{"id":6496,"date":"2022-06-13T18:17:39","date_gmt":"2022-06-13T12:47:39","guid":{"rendered":"https:\/\/www.systweak.com\/blogs\/?p=6496"},"modified":"2026-02-04T13:32:15","modified_gmt":"2026-02-04T08:02:15","slug":"fix-pl2303-phased-out-error","status":"publish","type":"post","link":"https:\/\/www.systweak.com\/blogs\/fix-pl2303-phased-out-error\/","title":{"rendered":"Fix PL2303 Phased Out &#8211; Windows 11\/10"},"content":{"rendered":"<p style=\"text-align: justify;\">Are you facing difficulty with your Prolific <a href=\"https:\/\/www.systweak.com\/blogs\/how-to-fix-usb-ports-not-working-issue-in-windows-10\/\" target=\"_blank\" rel=\"noopener\">USB<\/a> serial adapter and encountering the <strong>PL2303 phased-out error\/pl2303hxa phased-out error<\/strong>? Luckily, you are reading the right post that will help fix the issue and will make the yellow exclamation mark disappear.<\/p>\n<p style=\"text-align: justify;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-27769\" src=\"https:\/\/cdn.systweak.com\/content\/wp\/bg_systweak_com\/uploads\/2022\/06\/network-adapters.webp\" alt=\"network-adapters\" width=\"354\" height=\"126\" sizes=\"(max-width: 354px) 100vw, 354px\" \/><\/p>\n<h3 style=\"text-align: justify;\">What is Prolific PL2303?<\/h3>\n<p style=\"text-align: justify;\">A USB-to Serial adapter cable connects your PC to the devices with serial ports, like PLC (Programmable Logic Controller). When a device is connected to the computer, Windows automatically installs corresponding drivers. These drivers help Windows read the device and communicate with it. In some cases, Windows fails to install the compatible drivers, and you face issues like <strong>PL2303 phased-out error<\/strong>. This article focuses on fixing it.<\/p>\n<h3 style=\"text-align: justify;\">Causes for PL2303 Windows Driver Error<\/h3>\n<ul style=\"text-align: justify;\">\n<li>Outdated <a href=\"https:\/\/www.systweak.com\/blogs\/how-to-install-usb-3-0-drivers-on-windows-10\/\" target=\"_blank\" rel=\"noopener\">USB drivers<\/a><\/li>\n<li>Corrupt Universal Serial Port driver<\/li>\n<li>Missing USB driver<\/li>\n<\/ul>\n<p style=\"text-align: justify;\">While the exact reason is unknown, you can try the solutions below to fix the issue.<\/p>\n<p style=\"text-align: justify;\"><strong>Must Read:<\/strong> <a href=\"https:\/\/www.systweak.com\/blogs\/mtp-usb-device-driver-not-working\/\" target=\"_blank\" rel=\"noopener\">Fix \u201cMTP USB Device Driver Failed\u201d Problem for Windows 11, 10, 8, 7<\/a><\/p>\n<h2 style=\"text-align: justify;\">Ways to Fix the Prolific PL2303 Driver Error &#8211; Windows 11\/10<\/h2>\n<h3 style=\"text-align: justify;\"><span lang=\"EN\">Fix 1 &#8211; Roll Back The Prolific USB driver<\/span><\/h3>\n<p style=\"text-align: justify;\">Keeping drivers updated is recommended to ensure the connected device works with maximum functionality and without any. However, sometimes driver updates can also cause problems. You must roll back drivers and install the compatible update in such cases. With that being said, after upgrading the PC to the latest version of the Prolific USB driver, if you are facing issues, follow these steps to roll back the driver and re-install the driver.<\/p>\n<p style=\"text-align: justify;\"><div class=\"color-box\">\n<div class=\"shadow\">\n<div class=\"info-tab note-icon\" style=\"background:#47ADE0\"><i><\/i><\/div>\n<div class=\"note-box\" style=\"background:#d5e9f6\">\n<p> <strong> Note : <\/strong>Unplug the serial adapter and re-plug after following the steps explained below.<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p>\n<p style=\"text-align: justify;\">1. Right the Start button &gt; select Device Manager from the context menu.