Do DSiWare (including DS Wi-Fi settings) still work?
DS WI-FI Settings: Hang on Black Screen
Boot DS Game Cart: Hang on Black Screen
Boot DSi Flash Cart (AceKard2i): "An Error has Occurred"
Selecting Nintendo DS on DS Download Play: Hang on Black Screen
Loading DSiWare (Zelda: Four Swords Aniversery, downloaded from FreeShop): Hang on Black Screen
System Settings > Data Management > DSiWare: Able to Access, Move, Delete, ETC.
System Settings >Other Settings > Profile > Nintendo DS Profile: Able to access
Hardware: OLD 3DS (non-XL)
Luma CFW: v5.5
ARM9LOADERHAX SysNAND 11.0.0-33U
FBI Cia Installer: v2.3.1
TITLE ID: 0004013800000102 v8817 size: 1.72 MiB
TITLE ID: 0004013800000202 v3665 size: 960.00 KiB
NINTENDO DSi (Title ID: 0004800543283841 v2048) size:1.33 MiB
DS Download Play (Title ID: 00048005484E4441 v1024) size: 434.80 KiB
TITLE ID: 0004800F484E4841 v11264
TITLE ID: 0004800F484E4C41 v0
I have tried:
TinyFormat
System Format
Restore NAND from Backup (ARM9LOADERHAX_SysNAND)
Install TWL_FIRM for OLD 3DS linked on the LUMA Wiki:
https://github.com/AuroraWright/Luma3DS/wiki/Other-features-and-notes
Retail DS Game tested on: Pokemon Black (U) [TWL P IRBO USA]