Okay so I was on OFW 1.0.0 only showing 1 fuse blown.. perfectly fine.
Installed SXOS 2.5.2 but every time I booted to CFW.. it would make it to the dashboard and crash with an error 2254-0006. So i only assumed some issue with 1.0.0 and SXOS 2.5.2 must be amuck. So rebooted back into SXOS...
So to quote the OP guide.
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Q: I've never run firmware 4.0.0 or higher on my switch, so my gamecard controller firmware is still not updated. How do i make sure my gamecard controller works after i downgrade back to < 4.0.0 ?
A: When flashing the firmware image for any 4.0.0 or later firmware...