The short answer is that was never officially released for the PSP (PlayStation Portable), and any website offering a direct "PSP game download" for this title is likely a scam or contains malware.
: Sites that ask you to download three other apps to "verify" you are human are almost always scams. Uncharted 4 Psp Game Download For Android
If you want actual Uncharted 4 on your Android screen, you do not download it. You stream it. The short answer is that was never officially
For a look at how users attempt to run the game on mobile through advanced emulation, watch this gameplay demonstration: watch this gameplay demonstration: