Your ZTE N2 Nubia has a microSD (TF card) memory card slot. If your personal computer has a slot for that card type (Most laptops are so-equipped), you should be able to save a music file
The ZTE N2 Nubia is a smartphone. Most smartphones will let you save any song found online by tapping and holding your finger on it, then selecting 'save.' Once a music file is saved to your media library, tap-and-hold it and select 'assign' from the drop-down menu.
The Nubia N2 is equipped with Bluetooth version 4.0 (BLE), which lets you connect to your computer wirelessly. Just pair phone and computer together and drag and drop your music files from your computer to your ZTE Nubia N2.
If all of the above tricks do not work with your ZTE Nubia N2 or if you prefer not to buy new accessories, you can still use one of the numerous free '3G Uploader' services available online. A search on Katapulco should retrieve plenty of them. 3G uploaders are simple: Save your own music on their web site and they will provide a temporary URL. Navigating to that URL with your ZTE Nubia N2's browser should download the free ringtone.
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