Hacking RELEASE Firmware Version Inspector - get FW version from NAND dump

shchmue · Aug 18, 2018

Python and command line can be difficult for unfamiliar users, so if possible, I would recommend the wonderful NxNandManager tool, which among other things can list the firmware version of a NAND backup.

Have more than one NAND dump? Forgot to rename or label them?
Good news! Now you can quickly find out what firmware version a given backup contains.

Download:
Firmware Version Inspector - by shchmue on Github

Usage:
Install Python 3 and pycryptodome. In command prompt, type:

Code:

pip install pycryptodome

If this is an encrypted backup like Hekate makes (ie. you haven't dumped a decrypted System partition via HacDiskMount), you need to provide your console-specific BIS key 2. Dump this using biskeydump (https://gbatemp.net/threads/biskeyd...c-decryption-real-time-mounting-tools.502434/)

Then run from command line:

Code:

python FVI.py [-b=/path/to/biskeyfile] <dumpfile>

 biskeyfile must contain the following lines:
   BIS Key 2 (crypt): <32-digit hex key>
   BIS Key 2 (tweak): <32-digit hex key>
  omit -b if System partition already decrypted (eg. dumped with HacDiskMount)

 dumpfile must be NAND dump (eg. Hekate rawnand.bin dump) or System partition

Run examples:

I tested this on Windows 10 with Anaconda Python 3.6.5 and Ubuntu 16.04 LTS with Python 3.5.2. I hope you find it useful

Canna · Aug 18, 2018

This is a great handy little tool and hopefully not to complicated to those who have no idea how to use py
will be using this thanks

shchmue · Aug 18, 2018

Canna said:
This is a great handy little tool and hopefully not to complicated to those who have no idea how to use py
will be using this thanks

yeah I'll add a troubleshooting section if any common command line errors manifest like they did all over the old ChoiDujour thread

Canna · Aug 18, 2018

Chick i had to use choidujour today to help another member omFG it was a remote connection anyway and his windows is set to french so you can imagine the output of errors i got fml

bundat · Aug 18, 2018

Tested on Mac OSX 10.11.1, works great!

shchmue · Aug 18, 2018

bundat said:
Tested on Mac OSX 10.11.1, works great!

View attachment 140257 View attachment 140258 View attachment 140259 View attachment 140260

thanks so much for testing this! I'm glad to hear it works on Mac, the Ubuntu VM came in handy or else it'd probably be throwing errors. it certainly did when I first tried it

I'm curious what the story is on the one with 400 NCAs. did you use ChoiDujour more than once or something?

bundat · Aug 18, 2018

shchmue said:
I'm curious what the story is on the one with 400 NCAs. did you use ChoiDujour more than once or something?

No, never used ChoiDujour. This 5.1 update was done in OFW on an unhacked 4.1 Switch (well... unhacked except for running Hekate to get the 4.1 backup). As soon as the 5.1 update was completed, I stuck in an RCM jig on reboot to prevent burning fuses, and made the 5.1 backup.

So this is just basically an unhacked 5.1 NAND dump.

shchmue · Aug 18, 2018

bundat said:
No, never used ChoiDujour. This 5.1 update was done in OFW on an unhacked 4.1 Switch (well... unhacked except for running Hekate to get the 4.1 backup). As soon as the 5.1 update was completed, I stuck in an RCM jig on reboot to prevent burning fuses, and made the 5.1 backup.

So this is just basically an unhacked 5.1 NAND dump.

oh! I wonder whether doing that kept it from deleting the old files or something. or maybe CD deletes them but a typical update doesn't at all.

shchmue · Aug 21, 2018

Upon request, I added a feature that determines most recent boot time as of the time the backup was made.

mario6714 · Sep 24, 2018

C:\1>python FVI.py -b=/c/1/biskeyfile.txt /c/1/system
File "FVI.py", line 7
<!DOCTYPE html>
^
SyntaxError: invalid syntax

--------------------- MERGED ---------------------------

Windows 10

shchmue · Sep 25, 2018

mario6714 said:
C:\1>python FVI.py -b=/c/1/biskeyfile.txt /c/1/system
File "FVI.py", line 7
<!DOCTYPE html>
^
SyntaxError: invalid syntax

--------------------- MERGED ---------------------------

Windows 10

you got the whole HTML page from GitHub. try saving from the raw link https://raw.githubusercontent.com/shchmue/FVI/master/FVI.py

you also might need to use Windows directory syntax, but I'm not totally sure, ie c:\1\system

Rabbid4240 · Sep 25, 2018

or just go to settings under system.

Taorn · Sep 25, 2018

SexySpai said:
or just go to settings under system.

How exactly are you going to do this with a nand backup file?

Rabbid4240 · Sep 25, 2018

Taorn said:
How exactly are you going to do this with a nand backup file?

No. Go to settings on your switch.

Ashura66 · Sep 25, 2018

SexySpai said:
No. Go to settings on your switch.

That's NOT the point of this. The point of this is to see the FW version of your NAND BACKUP, not the NAND you're currently using

Rabbid4240 · Sep 25, 2018

Ashura66 said:
That's NOT the point of this. The point of this is to see the FW version of your NAND BACKUP, not the NAND you're currently using

oh ok.

Taorn · Sep 25, 2018

SexySpai said:
No. Go to settings on your switch.

Read the description.

Have more than one NAND dump? Forgot to rename or label them?
Good news! Now you can quickly find out what firmware version a given backup contains.

xlim3y · Nov 20, 2018

finally got this to run (my syntax understanding is awful), but now I get the error /contents/ not found.

This is a dump from I believe 5.0, but I wanted to check before I restore.

Any thoughts?

Thanks in advance for the help.

comput3rus3r · Nov 20, 2018

have nand backups for multiple switches? how do I know which nand backup belongs to what switch?

Draxzelex · Nov 20, 2018

comput3rus3r said:
have nand backups for multiple switches? how do I know which nand backup belongs to what switch?

I suppose you can try mounting them via hackdiskmount then seeing which biskeys decrypt them as long as you know which biskeys belong to which Switch.

Hacking RELEASE Firmware Version Inspector - get FW version from NAND dump

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