Right-click and select -> Browse my computer for driver software and point it to your extracted driver folder.

Which you are running (e.g., v5.0, v5.42)?

If your PC fails to recognize the virtual COM port after running the installers, you must manually assign the driver. Keep your SR2USB01 cable connected to the computer. Press Windows Key + X and select .

The specific driver was designed for Windows 10, but many users have reported that it can also function on Windows 11 64-bit systems with similar setup procedures.

Use this method only if the official driver fails. It uses a vintage driver (3.3.2.105) known to work with older Prolific chips.

Unplug the USB cable from the PC, restart the computer, and run SR2_USB01_H2.x_Setup.exe fresh. System Cache & Registry Quick Fix for Unsigned Legacy Drivers

Some older cables use FTDI or Prolific chipsets. If official drivers fail, users often find success by manually installing FTDI CDM drivers (v2.12.28 or later). Key Compatibility Notes

Ensure you download version V1.0 or higher, which includes 64-bit support for Windows 10. 2. Installation Steps Before plugging in the cable, follow this sequence: Disconnect the USB cable from your computer.

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