After 2 bricks on my emunand with the ab patchs and gateway emunand i decided to give up Gateway.
The bricks happened without any reasons, maybe the message from Nintendo that say to update the firmware while i was on lasted firmware of the 3DS...
Hello, i have A New 3ds with 1.17 sysnand and emunand updated.
I installed the 123ab's patch on the emunand with gm9.
Synand 1.17 on custom fw luma: boot OK
Emunand 1.17 on gateway fw luma 3DS: boot OK
Emunand 1.17 on custom fw luma: KO black...