PS3DumpChecker/changelog at master · Swizzy/PS3DumpChecker · GitHub
Steps to downgrade PS3 Phat help | PSXHAX - PSXHACKS
XOR__ on Twitter: "@chadbell09 @AbkarinoMHM No, thats False its because of the Metldr2 that was introduced in the 3k/4ks before there was just Metldr with the key from 3.55 in them" /
Validating flash dumps - PS3 Developer wiki
CECH-2001A PS3 slim custom firmware installation with Teensy - William Quade