Have you checked the list at https://3ds.hacks.guide/ntrboot to see if your DSTT has a compatable flash chip to use ntrboot properlyWhen i'm trying to flash my DSTT with ds_ntrboot_flasher.nds it always stays stuck at 0% erasing blocks and the .firm stays stuck at 99% reading
According to that, not all DSTT carts are supported. Yours might just be one of the unsupported ones.I don't get it