Hacking How to Check if my eMMC-Chip is functioning?

[switchModBrick]

Hi, because I have issues flashing Nand-Backups(Donor and one emuMMC-Backup) I think my eMMC-Chip is may be bricked. Also creating Backups is Not able. But flashing and creating Bootfiles work as usal.
Is there a possibility to check the eMMC? May be with a TegraRCM-Bootloader or Linux?

Can someone explain how the partiton Map of this Chip is build?
I ask me if Prodkeys and Prodinfo comes from the Chip or Processor directly?
Which Data comes from the Chip, is there another Storage-Component I never heard before?

Thank you

 

[thesjaakspoiler]

I ask me if Prodkeys and Prodinfo comes from the Chip or Processor directly?

It's a bit more complicated.
The prodkeys are calculated based on some information of the Tegra and stored on the eMMC partition.
As far as I know, nobody hasn't figured out how to prepare a fresh eMMC with only the Tegra.
There was only some workaround with a donor Switch.
https://gbatemp.net/threads/guide-nand-rebuilding-for-no-backup-broken-emmc.593995/

There are no secret storage chips like the PS4 has.

 

[thesjaakspoiler]

About the partitions : this site has some screenshots that shows all partitions on the eMMC :
https://www.tronicsfixforum.com/t/switch-hard-mod-nand-dump-with-low-voltage-emmc-adapter/521

 

[The Real Jdbye]

It's a bit more complicated.
The prodkeys are calculated based on some information of the Tegra and stored on the eMMC partition.
As far as I know, nobody hasn't figured out how to prepare a fresh eMMC with only the Tegra.
There was only some workaround with a donor Switch.
https://gbatemp.net/threads/guide-nand-rebuilding-for-no-backup-broken-emmc.593995/

There are no secret storage chips like the PS4 has.

That very guide says you can use the Pikafix Pack in place of a donor Switch.

 

[switchModBrick]

About the partitions : this site has some screenshots that shows all partitions on the eMMC :
https://www.tronicsfixforum.com/t/switch-hard-mod-nand-dump-with-low-voltage-emmc-adapter/521

Thank you very much, do you know of its able to run the Switch only by emuNand?
Because the only Backup I have is a EmuNand and I get, if I try to restore, the Error: „Failed to init eMMc.

 

[switchModBrick]

Or is there a way to fix the Error:“failed to init eMMC“?
The crazy thing is that often restoring my BOOT-Files work but restoring the RAWNAND prints the Error:“failed to init eMMC“.