While it sounds like the title of a tech support thread, actually refers to a specific breakthrough in the PlayStation Vita (PS Vita) homebrew and hacking community.
When using modoru, the file must be placed in ux0:app/MODORU000/PSP2UPDAT.PUP . Fixing "File is Corrupted" with Modoru (Downgrader) psp2updatpup fixed
Here is a blog post designed to help users fix common issues related to this file. Fixed: Resolving PSP2UPDAT.PUP Issues on PS Vita While it sounds like the title of a
Locate your QCMA updates folder (usually found in Documents/PS Vita/SYSTEM/ ). Drop the psp2updat.pup file into that folder. Step 3: Refresh QCMA psp2updatpup fixed