<\/p>\n<p style=\"text-align: justify;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-26858\" src=\"https:\/\/cdn.systweak.com\/content\/wp\/bg_systweak_com\/uploads\/2022\/02\/device-manager.webp\" alt=\"device-manager\" width=\"260\" height=\"438\" \/><\/p>\n<p style=\"text-align: justify;\">2. Double click Ports (COM &amp; LPT) &gt; select PL2303HXA PHASED OUT SINCE 2012, PLEASE CONTACT YOUR SUPPLIER<br \/>\n&gt; right-click &gt; select Update driver.<\/p>\n<p style=\"text-align: justify;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-27770\" src=\"https:\/\/cdn.systweak.com\/content\/wp\/bg_systweak_com\/uploads\/2022\/06\/Ports-COM-LPT-device-manager.webp\" alt=\"Ports (COM &amp; LPT) device manager\" width=\"732\" height=\"536\" sizes=\"(max-width: 732px) 100vw, 732px\" \/><\/p>\n<p style=\"text-align: justify;\">3. Select Browse my computer for drivers.<img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-26638\" src=\"https:\/\/cdn.systweak.com\/content\/wp\/bg_systweak_com\/uploads\/2021\/05\/search-automatically-for-drivers.webp\" alt=\"search automatically for drivers\" width=\"745\" height=\"467\" sizes=\"(max-width: 745px) 100vw, 745px\" \/><\/p>\n<p style=\"text-align: justify;\">4. Choose Let me pick from a list of available drivers on my computer.<\/p>\n<p style=\"text-align: justify;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-27771\" src=\"https:\/\/cdn.systweak.com\/content\/wp\/bg_systweak_com\/uploads\/2022\/06\/browse-for-drivers.webp\" alt=\"browse-for-drivers\" width=\"555\" height=\"300\" sizes=\"(max-width: 555px) 100vw, 555px\" \/><\/p>\n<p style=\"text-align: justify;\">5. Select previous version &gt; Next.<\/p>\n<p style=\"text-align: justify;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-27772\" src=\"https:\/\/cdn.systweak.com\/content\/wp\/bg_systweak_com\/uploads\/2022\/06\/select-device-driver.webp\" alt=\"select-device-driver\" width=\"597\" height=\"367\" sizes=\"(max-width: 597px) 100vw, 597px\" \/><\/p>\n<p style=\"text-align: justify;\">6. This will automatically install the selected driver.<br \/>\n7. Reconnect the driver once the process is finished to see how things go.<\/p>\n<p style=\"text-align: justify;\"><strong>Must Read:<\/strong> <a href=\"https:\/\/www.systweak.com\/blogs\/wi-fi-connected-but-no-internet-problem\/\" target=\"_blank\" rel=\"noopener\">Solve The \u201cWi-Fi connected but no internet\u201d Problem in Windows PC?<\/a><\/p>\n<h3 style=\"text-align: justify;\">Fix 2: Troubleshoot the Driver Was Not Successfully Installed<\/h3>\n<p style=\"text-align: justify;\">Different error codes explain the problem. The driver was not successfully installed, which explains the chip is counterfeit. To stop piracy, the manufacturer shows this error message. Protect yourself and your PC from this <strong>error code<\/strong> and ensure the update is compatible with the Windows (32-bit or 64-bit you are running. Below we explain different ways to fix the issue.<\/p>\n<h4 style=\"text-align: justify;\">Fix for Windows 64-bit<\/h4>\n<p style=\"text-align: justify;\">To fix the issue with Prolific pl2303 USB to Serial Adapter on Windows, follow these steps:<\/p>\n<ol style=\"text-align: justify;\">\n<li>Download PL2303_64bit_Installer.exe from the <a href=\"https:\/\/www.prolific.com.tw\/en\/home\/?utm_source=systweakblog\" target=\"_blank\" rel=\"noopener nofollow\">official website <\/a>and save it.<\/li>\n<li>Detach all the connected USB to Serial adapter &gt; double click the setup file.<\/li>\n<li>Follow the instructions you see on the screen.<\/li>\n<li>Restart your computer and get the USB up and running.<\/li>\n<\/ol>\n<p style=\"text-align: justify;\">Even after following the steps above, if the problem persists, go to Device Manager and check the version and date of the driver.<\/p>\n<p style=\"text-align: justify;\">1. Press Ctrl + X &gt; Device Manager.<\/p>\n<p style=\"text-align: justify;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-26605\" src=\"https:\/\/cdn.systweak.com\/content\/wp\/bg_systweak_com\/uploads\/2021\/12\/device-manager.webp\" alt=\"device-manager\" width=\"188\" height=\"316\" \/><\/p>\n<p style=\"text-align: justify;\">2. Double click Port (LPT COM) category &gt; right-click Prolific USB to Serial &gt; Properties.<\/p>\n<p style=\"text-align: justify;\">3. Click the Driver tab here; the version should be 3.3.2.102 with a date. If you are running a 32-bit version of Windows, it should be 2.0.2.8.<\/p>\n<p style=\"text-align: justify;\">4. If the date is incorrect, you must update the driver. To do so, you can use the third-party driver updater software &#8211; Advanced Driver Updater.<\/p>\n<h3 style=\"text-align: justify;\">Automatic Way to Update Prolific PL2303 driver<\/h3>\n<p style=\"text-align: justify;\">If time or technical skills are your constraints, you can automatically update Prolific USB to the serial driver with Advanced Driver Updater. The tool will automatically read your PC details and find the compatible driver updater for<strong> the PL2303 driver<\/strong>. To use it, follow these instructions:<\/p>\n<p style=\"text-align: justify;\">1. Download and install <a href=\"https:\/\/www.systweak.com\/blogs\/advanced-driver-updater-review\/\" target=\"_blank\" rel=\"noopener\">Advanced Driver Updater<\/a>.<\/p>\n<div class=\"download_buttons_section\"><p style=\"text-align: justify;display:none;\" class=\"downloadnow-btn-show os-windows\" data-eventsource=\"DownloadNow_post_button\"><a data-param=\"systweakblog,wp_json\/wp\/v2\/posts\/6496,pos-1,135\" data-operation=\"iframe\" class=\"ds-download-link \" rel=\"nofollow\" href=\"https:\/\/www.systweak.com\/blogs\/download-product\/adu\/w\/6496\/1\" onclick=\"gtag('event', 'ProductDownloadSysBlog', { 'event_label' :'fix-pl2303-phased-out-error', 'event_category':'windows-1' });\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full\" src=\"https:\/\/bg.systweak.com\/blogs\/wp-content\/plugins\/download-button-shortcode-new\/images\/window_btn.png\" alt=\"download\" width=\"250\" height=\"65\"><\/a><\/p><\/div>\n<p style=\"text-align: justify;\">2. Launch the tool and click the Start Scan Now button to scan the PC for outdated drivers.<\/p>\n<p style=\"text-align: justify;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-26978\" src=\"https:\/\/cdn.systweak.com\/content\/wp\/bg_systweak_com\/uploads\/2021\/04\/Advanced-Driver-Updater.webp\" alt=\"Advanced-Driver-Updater\" width=\"697\" height=\"536\" sizes=\"(max-width: 697px) 100vw, 697px\" \/><\/p>\n<p style=\"text-align: justify;\">3. The scan will take depending on the number of connected devices.<\/p>\n<p style=\"text-align: justify;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-27133\" src=\"https:\/\/cdn.systweak.com\/content\/wp\/bg_systweak_com\/uploads\/2022\/10\/adu-scan-start1.webp\" alt=\"adu-scan-start1\" width=\"705\" height=\"543\" sizes=\"(max-width: 705px) 100vw, 705px\" \/><\/p>\n<p style=\"text-align: justify;\">4. To manually install the updated version of the Prolific driver, click the Update driver link &#8211; for the Free version) However, if you are a registered user, things are simple; by clicking the Update All to <a href=\"https:\/\/www.systweak.com\/blogs\/how-to-update-outdated-drivers-in-windows\/\" target=\"_blank\" rel=\"noopener\">update all outdated driver<\/a>, you can get the job done instantly.