- #PROLIFIC USB TO SERIAL COMM PORT COM4 WARNING INSTALL#
- #PROLIFIC USB TO SERIAL COMM PORT COM4 WARNING ZIP FILE#
- #PROLIFIC USB TO SERIAL COMM PORT COM4 WARNING DRIVERS#
Driver can auto-download via Windows Update (Windows 7, 8, 8. Windows Vista, 7, 8, 8.1 Certified WHQL Driver ( Device Manager>Ports ( COM & LPT )> Prolific USB to Serial, Double Click and then.
#PROLIFIC USB TO SERIAL COMM PORT COM4 WARNING INSTALL#
Once the install has finished, check to see whether the yellow. Compatible with Windows 2000SP4 & Server2003 From the window, choose the latest Prolific USB-to-Serial Comm Port version and click Next.
In Ports (COM & LPT) the Prolific USB-to-Serial Comm Port (COMx) will. Installer version & Build date: 1.12.0 () In Other Devices the USB-Serial Controller is proceeded by a YELLOW warning. (For PL2303 HXA, XA, HXD, EA, RA, SA, TA, TB versions) This is the Prolific website read on the driver I installed:ĭownload File: PL2303_Prolific_DriverInstaller_v1.12.0.zip July for the ones from the download page) and so Windows prefers it over them. The problem is probably that the non-working driver is the newest (September 2021 vs. I had only one other entry, a "ser2pl.inf" version " 3.8.40.0".ĭisconnect the device, and "pnputil /delete-driver oemXY.inf" with the INF file you located in the previous step.Ĭonnect the device again, and it should work, at least, it does for me. Insight Product USB to Serial Adapter - Detachable 6 ft USB A-B Cable - Prolific PL-2303 - USB to RS232 Adapter Cable (ICUSB232D) - Serial.
#PROLIFIC USB TO SERIAL COMM PORT COM4 WARNING DRIVERS#
Then "pnputil /enum-drivers", and in the output look for Prolific drivers other than the ones from the previous step. It will add the two driver packages to the driver store and tell you what oemXY.inf files it has assigned to them.
USB-to-Serial Comm Port device and the COM port number assigned by Windows.
#PROLIFIC USB TO SERIAL COMM PORT COM4 WARNING ZIP FILE#
What I did is this:įirst install the downloaded driver by unpacking the zip file and "pnputil /add-driver *.inf /subdirs /install" (the /install is probably not necessary) from the extracted "Win11_DCHU" directory. Go to Device Manager and check for the Prolific. Getting it installed is a bit tricky, it seems. Quickly converts a USB port to a Serial/RS232/COM/DB9 port The customizable and compatible Prolific PL-2303RA chipset makes it the ideal solution for many OSs. If a yellow triangle warning icon shows with Prolific USB-to-Serial Comm Port (COM), it means the current driver is not compatible with the cable connected. There is a working driver at, a bit down the page listed as "DCHU (for PC Vendors)".
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