Ah right your is 1000(mine is 1000 too but i always forgot stuff sorry), yes you install it with sony mc in. After you move the vitashell and asm to internal memory the one in ux0 will gone you moved it after all, turn off your vita and remove sony mc. Turn it on if both vitashell and asm is there and you can run it then you moved it successfully.
Try the second step from my previous reply after this.
Try the second step from my previous reply after this.