<\/p>\n<p style=\"text-align: justify;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-27384\" src=\"https:\/\/cdn.systweak.com\/content\/wp\/bg_systweak_com\/uploads\/2023\/09\/click-on-update-all-button.webp\" alt=\"click-on-update-all-button\" width=\"704\" height=\"541\" sizes=\"(max-width: 704px) 100vw, 704px\" \/><\/p>\n<p style=\"text-align: justify;\">5. Restart the PC when done.<br \/>\n6. Now try connecting the device should not face any problem.<\/p>\n<h3 style=\"text-align: justify;\">How To Download PL2303 Driver On Windows PC?<\/h3>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">If you want to download the PL2303 drivers on a Windows PC, then you have to visit the official website and download the latest version. We have explained all the steps that you need to carry out.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">1. Navigate to the <\/span><a href=\"https:\/\/www.prolific.com.tw\/en\/portfolio-item\/pl2303gs\/?utm_source=systweakblog\" target=\"_blank\" rel=\"noopener nofollow\"><span style=\"font-weight: 400;\">official website of Prolific Technology<\/span><\/a><span style=\"font-weight: 400;\">.<br \/>\n<\/span><span style=\"font-weight: 400;\">2. Scroll down until you see the \u201cDrivers &amp; Software\u201d section.<br \/>\n<\/span><span style=\"font-weight: 400;\">3. Click on the Download button under this section, and a compressed file of 24MB will be downloaded to your computer.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-32415\" src=\"https:\/\/cdn.systweak.com\/content\/wp\/bg_systweak_com\/uploads\/2022\/06\/Prolific-Drivers-Software.webp\" alt=\"Prolific Drivers &amp; Software\" width=\"780\" height=\"375\" sizes=\"(max-width: 780px) 100vw, 780px\" \/><\/span><span style=\"font-weight: 400;\">4. Right-click the zip file and extract the contents to a new folder.<br \/>\n<\/span><span style=\"font-weight: 400;\">5. Scan through the contents and double-click on the installer executable file.<br \/>\n<\/span><span style=\"font-weight: 400;\">6. Follow the onscreen instructions to complete the installation process.<br \/>\n<\/span><span style=\"font-weight: 400;\">6. Restart your PC and check the device connected to PL2303.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Scroll down on the official page to carry out a successful PL2303hxa phased-out driver download for older Windows versions like Windows 8 and 7.<\/span><\/p>\n<p style=\"text-align: justify;\">With the help of the above solutions, you can update the driver and fix the <a href=\"https:\/\/www.systweak.com\/blogs\/fixed-prolific-usb-to-serial-driver-not-working-on-windows\/\" target=\"_blank\" rel=\"noopener\">Prolific USB to Serial driver not working<\/a> on Windows 11\/10. The manual steps might be a bit overwhelming and confuse you. But there\u2019s nothing to worry about. Just follow the step-by-step instructions. Also, you can use Advanced Driver Updater, the driver updating tool for Windows will help resolve the issue.<\/p>\n<h3 style=\"text-align: justify;\">Frequently Asked Questions (FAQs)<\/h3>\n<p style=\"text-align: justify;\"><strong>1. What is the use of PL2303?<\/strong><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">The PL2303 is a translator between the USB port and older devices that use TTL, RS-232, or other serial communication standards. It allows the modern PC\u2019s USB ports to communicate to older serial devices.<\/span><\/p>\n<p style=\"text-align: justify;\"><strong>2. Is PL2303 not supported by Windows 11?<\/strong><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">All newer versions of PL2303, like PL2303GC or PL2303GT, etc are supported by Windows 11 OS. This is because Prolific has developed Windows 11 WHQL-certified drivers that are available to download from the official website or via Windows Update.