I have programed over 100 of these radios, and using a large number of different cables, have never run into a bad one. I have had the following issues.

Not having the right driver.
Plug the driver in and open “About this Mac”, “System Report”, “USB HI-Spped Bus”, “Hub”, & “USB-Serial Controller”.  This will give the the information you need to search for the right driver.  After downloading it, install.

Not having the cable pushed in far enough.
Sometimes this is hard.  Others have cut the cable housing down, but I have never had to do this.  I just work it way into the full “In” position.

Not letting the computer have enough time between steps.
This is the hardest step for me. After giving either the “Download from Radio” or the “Upload to Radio” command, I give a long 5 count between each further step.  Sometimes it even me 10 seconds per step!

Using the above methods, I have gotten almost all of them programed in just a few minutes.

Good luck,
N7IY
-----
Peter J. McClosky, N7IY
Eugene, Oregon
pmcclosky@earthlink.net
n7iy@arrl.net
http://home.earthlink.net/~pmcclosky/

On Oct 21, 2015, at 12:02 PM, kc6iih via chirp_users <chirp_users@intrepid.danplanet.com> wrote:

Cheap cables with bad prolific chips rarely work.




JOCK  KC6IIH
Sent from my Samsung Galaxy Tab®|PRO


-------- Original message --------
From: Ryan Tourge
Date:10/21/2015 7:31 AM (GMT-08:00)
To: Discussion of CHIRP
Subject: Re: [chirp_users] Mac user - inconsistent ability to contact radio

Push real hard on the connector?

On Wed, Oct 21, 2015 at 9:43 AM, Paul Slootweg <paul.slootweg@gmail.com> wrote:
I have the latest of everything installed, the Prolific drivers show
up as started in the Console, and the USB serial device shows up, but
I can rarely download (never mind upload.)
Radio is UV-5RA

Am I missing something?

Paul
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