![prolific usb to serial windows 10 drivers prolific usb to serial windows 10 drivers](https://itler.net/wp-content/uploads/2016/11/Prolific-USB-to-Serial-Comm-Port-Error-Code-10-4.jpg)
Right-click on the entry "Please install corresponding PL2303 driver to support WIndows 11 and further OS." and select "Uninstall device".Open the Device Manager (right-click) on the Start Menu and select "Device Manager".Connect the USB to Serial adapter to the computer.zip file to the Desktop or Download folders Download the driver v4.0.10.0 and save the.Let me know if you have any questions or problems with it.Prolific has not yet released a Windows 11 driver for the PL2303HXD chipset used in our USB to Serial Adapter, in the meanwhile we can install an older driver to enable this adapter on Windows 11 systems by performing the following: I actually have a built version which is linked below. Please let me know if you need any assistance with the above. There were problems still so I made some changes to the code, but it appears to be working great now. However, I opted to download the source for the project from and then compiled it myself using Xcode. I then found you could buy an updated driver (new kext package) to get it to work (here: ). I’ve been using I had to follow this to allow the unsigned kernel extensions to load: īasically this is the important command: sudo nvram boot-args=”kext-dev-mode=1”Īfter the above, the devices were recognized, but connecting to devices with screen (routers, firewalls, switches) resulted in a blank screen with no data passing in either direction.
![prolific usb to serial windows 10 drivers prolific usb to serial windows 10 drivers](https://www.tronisoft.com/store/image/cache/catalog/usbser/usb-serial-prolific-2441-500x500.jpg)
More importantly, you’ll have your device working and can finally fix that router you’re supposed to be fixing…īoth of my USB to Serial adapters (Belkin and (yes) Radio Shack adapters) stopped working after upgrading to Yosemite. "/System/Library/Extensions/ProlificUsbSerial.kext" Signature -67062 0xFFFFFFFFFFFEFA0A for kext If you check your logs, you’ll see its back to a warning when the kext is loaded: 11/12/14 19:12:41.747 : kext-dev-mode allowing invalid To manually load the kext: sudo kextload /System/Library/Extensions/ProlificUsbSerial.kext Fortunately, with Mac you only need to run this command once and reboot, after which it’s set: sudo nvram boot-args="kext-dev-mode=1"Īfter rebooting, I found that I had to manually load the kext the first time, but it seems to have been auto-loading ever since. You had to do that every time you booted. With Windows Vista, you could hit F8 at boot and boot in a dev mode that allowed any driver to load. Fortunately, I’d already found the workaround. The device driver is the same as the one I already have. No problem, I’ll just install the updated driver! Now with Yosemite, all kernel extensions must be signed or they won’t load. Apparently, Mavericks has been helpfully logging warnings about this, but since nothing had stopped working, I guess no one did anything to fix it. Well, it’s not actually that bad, but it did remind me of a behavior change in Vista that required all drivers to be signed with a trusted signature. After a bit of searching, I discover that it’s Windows Vista all over again. I ran Console and saw this error when I plugged in my USB adapter: 10/30/14 14:32:09.553 : ERROR: invalid signature forĬom.2303, will not load No problem, I’ll just reinstall the driver, problem solved! This was odd, but I immediately realized it probably had to do with the OS upgrade. They have had the occasional driver issue, but they’ve been good and reliable overall, so I was surprised when I tried to open the device it wasn’t present. I’ve been using this particular model of adapter for a long time. All was fine and dandy until I was onsite and couldn’t console into a router because my ATEN USB to serial adapter wasn’t working… I have an old MacBook that had been running the Yosemite beta, so I wasn’t too worried about upgrading my primary laptop when the Yosemite final was released. New OS upgrades are always shiny, but also come with some level of risk. If you are an OS X user, you know that a new OS has come out.