Tutorial How to decrypt an encrypted .dll file with GDB gcore (Root only)

Hi, i tried with 2 phones, (i'm trying to fix my old xperia arc s to try with it too) but i'm always getting the error saying: error: Android 5.0 and later only support position-independent executables (-fPIE).

I tried with a Mi8 Explorer running Android 10 and based on arm64 and a OnePlus One with Android 9 based on arm but seems the method is outdated or i'm doing something wrong.

I gave both gdb and gdbserver 777 permissions but i reached a deadend and with gameguardian the game never starts because is detecting gg :/

Is there any emulator that can support this method?

Thanks :3