I have a section on growing them, maybe it helps http://magicalfruit.com/grow.html
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As long as only SOME of the leaves are turning brown, it's no big deal. Most plants go through some level of transplant shock. This is part of why it's best to transplant in the evening, after the sun has gone down.
At any rate, I'm assuming by now you know if it died or lived. For future reference, any time you transplant something (and keep in mind, some plants transplant better than others), there is a method to it. What you want to do is....
1) Dig your new hole first. Have it full prepared (and your soil at hand) before moving the plant you are transplanting.
2) If you are moving it from one pot or planting space to another, it's always a good idea to saturate the roots before replanting. Just use cool water to wet them down. This opens up the pores of the roots and makes it more hospitable to the new environment.
3) Place the transplant in the hole, making sure you fan out the root structure, and place it as deep as you can. Backfill it about half the way, and water it a bit. This helps to eliminate any pockets of air. Those pockets can be ruin for your transplant.
4) Finish back-filling, and lightly press around the plant to secure the soil. This way, you won't have a lot of sinkage when you water. No good for your plants. Water it again. Give it a good watering, but not so much that it pools for a period longer than a minute or so. Best way to do this is to water in increments, and pay attention to how long it takes the soil to absorb the water.
5) Take a look at the plant. Any leaves that are droopy, remove--unless they all are, and then proceed to cutting each leaf in half horizontally. This allows the plant to continue the process of photosynthesis, but also cuts down the energy requirments for the plant, which in turn increases the chance of transplant success. If most of the plant looks healthy after transplant, still be sure to cut at least 1/3 of the foliage in half horizontally. Trust me, it works wonders when it comes to having a transplant be able to recover! Finally, lightly mist the foliage of the plant, and leave it to bounce back. You ought to see new growth in a few days (provided it's growing season, that is).
Just a note: if when you remove the transplant for replanting, you notice a foul smell eminating from the soil or root structure, you've got root rot. You can overcome this, however, so long as you still have some greenery on the plant. You want to completely wash off the roots, and check for any that are dark and mushy. Cut those off. Then, cut the foliage back as stated before--paying extra attention to any area where leaves have dropped or are yellowing. Just prune the heck out of that area--it corresponds to areas of rotten root.
Next, take the plant and soak it for a bit in a solution of 30:1 water and mouth wash (you have to trust me on this), using the cheap, yellow stuff. Let it soak for an hour or so, then plant it as usual. FYI: The mouth wash helps to kill any bad bacteria that might have gotten into the root structure.
Did you plant it in an acidic substrate?
What did you plant it in?
Did you severely stress the plant during re potting? (Lots of root damage, too much manipulation, etc)
Did you apply fertilizers, are some contained in your soil?
https://www.instructables.com/id/Growing-Your-Own-Miracle-Fruit/ comes to mind...