<div dir="ltr">If you have the ability to go back to Lion, I would do that ASAP! I had a Lion backup (SuperDuper) on an external USB drive, and foolishly did not retain it, instead I backed up my Yosemite installation. HUGE mistake. So I am cut off from going back.<div><br></div><div>I could explain if we were sitting down together at a table with the computer in front of us, but probably not via email. Basically, you need to be comfortable using the Terminal (In Finder: Applications | Utilities | Terminal.app). It is a command line interface, no graphical interface. You type (or better yet, copy and paste) commands, enter your password, say a magic incantation (just kidding but it doesn't hurt) and press return. If all goes well, the command will execute; if not, you risk causing all kinds of problems with your computer, which is why I say it is not for the faint at heart! You have been warned!</div><div><br></div><div>Assuming you have the Terminal open, copy this and paste it to the command prompt:</div><div><br></div><div>sudo nvram boot-args="kext-dev-mode=1"</div><div><br></div><div>The "sudo" makes you the superuser (administrator) and the command that follows allows unsigned drivers to be loaded.</div><div><br></div><div>Now you would install your driver. I used the Lion driver from Miklor.com and it worked at the beginning. </div><div><br></div><div>It was necessary to manually load the driver the first time with another command in Terminal (again, copy and paste):</div><div><br></div><div>sudo kextload /System/Library/Extensions/osx-pl2303.kext</div><div><br></div><div>It worked for a while, then although the driver continued to show up in CHIRP, it always returned the error message "The radio did not respond." Same radio, same cable, work fine on my 2006 white Macbook. </div><div><br></div><div>Like I say, if anybody gets CHIRP working reliably in Yosemite, they need to detail how on a Miklor page!</div><div><br></div><div class="gmail_extra"><div class="gmail_quote">On Sun, Jul 19, 2015 at 3:10 PM, Roos G Mats <span dir="ltr"><<a href="mailto:mats.g.roos@gmail.com" target="_blank">mats.g.roos@gmail.com</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 style="word-wrap:break-word">Thanks PAT,<div><br></div><div>the problem is that I am a normal “deadly guy”, just a simple MAC user, not sure I understand what you teaching me :-)</div><div><br></div><div>Can you please, line by line explain ? Also, will it may work as the upgrade Yosemite ? is it of temporary nature or for ever ?</div><span><font color="#888888"><div><br></div><div>Mats</div></font></span><div><div><div><br><div><blockquote type="cite"><div>On Jul 19, 2015, at 5:04 PM, Pat Anderson <<a href="mailto:anderson5420@gmail.com" target="_blank">anderson5420@gmail.com</a>> wrote:</div><br><div><div dir="ltr">I too went from Lion to Yosemite on my 2011 Macbook Pro. Biggest mistake I have made with any computer ever. I do not have an answer for you. When anybody finds an answer, it deserves a page of its own on <a href="http://Miklor.com" target="_blank">Miklor.com</a>. I have tried everything, I though I had it with this technique, it seemed to work for a while and then it just stopped working as well. But you can try it, good luck and let us know how it works for you:<div><div style="min-height:100%"><div style="width:1024px"><div style="width:822px"><div style="min-height:436px"><div style="min-height:7.60002136230469px"><table cellpadding="0" style="width:792px"><tbody><tr><td><div style="width:533.200012207031px"><div style="font-size:12.8000001907349px"><div style="overflow:hidden"><div bgcolor="#FFFFFF" text="#000000"><span><blockquote type="cite" style="font-size:12.8000001907349px"><div dir="ltr"><div dir="ltr" style="font-size:12.8000001907349px">Here is what I found. The driver is the issue with Yosemite. The built-in FTDI driver prevents the osx-pl2303 driver from loading. The fix (not for the faint of heart) is to do some black magic at the command line.<div><br></div><div>In Terminal, enter:</div><div><br></div><div><pre style="border:0px;font-family:'Courier 10 Pitch',Courier,monospace;font-size:13px;margin-top:0px;margin-bottom:1.625em;outline:0px;padding:0.75em 1.625em;vertical-align:baseline;font-stretch:normal;line-height:1.5;color:rgb(51,51,51);background:rgb(244,244,244)">sudo nvram boot-args="kext-dev-mode=1"</pre></div><div>This allows other (unsigned) drivers to load. The driver that works for me is the Lion driver from <a href="http://miklor.com/" target="_blank">miklor.com</a>.</div><div><br></div><div><span style="font-size:12.8000001907349px">Then manually load the driver (first time only, it will load automatically after that) with this command in Terminal:</span><br></div><div><div style="font-size:12.8000001907349px"><br></div><div style="font-size:12.8000001907349px"><pre style="white-space:pre-wrap;border:0px;font-family:'Courier 10 Pitch',Courier,monospace;font-size:13px;margin-top:0px;margin-bottom:1.625em;outline:0px;padding:0.75em 1.625em;vertical-align:baseline;font-stretch:normal;line-height:1.5;color:rgb(51,51,51);background:rgb(244,244,244)">sudo kextload /System/Library/Extensions/osx-pl2303.kext</pre></div><div style="font-size:12.8000001907349px">This creates the device cu.PL2303-000012FD, be sure that is what you select in the CHIRP Radio dialog in the Port drop-down. Again in the Terminal, do "cd /dev", and then "ls" (without the quotes) to see that the cu.PL2303-000012FD driver is actually loaded.</div></div><div><br></div></div></div></blockquote><br></span></div></div></div></div></td></tr></tbody></table></div></div></div></div></div></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Sun, Jul 19, 2015 at 2:46 PM, Roos G Mats <span dir="ltr"><<a href="mailto:mats.g.roos@gmail.com" target="_blank">mats.g.roos@gmail.com</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 style="word-wrap:break-word"><div><blockquote type="cite"><div class="gmail_extra"><div class="gmail_quote"><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><div><br></div></div></blockquote></div></div></blockquote><span style="font-size:large">Hi I just upgraded my MAC from Lion 10.7 to OS XYosemite 10.10.4, everything with Chirp has been working great till I did the upgrade, does anyone have the “magic” solution? What needs to be added? New Drivers ? or ??</span><div><font size="4"><br></font></div><font size="4">Thankful for help</font></div><div><font size="4"><br></font></div><div><font size="4">Mats<br></font><blockquote type="cite"><div>
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