A fix for the TYT MD-UV390 Plus issue where users load AES keys but the radio does not encrypt
The link below is the location to download the new V2.41 which fixes the issue, just reload your keys with the new software.
https://www.buytwowayradios.com/downloads/dl/file/id/1696/product/6074/tyt_md_uv390_programming_software_v2_41.zip
