PL2303 Windows User Manual v1.7
Contents
1. Prolific PL2303 Windows Driver User s Manual For Driver Installer v1 11 0 Release aaa al kd For Microsoft Windows Operating Systems PL2303 USB to Serial Bridge Chip Family Windows Driver Installer User Manual WHQL Driver Version Information v Driver Installer amp Build date 1 11 0 2015 6 17 GUID ECC3713C 08A4 40E3 95F 1 7D0704F 1CE5E v WHQL WDM Driver v2 1 51 238 10 22 2013 Windows 2000 XP Server 2003 32 amp 64 bit https sysdev microsoft com en US Hardware LogoVerificationReport aspx sid 1616428 v WHQL WDF Driver v3 6 78 350 06 05 2015 Windows 10 32 amp 64 bit Windows Vista 7 8 8 1 32 amp 64 bit Windows Server 2008 2008R2 Server 2012 Server 2012R2 64 bit https sysdev microsoft com en US Hardware LogoVerificationReport aspx sid 1 32552 Drivers can also automatically install via Windows Update need Internet connection System Requirements v PC with USB 1 1 2 0 3 0 Host Controller USB Port and Windows OS v USB Device with below PL 2303 chip versions and their supported OS Family Windows Windows Windows 2000 XP Vista 7 8 8 1 Windows 10 Server 2003 Server2008 R2 Server2012 R2 32 amp 64 bit 32 amp 64 bit 32 amp 64 bit 32 amp 64 bit PL 2303H p Not Supported Not Supported PL 2303HX Rev A or Not Supported Not Supported HXA PL 2303X or XA E E Not Supported Not eee PL 2303HX Rev D or HXD ee PL23032. Prolific USB to Serial Comm Port Prolific Technology Inc 10 of 17 June 17 2015 All information herein is subject to change without prior notice Prolific Technology Inc does not make any warranties regarding the accuracy and completeness of this document and shall in no event be liable for any loss of profit or any other commercial damage including but not limited to special incidental consequential or other damages No part of this document may be reproduced or transmitted in any form by any means without the express written permission of the manufacturer Prolific PL2303 Windows Driver User s Manual For Driver Installer v1 11 0 Release For Microsoft Windows Operating Systems TECHNOLOGY FOR TOMORROW Windows 8 8 1 10 Supported Chip Versions This section will guide you on what PL 2303 chip versions are supported by Prolific in Windows 8 Chip Version Chip Availability Windows 8 8 1 10 32 amp 64 bit PL 2303H No New Driver Support PL 2303HX Rev A or HXA No New Driver Support PL 2303X or XA No New Driver Support PL 2303HX Rev D or HXD Yes PL2303TA Yes PL2303TB Yes PL2303EA Yes PL2303RA Yes PL2303SA Yes New Driver does not support PL 2303H PL2303HX Rev A and PL2303X in Windows 8 8 1 10 It will show a yellow mark Error Code 10 in Device Manager similar to what counterfeit chips would show Check Chip Version Tool Prolific provides a tool program inside the driver package to check th
3. Prolific PL2303 Windows Driver User s Manual For Driver Installer v1 11 0 Release acai arial For Microsoft Windows Operating Systems ad The PL 2303 Driver Installer program will then start to install the drivers needed PL 2303 Installer Program Setup Status PL 2303 USB to Serial is configuring our new sottware installation InstallShield Cancel 4 Click the Finish button to close the InstallShield program If you have plugged the cable into the PC while running the setup installation please unplug and replug the cable for the system to detect the device PL 2303 Driver Installer Program InstallShield Wizard Complete The InstallShield Wizard has successfully installed PL 2303 USB to Senal Click Finish to exit the wizard Back Cancel Prolific Technology Inc 4of 17 June 17 2015 All information herein is subject to change without prior notice Prolific Technology Inc does not make any warranties regarding the accuracy and completeness of this document and shall in no event be liable for any loss of profit or any other commercial damage including but not limited to special incidental consequential or other damages No part of this document may be reproduced or transmitted in any form by any means without the express written permission of the manufacturer Prolific PL2303 Windows Driver User s Manual For Driver Installer v1 11 0 Release For Microsoft Windows Operating Systems T
4. Display adapters 43 DVD CD ROM drives 4g IDE ATA ATAPI controllers 5 Keyboards Mice and other pointing devices AS Monitors EP Network adapters p Other devices i ij USB Serial Controller D b A Processors b A Sound video and game controllers lil System devices b Sr Ne Se Y ee ae N b Universal Serial Bus controllers 2 Windows will automatically check Windows Update if driver is available and will download and install the driver instantly oh Installing device driver software US6 Serial Controller D Searching Windows Update Obtaining device driver software from Windows Update might take a while Skip obtaining driver software from Windows Update All information herein is subject to change without prior notice Prolific Technology Inc does not make any warranties regarding the accuracy and completeness of this document and shall in no event be liable for any loss of profit or any other commercial damage including but not limited to special incidental consequential or other damages No part of this document may be reproduced or transmitted in any form by any means without the express written permission of the manufacturer TECHNOLOGY FOR TOMORROW ad ready to use J orerar Prolific USB to Serial Comm Port COM6 installed Prolific USB to Serial Comm Port COMB wt Ready to use File Action View Help 2e mial om F es 4a SE Snook PC b JE Computer gt Disk dri
