BLES01402 saves often have a mismatched PARAM.SFO checksum. Bruteforce rewrites it correctly.
Many users report that after roughly 2–3 hours of play, the framerate drops to single digits, followed by a hard freeze. The error code 80010017 or 80010514 often appears. In RPCS3, the emulator log fills with F PPU[0x1000000] Thread (MainThread) [0x005a3e0c] MEM: Access violation – a signature of BLES01402. Dark Souls BLES01402 FIX
Before applying a , verify you have the right problem: BLES01402 saves often have a mismatched PARAM
For players using original hardware or CFW (Custom Firmware): the framerate drops to single digits