SD card causing black screen...

That's not standard or added. That's hardware related i thinks.

 

Ahhhh...

Definitely some memory corruption going on there.

That unit will fail completely very shortly.

Will probably be able to launch payloads like Hekate no problem.

However, come to memloader, the latest uses minerva training... Guessing that is an MTC_load error.

Someone earlier said RAM damage. I`m inclined to agree in that you seem to have defective memory somewhere.

A reflow of the Ram chips may help. But it probably won`t.

If under warranty, send it back to Nintendo. Guessing your TSEC comes up as FFFFFFFF?

Falcon cannot be accessed(google Falcon Tegra if you need a "bring you up to speed"), more than likely due to faulty RAM.

The solution is:

Complain to Nintendo
If they sort it, your new unit will be ipatched. Sell it. Buy new unpatched version.
If they say "jog on", strip for parts, but make sure you have BIS keys. Decrypt prodinfo... Strip the client cert out of it. Use in a "banned switch" maybe?

If Falcon cannot be used, you could try to replace the RAM. But there is a chance something in the Tegra has failed too...

No way back from this unfortunately.

So, I`m going on and on here...

Nutshell:

RAM / Falcon fault in Tegra.
Take a chance on some new Ram, but don`t hold your breath.

That Matrix screen makes me think it BTW.

 

see if you can run emmc from memloader and backup on pc with nxnandmanager,

 

Ahh sorry to hear that, i think matty maybe right here hardware failure and that being ram... Try what matty suggested and keep us posted.