ither unsupported device or no device found

[xuzhimin1993]

Hello, brother, my macbook 10.14.6，phone:x 13.4，after I installed mojave security update 2020-002, I couldn't fix the g value, and it kept showing "Either unsupported device or no device found", and I reinstalled the system and did not install the 2020-002 update , Normal use, is there any solution?