When people buy or give them a new cell phonethey usually realize that inside the box of the device, apart from having the charger and other accessories, there is a key with which the SIM card is removed from the slot.
This key not only allows you to remove the SIM, instead it works to take out the SD card, depending on the mobile device. But what is the circle of the key for?
What is the use of the circle of the key that removes the SIM card from the cell phone?
Many people have no idea the functionality of the circle of said key, which, although simple, It is essential in case you ever have a problem with SIM card.
According to a video, which has more than two thousand views on YouTube, The circle is a kind of keychain to hang on your keys and take anywhere.
This is the video:
This is so that the person always carries, and does not get in the way or get lost, the key that comes in the box when you buy the cell phone, to change the SD card or the SIM of the operator to which you are registered.
It must be said that all ‘Smartphone’ mobile phones come with this small, but functional and essential tool.