The LAA0744X is the software for the DPHX5102X models of Bendix King Handheld Radios. It is not cross compatible with the GPH models of radios. See LAA0738CD for GPH5102 or LAA0738P for GPH5102XP Radios
Customer Support at BendixKingRadios.com answered on September 10, 2020
Software worked perfectly! Go the download route and get it today! Review by Jared S
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Purchased this and received the link to download almost instantly. It was not the latest version, but after a quick chat with the great customer service at 49er I was sent a link to download the latest version. Overall very satisfied. (Posted on 9/26/2017)