From a 9.2 O3DS downgrade pack of the same region. Check which of these 4 files you're missing:
0004001B00010802.cia
0004009B00010402.cia
0004013000001A02.cia
0004013000001B02.cia
0004001B00010802.cia
0004009B00010402.cia
0004013000001A02.cia
0004013000001B02.cia