That's easy.
I've been playing on a 3DS XL (german EU version) on FW9.2.
My genuine Gateway was working like a charm with Emunand 9.2.
I've bought a DSTwo+ to only have one cartridge with me if I'm on a business trip or something with long traveling.
So I've setup the DSTwo Card with an separate SD-Card for separate DSTwo+ EmuNAND and the DSTwo Launcher.dat.
The whole start an setup thing takes 3 days until everything was what I wanted.
I've started DS2emunand several times, then I've started my old sky3DS (only to see if it still works, want to sell it).
After that I've started the genuine Gateway Emunand (with genuine GW card). I got a short Dragon logo and then a double white screen.
After 10 Minutes the console shut down.
That's the moment I got the vluescreen on every startup
Code:
Bootrom:8046
ErrCode: 00F800EF
FFFFFFFF FFFFFFFF
00000008 00000000
Regards
Rashka