Chosen Solution

where can I get a replacement recepticle for the micro SD card? Or, how can i repair it? The micro card does not “lock in”.

The micro sd slot is part of the mother board and therefore would need to be micro soldered to replace The motherboard itself can be replaced and is about 80 dollars here Galaxy Tab 3 10.1 Motherboard hope this helps Samsung Galaxy Tab 3 10.1 Motherboard Replacement