@AlbertoSONIC @d0k3 Eh i have get another method to do so but I haven't tested this. -- since my network stucks.
Original Link:
tieba.baidu.com/p/4111242400 WARNING: CHINESE
It is said to delete the following files from the NAND:
In dbs: tmp_i.db, tmp_t.db, import.db.
In title: All those having a extension as "ctx". And remove those Newest APP and TMD and CMD if you know this title update has been fetched.
In tmp: title.tik
Actually this can be done in programatic way. However you would have to scan the folders, and also check the file dates.
Well since TMD have what contents related to it, you can make it deleted more safely. It is recommended to force user to backup the target NAND first, if using this.