<div dir="ltr"><div>It looks like FTDI has reversed course. Their new driver (to be released) still won't work with a fake chip, but it won't change the PID.</div><div><br></div><div>See <a href="http://hackaday.com/2014/10/24/ftdi-screws-up-backs-down/">http://hackaday.com/2014/10/24/ftdi-screws-up-backs-down/</a> and <a href="http://www.ftdichipblog.com/?p=1053">http://www.ftdichipblog.com/?p=1053</a> .</div><div><br></div><div>"Microsoft has since released a statement and rolled back two versions of the FTDI driver to prevent counterfeit chips from being bricked. The affected versions of the FTDI driver are 2.11.0 and 2.12.0, released on August 26, 2014. The latest version of the driver that does not have this chip bricking functionality is 2.10.0.0, released on January 27th. If you’re affected by the latest driver, rolling back the driver through the Device Manager to 2.10.0.0 will prevent counterfeit chips from being bricked. You might want to find a copy of the 2.10.0 driver; this will likely be the last version of the FTDI driver to work with counterfeit chips."</div><div><br></div><div class="gmail_extra"><div>73,<div>Bob, N6TV</div></div>
<br><div class="gmail_quote">On Wed, Oct 22, 2014 at 2:41 PM, Bob Wilson, N6TV <span dir="ltr"><<a href="mailto:n6tv@arrl.net" target="_blank">n6tv@arrl.net</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"><div dir="ltr">I have not experienced this myself. I don't know anyone personally who has seen this yet.<div><br></div><div>Reports indicate that the latest Windows Update will permanently damage a USB-to-Serial adapter if it is found to be using a "fake" or "cloned" FTDI chip instead of a genuine FTDI chip.</div><div><br></div><div>This applies to Windows 7 and later. You can read more about it there:</div><div><br></div><blockquote style="margin:0px 0px 0px 40px;border:none;padding:0px"><div><a href="http://hackaday.com/2014/10/22/watch-that-windows-update-ftdi-drivers-are-killing-fake-chips/" target="_blank">http://hackaday.com/2014/10/22/watch-that-windows-update-ftdi-drivers-are-killing-fake-chips/</a></div><div><a href="http://www.eevblog.com/forum/reviews/ftdi-driver-kills-fake-ftdi-ft232/" target="_blank">http://www.eevblog.com/forum/reviews/ftdi-driver-kills-fake-ftdi-ft232/</a></div></blockquote><div><div><br></div><div><div>Recommendation: if you use a USB-to-Serial adapter based on the FTDI chipset, avoid any Windows Updates until after contest season, or use Windows XP instead of Windows 7 or 8.</div><div><br></div><div>If you use an adapter based on Prolific, you may have other problems. I believe there are far more fake Prolific adapters than fake FTDI adapters. These fake Prolific adapters often cause a random "Blue Screen of Death," or they work for a little while then mysteriously stop working.</div><div><br></div><div>How do you know if you have a genuine USB-to-Serial adapter or a fake one? There apparently is no easy way to tell (yet). Post something here if you discover a utility that can help.</div><div><br></div><div>In the mean time, buy name brand (such as GearMo) from reputable dealers (such as Amazon.com), and you should be OK.</div><div><br></div><div>73,<div>Bob, N6TV</div></div>
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