OPPO A72
Android 10.0
1. Remove the card holder
Find the opener for the card holder. Insert the opener into the small hole next to the card holder.
Remove the card holder from your phone.
2. Insert memory card
Turn the memory card so the angled corner of the memory card matches the angled corner of the memory card holder.
Place the memory card in the memory card holder and insert the card holder into your phone.