Dark_Alex’s PSAR Dumper mod for PSP has been updated to support signature key generation. This means that a 2.81 Devhook will be coming very soon

Download PSAR Dumper with signature key generation

Read more: Firmware 2.8 Decrypted, Devhook 0.52 Released, 3.03 OE-B Released, PSARDumper for 3.03 Released, Booster releases Devhook v0.51.0100