You don't need a Quake 3 Arena No CD Patch in 2025. You have ioquake3, Steam, and GOG. But that misses the point.
To play on Android, install a source port app, then copy the folder to the device. Quake 3 Arena No Cd Patch
The most important thing to know is that if you update the game correctly. Id Software eventually removed the CD check requirement themselves: You don't need a Quake 3 Arena No CD Patch in 2025