Since his departure, in the first of the iPhone that we knew, back in 2007, Apple has included in all its mobile phone models a hidden sensor that, despite being visible to everyone, not much is said about it.
It would be a sticker that, when in contact with water or another liquid, changes color, thus showing the company if your iPhone would have been exposed to it, thus avoiding covering the damage caused by this reason, whether it is under warranty or not.
This sensor, as we said, is found in all models, so if you have an iPhone you can check it, whatever it is. Also, from the first one, its location is the same, inside the SIM card slot.
It is very easy to locate, and as we said, everyone has it there, however, in case you have questions, on the official website, which we leave you hereall the models appear and an image that shows it better.
The sensor has the name LCI (Liquid Contact Indicator) and as it means, it is a “snitch” that will tell us if the iPhone has been exposed to any liquid.
If you have a phone with water resistance it will also have it, since that slot is well sealed and no liquid should enter inside, except for misuse or manipulation, so if your phone also has the positive indicator, Apple will not cover it with the warranty.
How to check its status for ourselves?
Well, it's very simple, we will only have to open the cover where the SIM is locatedlocate the sensor (like the one in the previous image) and check its color. If it is white, it means that the iPhone has not been in contact with any liquid, and even if you put it in a pool, its sealing would have worked correctly.
If, on the other hand, this “sticker” is found on redI don't have such good news, your smartphone would have suffered contact with liquids and despite not having had any problems, anything that happens to you from today that may be related to it will not be covered by the warranty, since you would have already lost it.
And now that you know, you can take a look at your iPhone and check if it has ever been in contact with any liquid or, luckily, is still free of them. If you have an iPod you can also find out, since they also include it.
As information, it must be said that the sensor only detects waterso it will only change color if it has been water or is made up in part of it (like a beer), however, if the liquid does not contain any water, despite being water, its color will not change. Although I doubt that you dropped it in a gas can, for example, but if that were the case, you could outwit Apple, since it is not prepared for it.
