Seems Nintendo have released a firmware that blocks hacking, heres the info :
This is a speculative post, so bear with me. After analyzing the Switch firmware 5.0.0 changes and reading SciresM's tweets, it looks like Nintendo is adding support for a new hardware revision of the Tegra CPU/GPU which is a SOC (System On Chip) dubbed 'Mariko'. The new firmware also includes a RomFS update with what seems like new crypto and support for the upcoming 'Mariko' chipset. My guess is that Nintendo is doing what Sony did with PS3 SuperSlim (déj* vu lv0.2), they are adding a new bootrom which plugs the current vulnerability and locking the lowest firmware to 5.0.0 for the new hardware in silicon. I agree with SciresM who wrote: 'Might be a good time to pick up a console with a vulnerable bootrom