my at&t g3 unmount the sd card itself.

hi everyone.
im here to ask you about my g3 auto unmoust my samsung evo 32gb class 10.




i asked some friend and they say install the original frimware not the at&t frimware.

please guys help me if i installed another rom on it that will fix it or not.

I'm very tired of this nonsense is it a solution to my problem :crying: