This is to split the card in half to find out how the memory card (SD card) is made. The internal memory is not corrupted by breaking the upper part. Only the upper bouts featured two cutaways, for easier access to the higher frets. Scratch the top cover with something.
You will see a small coin like a circle. Remove the coin. Below is a movie that can save memory. It looks like a sack that encloses with a drawstring. It works like a CD, but with the small circuits of the copper plate attached to it with an electric current near the top right corner.
The film is similar to a CD, but with a smaller compaction volume that can be loaded as a Gb or Mb. In other words, I made a small CD. However, the amount of penetration varies slightly from room to room. Now you know how to make a memory card. Do not let go of the card. It can contain important information. So show it to the experts and find the data and records inside.