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Comparison Chart of Driver Versions of AR-321CM Chip and Operation System
2021-12-13
No. H01317003-EN

     Serial NO. : H01317003-EN

Manufacturing DateOperation SystemChip VersionDriver Version

After 2021/03 ~

Win-11
Win-10
Win-7

PL2303-GC

High Note: Please firstly uninstall old driver before installing new driver !!!
PL23XX_Prolific_DriverInstaller_V400

2013/01 ~ 2021/03PL2303-HXD

2008/03 ~ 2012/12

Win-7
Win-XP

PL2303-HX

PL23XX_Prolific_DriverInstaller_V260

 

 

Note 1: Step by step uninstall old driver
Go to Control Panel Device ManagerImportant: required to unplug all of AR-321CM devices from computer’s USB Port in the first hand

Select Ports (COM & LPT) à

select “USB-to-Serial Comm Port”, right click à

select “Uninstall device”

Tick the box of option “Delete the driver software for this device.

à select “Uninstall”

    

Reinstall new USB Driver for Win11USB Driver version: PL23XX_Prolific_DriverInstaller_V300.exe and after
  •  Tools for checking chip version:PL23XX_checkChipVersion_v1020.exe
  • When auto-simulated USB COM port number is more than 20, it must change number less than 20 ; Moreover, the computer must be restarted after changing the number.

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Troubleshooting

Q1. AR-321CM could not connect to any of SOYAL software?

Answer:

Problem:  USB Driver has been installed, AR-321-CM showed on Device Manager indicated the USB has been connected to the PC, but when wiring controller to the software it always show offline.
Solution:  Add USB HUB in between PC and AR-321-CM

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