Very common with the GT3. Refer to link below.
http://www.miklor.com/COM/UV_ErrorMess.php#error1

John
http://www.miklor.com

From: chirp_users-bounces@intrepid.danplanet.com [mailto:chirp_users-bounces@intrepid.danplanet.com] On Behalf Of Al Manchester
Sent: Friday, May 20, 2016 5:15 PM
To: chirp_users@intrepid.danplanet.com
Subject: Re: [chirp_users] Unable to program

On May 20, 2016 3:02 PM, "Al Manchester" <amanchester26@gmail.com> wrote:

Good afternoon,
I attempted to program a newly purchased Baofeng GT 3TP
It is my 5th and 6th radio and have never had any problems before today.
This is the message I'm getting
Any help is greatly appreciated, thank you very much