Cheating with inventory quantities can sometimes corrupt your storage data. Always keep a backup of your save file before applying these codes.
On PPSSPP, go to the PSP/Cheats folder in your memory stick directory. god eater burst cheat all materials
Even with infinite materials, you still need to reach the appropriate Story Rank to unlock certain crafting recipes in the Terminal. Where can I find materials? - Gods Eater Burst Q&A for PSP god eater burst cheat all materials