WiiMart-Patcher/docs/patch_ec_title_check.md

Patch: Negate EC Title Check

Motivation

A check on the title type is present, preventing installation of 00010008 (hidden) titles. We would like to do so.

Explanation

Via symbols within the main ARC, we are able to see function names.

Prior to downloading a title in three scenarios - normal downloading, gifting, or purchasing - EC runs a function called ec::allowDownloadByApp.

Within this, four conditions are checked:

• Is the channel a downloadable title/NAND title? (00010001)
• Is the channel a game channel? This checks two types:
  • 00010000, typically used for discs
  • 00010004.
• Is the channel a "service title"? (00010100)
  • Name taken from ec::isServiceTitle.

If any of these are true, installation of the title is permitted. Otherwise, installation is forbidden.

Execution

This behavior is not ideal. ec::allowDownloadByApp is patched to immediately return 1, or true.

In the future, ec::isManagedTitle and ec::isManagedTicket may wish to be patched as well due to similar reasons.