Hi,
I have used SafeSysUpdate threw Menuhax on my New 3DS XL 9.9.0-26E.
All Tests before where OK. During the downgrade an Error occured.
I had to power off te 3DS. Reboot of the 3DS ends in a black screen. So I took off the SD Card.
The 3DS starts, but I can't open Settings or the Browser. So...