5. Date 6 5 2015 Driver Version 3 6 78 350 Digital Signer Microsoft Windows Hardware Compatibility Publisher To view details about the driver files To update the driver software for this device F the device fails after updating the driver roll back to the previously installed driver Disables the selected device To uninstall the driver Advanced 13 of 17 June 17 2015 All information herein is subject to change without prior notice Prolific Technology Inc does not make any warranties regarding the accuracy and completeness of this document and shall in no event be liable for any loss of profit or any other commercial damage including but not limited to special incidental consequential or other damages No part of this document may be reproduced or transmitted in any form by any means without the express written permission of the manufacturer Prolific PL2303 Windows Driver User s Manual For Driver Installer v1 11 0 Release For Microsoft Windows Operating Systems TECHNOLOGY FOR TOMORROW The COM Port number for the PL 2303 is assigned by the Windows Operating System If you encounter a device that shows a yellow mark Error Code 10 you need to check if that device is using an old version Prolific chip PL 2303HXA or PL 2303XA or a counterfeit chip As mentioned in the previous sections Prolific does not support old version chips in Windows 8 Device Manager Whee gs l File Action View
6. Help ANa E B Dell ICH D iy Audio inputs and outputs p JE Computer gt Disk drives b E Display adapters gt ig DVD CD ROM drives gt aL Human Interface Devices gt 2 Keyboards gt Mice and other pointing devices b Monitors p a Network adapters a7 Ports COM amp LPT ia Prolific USB to Serial Comm Port COM4 Prolific USB to Serial Comm Port COME E Print Queues b gt Processors gt Sound wideo and game controllers gt Storage controllers JE System devices s Universal Serial Bus controllers Prolific USB o Serial Comm Port COME Device type Ports COM amp LPT Manufacturer Prolific Location Port_ OO0 Hub _ 000E Device status This device cannot start Code 10 All information herein is subject to change without prior notice Prolific Technology Inc does not make any warranties regarding the accuracy and completeness of this document and shall in no event be liable for any loss of profit or any other commercial damage including but not limited to special incidental consequential or other damages No part of this document may be reproduced or transmitted in any form by any means without the express written permission of the manufacturer Prolific PL2303 Windows Driver User s Manual For Driver Installer v1 11 0 Release ail arial For Microsoft Windows Operating Systems Uninstalling
7. already plug the device during the driver installation you need to re plug the device for Windows to enumerate the device and load the drivers installed If your device is embedded to the system you might need to restart the system or click rescan hardware changes in Device Manager to reload and install the driver The following steps will show how to install the device under Windows 7 64 bit OS as this is the most inquired driver installation support received by Prolific The procedures are the same and straight forward for all other supported Windows operating system versions Prolific Technology Inc 2of 17 June 17 2015 All information herein is subject to change without prior notice Prolific Technology Inc does not make any warranties regarding the accuracy and completeness of this document and shall in no event be liable for any loss of profit or any other commercial damage including but not limited to special incidental consequential or other damages No part of this document may be reproduced or transmitted in any form by any means without the express written permission of the manufacturer Prolific PL2303 Windows Driver User s Manual For Driver Installer v1 11 0 Release a ee nee For Microsoft Windows Operating Systems N JE Control Panel System and Security System Search Control Panel D Control Panel Home a View basic information about your computer Device Manager Windows edition is Remote
