWER Event Log Select keep or clear Power events Default Keep 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 About this task NOTE If BitLocker is enabled it must be suspended before updating the system BIOS and then re enabled after the BIOS update...

Page 63: ...tall For more information on 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 computer cannot load into Windows but there is still a need to update the BIOS download the BIOS file using another computer and save it to a bootable USB flash drive NOTE You must use a bootable USB flash drive For mo...

Page 64: ...n 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 will need USB key 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 root of the USB key AC power adapter connected to the system Functional system ba...

Page 65: ...3 The flash BIOS menu will open and then click the Flash from file 4 Select external USB device System setup 65 ...

Page 66: ...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 66 System setup ...

Page 67: ...vide a basic level of security for the data on your computer CAUTION Anyone can access the data that is stored on your computer if it is not locked and left unattended 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 F12 ...

Page 68: ...mediately after a power on or reboot Steps 1 In the System BIOS or System Setup screen select System Security and press Enter The System Security screen is displayed 2 In the System Security screen verify that Password Status is Unlocked 3 Select System Password update or delete the existing system password and press Enter or Tab 4 Select Setup Password update or delete the existing setup password...

Page 69: ... 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 69 ...

Page 70: ...cks 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 a laptop Swollen batteries that are covere...

Page 71: ...following diagnostic light codes and recommended solutions are intended for Dell service technicians to troubleshoot problems You should only perform troubleshooting and repairs as authorized or directed by the Dell technical support team Damage due to servicing that is not authorized by Dell is not covered by your warranty Table 15 Diagnostic light codes Diagnostic light codes Amber white Problem...

Page 72: ...untered during the test NOTE Some tests for specific devices require user interaction Ensure that you are present at the computer terminal when the diagnostic tests are performed For more information see SupportAssist Pre Boot System Performance Check Recovering the operating system When your computer is unable to boot to the operating system even after repeated attempts it automatically starts De...

Page 73: ...le USB drive For more information see the knowledge base article 000145519 at www dell com support 3 Copy the BIOS setup program file to the bootable USB drive 4 Connect the bootable USB drive to the computer that needs the BIOS update 5 Restart the computer and press F12 6 Select the USB drive from the One Time Boot Menu 7 Type the BIOS setup program filename and press Enter The BIOS Update Utili...

Page 74: ... 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 Press and hold the power button for 20 seconds to drain the flea pow...

Page 75: ...ick Search to retrieve the related articles Learn and know the following information about your product Product specifications Operating system Setting up and using your product Data backup Troubleshooting and diagnostics Factory and system restore BIOS information See Me and My Dell at www dell com support manuals To locate the Me and My Dell relevant to your product identify your product through...

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