Smartphone: what is NFC, how does it work and what is it for? | android | Mobile phone | | smartphone
The mobile phone or smartphone has become an important tool in our daily lives, which we use to communicate or to entertain ourselves. However, the device has some features that many users are unaware of. This is the case of the NFC that is found in the Quick Settings of all cell phones. What is it and what is it for? Here we explain it to you.
What is the NFC of my phone
Few users know that NFC connectivity has become an essential element in current smartphones, since it is a short-range, high-frequency wireless communication technology that allows information to be transmitted between two devices that have a chip of this type.
How NFC works
NFC communication is done by induction by creating a magnetic field through the coiled antennas of two nearby devices. Also, the transmission speed is not too fast as it can only reach 424 kbit/s transfer speed. In addition, its maximum reach range is 20 centimeters. The NFC supports two protocols which are as follows:
- Active mode: when both devices have the NFC chip, they generate the electromagnetic field to share information
- Passive mode: only one device is active and the other does not have its own power supply, so it needs the electromagnetic field of the first to exchange data.
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What is NFC used for
The NFC It is an excellent digital solution and has a large number of functionalities. Here we detail what they are:
- Instant synchronization of devices: just by bringing your mobile closer to some speakers, these would be automatically synchronized in a simpler way than having to pair them via Bluetooth
- Digital wallet: With NFC you can use your cell phone, which must be linked to your bank cards to pay. You just have to bring the phone closer to the payment team of the business
- IDENTIFICATION: this technology can replace the use of a badge or access card to open the office door, for example, or access public transport
- Share data: If you are near another NFC-enabled cell phone, you can share photos, files, or a link to a web page with it.
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How to calibrate the battery on an Android phone
Although there are many technical details to understand, the calibration process is usually a good practice, even if your phone shows no signs of needing it. Doing it, yes, is a long process that can take about a day. These are the steps:
- Charge your battery to the maximum: it is important that you do it with its original charger, since these are the most optimal to reach the real maximum point of its capacity
- Once you’ve charged 100%, use your phone until it’s completely spent: you can use it as often or intensely so you get it sooner.
- Let the cell phone rest: for a minimum of 4 hours, leave your cell phone turned off and without battery charge
- Charge it again: do not turn on the phone, just connect it with its original charger and let it complete the charge up to 100%