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">However, older PL2303 chip variants like PL2303TA, PL2303HXA, etc have reached the end-of-life stage and are not supported by Windows 11. They will generate an error message like \u201cThis is not Prolific PL2303\u201d on Windows 11.<\/span><\/p>\n<p style=\"text-align: justify;\"><strong>3. Is RS232 faster than USB?<\/strong><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Not at all, the RS232 is slower than USB when compared in terms of data rate. Take a look at the table below.<\/span><\/p>\n<table style=\"height: 247px;\" width=\"438\">\n<tbody>\n<tr>\n<td><span style=\"font-weight: 400;\">Technology<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Speed<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">RS-232<\/span><\/td>\n<td><span style=\"font-weight: 400;\">9.6 kbps to 115.2 kbps<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">USB 1.1<\/span><\/td>\n<td><span style=\"font-weight: 400;\">12 Mbps<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">USB 2.0<\/span><\/td>\n<td><span style=\"font-weight: 400;\"> 480 Mbps<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">USB is a thousand times faster than RS232.<\/span><\/p>\n<p style=\"text-align: justify;\"><strong>4. Can a USB be converted to RS232?<\/strong><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Yes, a USB can be converted to RS232 by using a USB-to-RS232 adapter. This adapter contains a small converter chip, namely PL2303 that can help translate RS232 to USB by converting data into serial signals and repeats the process vice versa.<\/span><\/p>\n<p style=\"text-align: justify;\"><strong>Related:<\/strong><\/p>\n<p style=\"text-align: justify;\"><a href=\"https:\/\/www.systweak.com\/blogs\/how-to-fix-asus-bluetooth-driver-not-working\/\" target=\"_blank\" rel=\"noopener\">Fix ASUS Bluetooth Driver Not Working<\/a><br \/>\n<a href=\"https:\/\/www.systweak.com\/blogs\/how-to-update-realtek-bluetooth-driver\/\" target=\"_blank\" rel=\"noopener\">Update Realtek Bluetooth Driver \u2013 Windows 11,10<\/a><br \/>\n<a href=\"https:\/\/www.systweak.com\/blogs\/fix-amd-ryzen-master-driver-not-installed\/\" target=\"_blank\" rel=\"noopener\">Fix AMD Ryzen Master Driver Not Installed Properly<\/a><br \/>\n<a href=\"https:\/\/www.systweak.com\/blogs\/how-to-download-and-update-realtek-audio-console-in-windows\/\" target=\"_blank\" rel=\"noopener\">Realtek Audio Console in Windows 11, 10, 8, 7<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Are you facing difficulty with your Prolific USB serial adapter and encountering the PL2303 phased-out error\/pl2303hxa phased-out error? Luckily, you are reading the right post that will help fix the issue and will make the yellow exclamation mark disappear. What is Prolific PL2303? A USB-to Serial adapter cable connects your PC to the devices with&hellip; <a class=\"more-link\" href=\"https:\/\/www.systweak.com\/blogs\/fix-pl2303-phased-out-error\/\">Continue reading <span class=\"screen-reader-text\">Fix PL2303 Phased Out &#8211; Windows 11\/10<\/span><\/a><\/p>\n","protected":false},"author":12,"featured_media":27773,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1,13],"tags":[],"class_list":["post-6496","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-driver-updater","category-how-to","entry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3-RC2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Fix PL2303 Phased Out - Windows 11\/10<\/title>\n<meta name=\"description\" content=\"Don\u2019t know how to fix connectivity issues with Prolific USB to Serial adapter? 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