Error/Potential brick after downgrade from 11.0.0 to 10.2.0

[xdCallMeCooper]

After downgrading from 11.0 to 10.2, this error code pops up on my switch after booting into atmosphere -

Error Code: 2002-2634 (0x149402)
Program: 010000000000001F
Firmware: 10.2.0 (Atmosphère 0.15.0-master-1c71d12d)

An error has occurred.

It's been doing this for a day now and I fear that my Switch is completely bricked. When I try to turn it on normally without booting into atmosphere, all that appears is just a black screen. It's stuck there and I'm worried.

[masagrator]

What tool you have used to downgrade FW?

[HookedBehemoth]

Eject your gamecard and try again.

You updated the gamecard controller on 11.0.0 and FS now fails to handle it.

[xdCallMeCooper]

What tool you have used to downgrade FW?

Daybreak.

[xdCallMeCooper]

Eject your gamecard and try again.

You updated the gamecard controller on 11.0.0 and FS now fails to handle it.

Gamecard?

[HookedBehemoth]

[xdCallMeCooper]

I don't even have a gamecard in my switch...

[SciresM]

Yes you do.

In any event, set nogc=1 in BCT.ini, or whatever the hekate equivalent is.