Micro-SIM card, also known as the fourth form factor integrated circuit board, is a new generation of mobile phone SIM card. It is smaller and thinner than the micro-SIM being used.
Miniature is a small sim card. There are three kinds of sim cards in the market: ordinary sim card, Micro SIM card and nano sim card.
Extended data check SIM card
1. Make sure that the SIM card is not bent or damaged. If it is bent or damaged, you need to contact the operator to replace the new SIM card.
2. You can first take out the SIM card from the device and put it in other mobile phones to see if it can be used normally.
3. After confirming that the SIM card can be used normally, try to insert the SIM card.
Insert the card pin vertically into the small hole next to the card slot of the equipment, eject the SIM card slot with a little force, gently pull it out and place the SIM card. When placing, please pay attention to the gap in the corner of the SIM card. Because of the gap, the SIM card can only be loaded in one direction.
SIM cards can be placed on the front and back of iPhone XR and max card slots. After placement, the bracket can be completely inserted into the device according to the orientation when the bracket is taken out, or the bracket can be inserted only in one direction. It is necessary to ensure that the SIM card holder is completely closed and not loose.