8. settings Windows 7 Ultimate a System protection Copyright 2009 Microsoft Corporation All rights reserved ay Advanced system settings Service Pack 1 System See also Rating 23 Windows Experience Index Action Center Processor AMD Engineering Sample 2 40 GHz Windows Update Installed memory RAM 8 00 GB 3 00 GB usable Performance Information and System type 64 bit Operating System Tools Pen and Touch No Pen or Touch Input is available for this Display 1 Power on your computer and boot to Windows Run or double click the PL 2303 Windows Driver Installer program 2 The InstallShield Wizard will be displayed to inform you that the PL 2303 USB to Serial driver will be installed on your computer Click Next to continue PL 2303 Driver Installer Program Welcome to the InstallShield Wizard for PL 2303 US6 to Sernal The InstallShield Wizard will install PL 2303 USB6 to Senal on your computer To continue click Nest lt Back Nea All information herein is subject to change without prior notice Prolific Technology Inc does not make any warranties regarding the accuracy and completeness of this document and shall in no event be liable for any loss of profit or any other commercial damage including but not limited to special incidental consequential or other damages No part of this document may be reproduced or transmitted in any form by any means without the express written permission of the manufacturer
9. the PL 2303 Driver To uninstall the PL 2303 driver follow the below steps 1 Click Start Control Panel Programs Programs and Features Uninstall a Program Look for the PL 2303 USB to Serial program and click the Uninstall Remove button z T gt Control Panel gt Programs Programs and Features y Search Programs and Features Control Panel Home Uninstall or change a program View installed updates To uninstall a program select it from the list and then click Uninstall Change or Repair i Turn Windows features on or a Organize Uninstall Name j Publisher Installed On Size Version PL 2303 USB to Serial Prolific Technology INC 9 17 2014 1 10 0 F Prolific Technology INC Product version 1 10 0 2 InstallShield Wizard will then start the maintenance program and will prompt you to choose if you want to modify repair or remove the driver Click the Remove button and click Next to begin the driver uninstall Welcome Modify repair or remove the program Welcome to the PL 2303 USB to Senal Setup Maintenance program This program lets you modify the curent installation Click one of the options below Select new program features to add or select currently installed features to remove Reinstall all program features installed by the previous setup Remove all installed features InstallShield Prolific Technology Inc 15 of 17 June 17 2015 All information herein is sub
10. the previously installed driver Disable Disables the selected device To uninstall the driver Advanced OK All information herein is subject to change without prior notice Prolific Technology Inc does not make any warranties regarding the accuracy and completeness of this document and shall in no event be liable for any loss of profit or any other commercial damage including but not limited to special incidental consequential or other damages No part of this document may be reproduced or transmitted in any form by any means without the express written permission of the manufacturer Prolific PL2303 Windows Driver User s Manual For Driver Installer v1 11 0 Release ego ere eee eee For Microsoft Windows Operating Systems Warning If you are encountering yellow mark Error Code 10 for device in Device Manager under Windows XP Vista or Windows 7 you need to contact the cable vendor or manufacturer for possible counterfeit chip Prolific does not manufacture or sell any end user market products and will not provide or be responsible for direct support to end users pe Device Manager File Action View Help a fl Pee 4 2 Dell ICH8 gt ay Audio inputs and outputs gt J Computer gt q Disk drives W Display adapters gt i DVD CD ROM drives i a Human Interface Devices gt 2 Keyboards J Mice and other pointing devices gt JE Monitors a Network adapters a Y Ports COM amp L
11. to search for driver software Search automatically for updated driver software Windows will search your computer and the Internet for the latest driver software for your device unless you ve disabled this feature in your device installation SPECT L PEELE E EEE ee CE Tee ECE CLEC E EERE E eee eee EERE Le eee CECT eee L CLL eer Cee TEE tee Leer etree eee eee eee eCLe eee eee Eee eL Leet eee eee eet eee CeCe e eee Browse my computer for driver software Locate and install driver software manually Update Driver Software USB Serial Controller D a Searching online for software o Prolific Technology Inc 9 of 17 June 17 2015 All information herein is subject to change without prior notice Prolific Technology Inc does not make any warranties regarding the accuracy and completeness of this document and shall in no event be liable for any loss of profit or any other commercial damage including but not limited to special incidental consequential or other damages No part of this document may be reproduced or transmitted in any form by any means without the express written permission of the manufacturer Prolific PL2303 Windows Driver User s Manual For Driver Installer v1 11 0 Release ea ne are For Microsoft Windows Operating Systems AA Downloading driver software E E Windows has successfully updated your driver software Windows has finished installing the driver software for this device
