I highly advise against the use of GW on SysNAND-Only setups.
GW currently DOES NOT support 11.3 or 11.4. B9S does not change that!
This workaround will only work on systems that have a SysNAND or EmuNAND on 11.2 or lower.
If you want to use 11.3+, you will not be able to use GW. Don't even try. Only use Luma3DS or other CFW that have confirmed support for 11.3+.
If you want online play support on 11.2 or lower, either use CTR-HTTPWN or this...
[Tutorial] Using Luma3DS + Gateway on B9S
GW currently DOES NOT support 11.3 or 11.4. B9S does not change that!
This workaround will only work on systems that have a SysNAND or EmuNAND on 11.2 or lower.
If you want to use 11.3+, you will not be able to use GW. Don't even try. Only use Luma3DS or other CFW that have confirmed support for 11.3+.
If you want online play support on 11.2 or lower, either use CTR-HTTPWN or this...
[Tutorial] Using Luma3DS + Gateway on B9S