Copy `/atmosphere/config_templates/system_settings.ini` to `/atmosphere/config/system_settings.ini`
Then open atmosphere/config/system_settings.ini and add this to it:
[boot]
force_maintenance = u8!0x1
Think you might be experiencing the blackscreen issue. Press power and hold for like 10 seconds then try to power it on again
1774212686
Your sysnand is most likely bricked. Do what said above and you should be able to get into hetake. Emunand...