12. ECHNOLOGY FOR TOMORROW on Plug in the USB to Serial adapter to the PC USB port Windows should detect the driver as Prolific USB to Serial Comm Port Go to Device Manager and check for the Prolific USB to Serial Comm Port device and the COM port number assigned by Windows File Action View Help e mE H m E Re a g J200 ICH10 p jE Computer b g Disk drives b MAY Display adapters b e DVD CD ROM drives b Cg IDE ATA ATAPI controllers gt 5 Keyboards b Mice and other pointing devices b E Monitors b EP Network adapters t E Portable Devices 1 Ports COM amp LPT Prolific USB to Serial Comm Port COM3 b gt Print queues gt oO Processors b al Sound video and game controllers gt Storage controllers p pl System devices gt Uniwersal Serial Bus controllers 6 You can also check the driver version by right clicking on the Prolific USB to Serial Comm Port device and select Properties and Driver tab Prolific USB to Serial Comm Port COMS Properties General Port Settings Driver Details Events Power Management Prolific USB o Seral Comm Port COM Driver Provider Prolific Driver Date 6 5 2015 Driver Version 3 6 78 350 Microsoft Windows Hardware Compatibility Publisher To view details about the driver files _ Update Driver To update the driver software for this device i Back Driv f the device fails after updating the driver roll sole Eee back to
13. H PL 2303HX Rev A and PL 2303X are EOL and discontinued chips and Prolific will not provide Windows 8 and above versions driver support New driver versions will show yellow mark Error Code 10 in Device Manager for these EOL chip versions under Windows 8 or above OS versions Chip Version All information herein is subject to change without prior notice Prolific Technology Inc does not make any warranties regarding the accuracy and completeness of this document and shall in no event be liable for any loss of profit or any other commercial damage including but not limited to special incidental consequential or other damages No part of this document may be reproduced or transmitted in any form by any means without the express written permission of the manufacturer Prolific PL2303 Windows Driver User s Manual For Driver Installer v1 11 0 Release For Microsoft Windows Operating Systems TECHNOLOGY FOR TOMORROW Counterfeit Warning Please be warned that counterfeit fake PL 2303HX Rev A or PL 2303HXA USB to Serial Controller ICs using Prolific s trademark logo brandname and drivers are being sold in the China market Counterfeit IC products show exactly the same outside chip markings but generally are of poor quality and causes Windows driver compatibility issues Yellow Mark Error Code 10 in Device Manager under WinXP Vista and 7 This warning is issued to all customers and consumers to avoid confusion and fals
14. PT LS Prolific USB to Serial Comm Port COMB b Print queues b A Processors Sound video and game controllers lt lt Storage controllers b lll System devices b Universal Serial Bus controllers Prolific USB o Seral Comm Port COMS Device type Ports COM amp LPT Manufacturer Prolific Location Fot _ 0002 Hub _ 000E Device status This device cannot start Code 10 All information herein is subject to change without prior notice Prolific Technology Inc does not make any warranties regarding the accuracy and completeness of this document and shall in no event be liable for any loss of profit or any other commercial damage including but not limited to special incidental consequential or other damages No part of this document may be reproduced or transmitted in any form by any means without the express written permission of the manufacturer Prolific PL2303 Windows Driver User s Manual For Driver Installer v1 11 0 Release For Microsoft Windows Operating Systems TECHNOLOGY FOR TOMORROW Windows Driver Installation via Windows Update This section guides you on how to install the PL 2303 Windows Driver via Windows Update You will need an Internet connection to automatically download and install the drivers via Windows Update 1 Check if your Internet connection is OK Plug in PL 2303 USB to Serial cable f Stax File Action View Help e m Bmx JE Computer eq Disk drives W
15. device from your system Prolific Technology Inc 17 of 17 June 17 2015 All information herein is subject to change without prior notice Prolific Technology Inc does not make any warranties regarding the accuracy and completeness of this document and shall in no event be liable for any loss of profit or any other commercial damage including but not limited to special incidental consequential or other damages No part of this document may be reproduced or transmitted in any form by any means without the express written permission of the manufacturer
