There was a time when one had to go to STD-PCO to make a call, but now the time has completely changed and now almost every other person is seen holding a smartphone. It also has many advantages, such as: - You can talk to anyone on voice or video call whenever you want, you can get any information whenever you want with the help of the internet, many other things including bank can be done sitting at home, etc.. On the other hand, there are personal things of people in the smartphone, such as personal data, chat, etc. In such a situation, it becomes important that you do not let your smartphone go into other hands, but even if someone uses your smartphone behind your back, then you can know what he has used. You can know the method of checking this in the next slides...

Find out like this:-
Step 1

If you also want to know that if someone has used your smartphone behind your back, then what has he used?
So you can know this easily, just for this you will need a secret code.

Step 2
For this, first of all, you have to open the dial pad on your smartphone.
Then here you have to enter the code *#*#4636#*#*
After entering this, a menu will open in front of you i.e. Testing
To know who accessed your smartphone follow these simple steps

Step 3
Then you have to go to Usage Statistics of this setting.
Here you will see a list
After this, you will see many apps
These are the apps used on your smartphone

Step 4
Then you have to shorten the visible app.
You have to shorten it to the last time used the app.
Now the last app that comes in front of you is the one that was used last.
If you have not run this app, then someone has run this app behind your back and you can get information here about how long this app was run.

(PC: iStock)