Starting with Windows 11, Device Manager's automatic update searches local computer only, not Windows Update. You may need to click "Search for updated drivers on Windows Update" if no local driver is found.
Download the (PL2303_Prolific_DriverInstaller_v...zip). Unzip and run the .exe file. Restart your computer. B. CH340 / CH341 Driver Update
On Windows 11, Prolific official drivers (v6.7.0 and above) will not work with PL2303 HXD, HXA, or non-TA revisions. They will show "Error 10: This device cannot start" or "PL2303HXA Self-Test Failed". If you have an old adapter, you have three options: buy a genuine TA version, use a different chipset, or use an old driver (which weakens security). usb to ttl driver windows 11 upd
Once the most popular, now a source of frustration on Windows 11. Prolific has deliberately removed support for older clones and revisions in their latest drivers, requiring users to either find legacy drivers or replace their adapters.
Highly stable, widely used in official development boards. Starting with Windows 11, Device Manager's automatic update
Download the from Silicon Labs. Extract the ZIP file. Right-click silabser.inf and select Install . 2. PL2303 (Prolific) - Solving "This is not Prolific"
If you already have a driver installed but need to update it, or if the automatic installation didn't work properly, use one of these methods. Unzip and run the
Before downloading anything, you must identify the bridge chip. Generic drivers do not exist. Open (Right-click Start button > Device Manager). Look under Ports (COM & LPT) or Other devices .
| Chip | Common labels on adapter | Typical VID/PID | |-------------|-----------------------------------|-----------------------| | CH340/CH341 | CH340G, CH340C, CH341A | 1A86:7523 / 1A86:5523 | | CP2102/CP210x| CP2102, CP2104, CP2105 | 10C4:EA60 | | FTDI FT232 | FT232RL, FT232R, FTDI | 0403:6001 | | PL2303 | PL2303HX, PL2303TA, PL2303RA | 067B:2303 |