16. e chip version of your device http www prolific com tw US ShowProduct aspx p id 225 amp pcid 41 NOTE This tool will not work in Windows 8 8 1 10 if the PL 2303 device shows a yellow mark in Device Manager You need to use Windows 7 or XP to run the tool program for discontinued chip versions Check PL 2303 chip version v1002 com3 a This is a PL 2303 HXD chip Clear All information herein is subject to change without prior notice Prolific Technology Inc does not make any warranties regarding the accuracy and completeness of this document and shall in no event be liable for any loss of profit or any other commercial damage including but not limited to special incidental consequential or other damages No part of this document may be reproduced or transmitted in any form by any means without the express written permission of the manufacturer Prolific PL2303 Windows Driver User s Manual For Driver Installer v1 11 0 Release eee ee ghee nena For Microsoft Windows Operating Systems Windows 8 8 1 10 Driver Installation This section shows how to install the PL 2303 device in Windows 8 or 8 1 or 10 Operating System You can download the latest Driver Installer program from Prolific Support website http www prolific com tw US ShowProduct aspx p id 225 amp pcid 41 x EN Windows Microsoft Windows Version 10 0 Build 10135 sla satires Ta Al rights reserved aia are cotaciadl by trademark a
17. e purchase Please purchase only from stores or vendors providing technical and RMA support Device Manager ua J O File Action View Help AE a Prolific USB to Serial Comm Port COM6 Properties a Dell icHe General b dy Audio inputs and outputs p gil Computer Prolific USB 0 Serial Comm Port COME b gt sq Disk drives p iy Display adapters Devicetype Ports COM amp LPT gt gf DVD CD ROM drives gt aie Human Interface Devices Manufacturer Prolific Location Port_ A000 Hub _ A006 gt lt 2 Keyboards p y Mice and other pointing devices Device status b li Monitors p EP Network adapters a Y Ports COM amp LPT Prolific USB to Serial Comm Port COMB This device cannot start Code 10 b Print queues gt Processors b l Sound video and game controllers D gt Storage controllers p Jil System devices b F Uniwersal Serial Bus controllers Windows 7 Driver Installation This section will guide you on how to install the PL 2303 Windows Driver You can download the latest Driver Installer program from Prolific Support website http www prolific com tw US ShowProduct aspx p_id 225 amp pcid 41 Note Please take notice of the installation order First run the Driver Installer Program before plugging in the USB to Serial adapter If you
18. ject to change without prior notice Prolific Technology Inc does not make any warranties regarding the accuracy and completeness of this document and shall in no event be liable for any loss of profit or any other commercial damage including but not limited to special incidental consequential or other damages No part of this document may be reproduced or transmitted in any form by any means without the express written permission of the manufacturer Prolific PL2303 Windows Driver User s Manual For Driver Installer v1 11 0 Release ee nee For Microsoft Windows Operating Systems ad The InstallShield Wizard will prompt you to confirm to uninstall Click Yes to continue Confirm Uninstall Do you want to completely remove the selected application and all of its features 4 Wait for the InstallShield Wizard to complete the uninstall process When complete click Finish to end the program Wait for some few seconds until the PL 2303 USB to Serial program is removed from the Control Panel Uninstall Add or Remove Programs program list Uninstall Complete InstallShield Wizard has finished uninstalling PL 2303 USB to S eral Cancel All information herein is subject to change without prior notice Prolific Technology Inc does not make any warranties regarding the accuracy and completeness of this document and shall in no event be liable for any loss of profit or any other commercial damage including b
