Because you are using a file, you may run into specific bugs.
High-end Android phones can emulate the official PlayStation 2 version of RE4 using the AetherSX2 emulator .
Yes, the graphics are worse than the 2023 Remake. Yes, the "tank controls" feel clunky. But for a 30-minute bus ride or a flight with no Wi-Fi, having a 400MB version of one of the greatest games ever made on your phone is unbeatable.
Enjoy playing Resident Evil 4 on your device!