This guide will show you how to get free wifi tethering/hotspot on your Samsung Galaxy S3 that is running on Jelly Bean and a TouchWiz based ROM.
You MUST be rooted - Click here to root your Galaxy S3.
If your Galaxy S3 is running on Ice Cream Sandwich, use this guide here.
Download the WiFi Tether APK here
1. Download the apk directly to your phone.
2. Open any file manager app and locate the apk. By default it will be located under "Downloads" folder.
3. Tap on the apk and install it. If you get a security issue going into Settings > Security and check mark "Unknown Source".
4. Go into the app > Settings > Device-Profile and then select Galaxy S3.
5. Turn on WiFi tether and start enjoying!
Credits - XDA
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