Samsung SCH-S960RWBTFN - Manual (Page 348)

Enable Downloading for Web Applications
Important! Before you can download a web application you must
insert an SD into the phone and enable the Unknown
sources feature (enables downloading).
1. From the Home screen, press and then tap Settings ➔
Security ➔ Unknown sources check box.
2. Tap OK to allow install of non-Play Store applications.
Tap again to remove the check mark and disable the
installation of non-Play Store applications.
Warning! Not all web applications are safe to download. In order to
protect your phone and data, use the Play Store to install
web applications. For more information, refer to
“Downloading a New Google Application” on page 304.
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