Hacking Monster Hunter 4 - Black Screen Problem "An Error has occurred... then please turn off"

[heroarc8]

Hello,

ROM: 3DZ
Flashcart: Gateway 3.0.4
SysNand: 9.2U
EmuNand: 9.5
MicroSD (Gateway): 16GB (Class 4)
Micro SD with SD Adapter (3DS): 16GB (Class 10)

I dont know how to get past this black screen after the tutorial in mh4u? Any suggestions how to fix this?
The black screen forces me turn off the 3ds and im stuck! please help

 

[liomajor]

I had this problem too, but this time it was not a problem from my microSD, it was on the SD Card inside 3DS.

Check both of your SD Cards for fragmentation with gw3ds.exe https://gbatemp.net/threads/gateway-3ds-microsd-tool.369165/

Keep at least 2GB free space on internal SD Card.

 

[heroarc8]

im aware of that. but the thing is i have atleast 10gb free on my internal sd card.

 

[liomajor]

The only other options are, microSD is defective or your 3dz is broken. Tried .cia mh4u?

 

[heroarc8]

i dont think the microsd is defective. kingston original but class 4. never tried using cia with mh4u.