1. For iPhone XR and above series (included For iPhone 13 14 series), please don't cut the card sticker into two segments, it will hurt its functionality.
2. If don't know how to install it, you can log in to the website on the product box, there is a tutorial for different detailed models.
3. Due to the feature that the product will only pop up the menu once every time you insert the card, if you choose the wrong mode, you need to change a mobile phone card with the card sticker and insert it once, and then replace the original mobile phone card with the card sticker to pop up the menu again!
Steps: