---> read this first <---

This article session "Essential settings for Android devices (target version)" helps you to configure all essential settings on the Android target device - in case you are tracking an Android device where the app was installed and run background on it.

To configure on the target device only. For example, if you install the server version on your device (server version = monitor version installed on YOUR device to view the data log), there is no need to read this article.

Why must you do this? 
Because the app works in the background silently, you must configure the essential settings. If not, it will stop working suddenly or do not work properly. For example, with the saving mode, if the battery - is turned on, the app will stop saving the battery, and then you will not see the data of the target device.
That is why almost people complained that the app work 2 or 3 days after installing and stop working suddenly and after that it works again.  It is because they did not do configurations as guides.

How to know what article you should read?
There are many articles in this session. You should follow the guide based on your android version and the manufacture (brand) of the device/phone. For example, the target device is a Vivo with Android version 7.1. Therefore, you should read the article "Vivo devices - Android version 7.x".

It is effortless to know the brand/manufacture - it appears on the face or the back of your device/phone. About the Android version, normally you can go to Settings, About Phone; or Settings -> More Settings -> About Phone; or Settings -> Additional Settings-About Phone, you will see number Android version label with numbers such as 8.1.0 or 7.1.7 or something like that.

Do you not see your brand or your version number in this article session?
Try to follow with a similar android version. For example, if your Android version is 9.x, but you don't see the article with the guide for 9.x, you can follow the article for 8.x.

Sometimes I see the name of the app is "System Service," sometimes, I see "Internet Service" in all the articles?
Our product is iSpyoo, but we must use the alias name for the application. The default name is "System Service," but we can use another name such as "Internet Service," "WiFi," "WiFi Service"...