It avoids connecting to public, unencrypted hotspots.
This number was specific to Android 4.1–4.3 Jelly Bean, where it corresponded to the setMobileDataEnabled function within the connectivity service. android reverse tethering 33 zip do work
In standard tethering, your phone shares its mobile data connection with your computer. Reverse tethering is exactly the opposite: it allows your Android device to use the internet connection of the computer it's plugged into. It avoids connecting to public, unencrypted hotspots
Comprehensive Guide: Does the Android Reverse Tethering 3.3 Zip Still Work? It avoids connecting to public
This is the recommended, open-source method. It uses adb to provide reverse tethering.