I got it! I have psx games working! I think I had two different issues:
First of all, You can choose a system directory editing this file:
I choosed this one:
And I put here my pcsx1001.bin file. Im trying to do the same with neogeo.bin for MAME…
Next I saw that the error (The screen with the errors is ultra fast, but making a video with the phone will work) was that my libreto.so must be renamed to pcsx_rearmed_libreto.so, and thats all!!
I hope this will help someone.