This might be true for a very select few devices. Before usb-c I have never seen something else besides micro USB on an android device (besides the micro USB 3.0 connection, but you could put a normal micro USB cable in those)
You came late to the modding scene then. I bought mine secondhand so I had a PSP with firmware 1.52 that could be modded. Since the newer 2.0 firmware was still unhackable. (soon after you could mod version 2.0 with a gta savegame hack)
So many good memories. I really loved the PSP modding scene.
I just want Smarttube Next for mobile.