Your device comes with the stock Android operating system given by Google and Samsung that will be replaced by installing a Samsung GT-I9060 Custom Rom on your Samsung Galaxy Grand Neo. Installing a custom ROM on the Grand Neo device has many reasons.
Reason Why Installing Samsung GT-I9060 Custom Rom
When you think your device runs slow, updating the operating system by installing a new ROM on any Android is the most popular reason. If your device is running Android Lollipop official firmware, you can install an Android Marshmallow custom ROM for your device. Using the basic Android operating system the way Google intended by replacing the manufacturers theme is another reason why you want to install a custom ROM. The operating system that comes with your Samsung devices has special Samsung apps and features which are different to the basic them of the operating system from Google. You can remove the Samsung theme completely by installing a custom ROM.
Before you can flash or install the custom ROM, you may need to root your Samsung device and install a custom recovery on it. If in the future you want to remove the Samsung GT-I9060 Custom Rom and revert back to the stock ROM, by unrooting your Samsung Galaxy Grand Neo. However, the Google stock apps are not available on the custom ROMs for the Grand Neo so if you want the apps working you need to install the Google Gapps file.
CyanogenMod is made by Cyanogen, the best custom ROMs developer right now and it has developed the Android to the latest Marshmallow. Cyanogen wants to create a new ROM that comes with better performance and is more stable than the stock ROM of the devices that comes out from the box.
If you want to install apps from the Google Play Store or Amazon App Store that require you to root your device, there is no need to root your device anymore as there is now a pre-rooted custom ROM for your Samsung devices called the GENNXT. This pre-rooted ROM allows you to immediately install the apps that require root access. It comes with no bloatware at all and you can keep your device free of malware with the addition of Superuser provided by ClockworkMod.
Marsmallow ROM File
This Samsung GT-I9060 Custom Rom file is readily available to download so you can immediately enjoy the latest Android version on your Galaxy Grand Neo device.