Chosen Solution

I am just wondering if the LCD connection is the same between the Galaxy S4 Mini and the Galaxy S4?

No, The first one is 1080 x 1920 pixels and the second one - 540 x 960 pixels. Regards.

No, the connectors are of similar type, but they are not the same. The s4 mini connector is a bit longer, so it won’t fit. It also has more pins. I don’t know if they are electrically compatible. Theoretically, if you somehow connected the right pins, for example by a custom made connector cable .. it might work, or break something. Regards,