Visit the Downloads - Umineko Project page to get the script and resources needed for the mobile version.
While a "traditional" English patch for the original Japanese PSP ISOs remains elusive, fans have two major modern alternatives that achieve the same goal: Umineko No Naku Koro Ni Psp English Patch
Every line is voiced by a high-profile Japanese cast. Visit the Downloads - Umineko Project page to
If your heart is set on the PSP-style experience, you can use these resources to get started: Umineko No Naku Koro Ni Psp English Patch