19. nd other pending or existing ntelectual property rights in the United States and other countries regions la Evaluation copy Expires 10 1 2015 4 59 PM This product is icensed under the Microsoft Software License Terms to RW OK aS e ul el 1 Power on your computer and boot to Windows Run or double click the PL 2303 Windows Driver Installer program The InstallShield Wizard will be displayed to inform you that the PL 2303 USB to Serial driver will be installed on your computer Click Next to continue PL2303 USB to Serial Driver Installer Program Welcome to the InstallShield Wizard for PL 2303 US6 to Sernal The InstallShield Wizard will install PL 2303 USB to Senal on your computer To continue chick Hest Cancel All information herein is subject to change without prior notice Prolific Technology Inc does not make any warranties regarding the accuracy and completeness of this document and shall in no event be liable for any loss of profit or any other commercial damage including but not limited to special incidental consequential or other damages No part of this document may be reproduced or transmitted in any form by any means without the express written permission of the manufacturer Prolific TECHNOLOGY FOR TOMORROW PL2303 Windows Driver User s Manual For Driver Installer v1 11 0 Release For Microsoft Windows Operating Systems 2 The PL 2303 Driver Installer program will then start to install the d
20. rivers needed Click the Finish button to close the InstallShield program PL2503 US6 to Serial Driver Installer Program InstallShield Wizard Complete The InstallShield Wizard has successtully installed PL 2303 USB to Senal Click Finish to exit the wizard Cancel 3 Plug in the USB to Serial adapter to the PC USB port Windows should detect the driver as Prolific USB to Serial Comm Port Go to Device Manager and check for the device and the COM port number assigned by Windows You can also check the driver version by right clicking on the Prolific USB to Serial Comm Port device and select Properties and Driver tab ay Device Manager File Action View Help e9 mE Humer gE v gay WIN10 10135 gt Bluetooth gt jE Computer gt Disk drives gt E Display adapters gt 2 DVD CD ROM drives gt Qa Human Interface Devices gt Gg IDE ATA ATAPI controllers gt amp Keyboards gt A Mice and other pointing devices gt Monitors gt AY Network adapters gt Portable Devices v Y Ports COM amp LPT Prolific USB to Serial Comm Port COM3 gt Gab Print queues gt QO Processors gt Software devices gt Sound video and game controllers gt Storage controllers gt jM System devices gt Universal Serial Bus controllers Prolific Technology Inc Prolific USB o Serial Comm Port COM3 Driver Provider Prolific Driver
21. ut not limited to special incidental consequential or other damages No part of this document may be reproduced or transmitted in any form by any means without the express written permission of the manufacturer Prolific PL2303 Windows Driver User s Manual For Driver Installer v1 11 0 Release ee For Microsoft Windows Operating Systems 5 Ifyou are using Windows Server versions you may need to do this extra step if driver is not completely uninstalled Plug back the PL2303 device to the computer and go to Device Manager and right click Prolific USB to Serial Comm Port Click Uninstall and click enable the checkbox Delete the driver software for this device Click OK to completely uninstall the driver A File Action View Help 90 HISAR IFRS 4 oy Win81x86WHOL p pi Computer gt gq Disk drives b My Display adapters b 83 DVD CD ROM drives gt Og IDE ATA ATAPI controllers gt 2 Keyboards Mice and other pointing devices i LX Monitors gt EF Network adapters t E Portable Devices lific USB to Seral Comm Port COMMS gt Print queues Update Driver Software gt Ci Processors Disable ernst gt amp Sound video and game controllers ry lt gt Storage controllers Scan for hardware changes p lll System devices a P gt F Universal Serial Bus controllers Uninstalls the driver for the selected device Prolific USB o Serial Comm Port COM3 r Teigi Waming You are about to uninstall this
22. ves T Display adapters gt 28 DVD CD ROM drives gt Ca IDE ATA ATAPI controllers gt ED Keyboards pe a Mice and other pointing devices AS Monitors EP Network adapters a J Ports COM amp LPT IF Prolific USB to Serial Comm Port COMB T Processors Sound video and game controllers gt gill System devices F Universal Serial Bus controllers Prolific Technology Inc 8 of 17 Prolific PL2303 Windows Driver User s Manual For Driver Installer v1 11 0 Release For Microsoft Windows Operating Systems Windows will then prompt you that Prolific USB to Serial Comm Port COMx is installed and June 17 2015 All information herein is subject to change without prior notice Prolific Technology Inc does not make any warranties regarding the accuracy and completeness of this document and shall in no event be liable for any loss of profit or any other commercial damage including but not limited to special incidental consequential or other damages No part of this document may be reproduced or transmitted in any form by any means without the express written permission of the manufacturer Prolific PL2303 Windows Driver User s Manual For Driver Installer v1 11 0 Release For Microsoft Windows Operating Systems TECHNOLOGY FOR TOMORROW You can also right click on the USB Serial Controller device and click Update Driver ii Jpdate Driver Software USB Serial Controller D How do you want
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