Dark AleX has released the latest custom firmware for the PlayStation Portable (PSP) with custom firmware 3.90 M33-3 – with improved NO-UMD compatibility for PSP. This 3.90 M33-3 firmware release enhances the compatibility and performance of the M33’s NO-UMD driver. This firmware release also has compatibility increased to support games like Coded Arms, Patapon, Harvest Moon Innocent Life and probably others affected by same errors.