Hacking Will this guide help for every softbrick Switch to restore to stock?

The Real Jdbye · Oct 17, 2021

switchModBrick said:
Thank you,
are the PikaFix Pack files that I generate by my one or can I download them?

Should I use my old prod.keys backup or these I made yesterday because they are a bit different, is this normal?

You download them.
The one you made yesterday might be missing some stuff since the NAND is wiped. Use the one that has most of the master_key_** keys in it (it's a text file, you can open it in Notepad) as only those keys are needed.

switchModBrick said:
"11.Open key.dat (D) in step 4(c) by text editor (or rename to key.txt first if you want to)"

I can't find the file key.dat on the Switch SD-Card.

Is it not in the PikaFix Pack?
Edit: It looks like key.dat is not important, you can just use the BIS keys from keys.txt/prod.keys instead.

switchModBrick · Oct 17, 2021

The Real Jdbye said:
You download them.
The one you made yesterday might be missing some stuff since the NAND is wiped. Use the one that has most of the master_key_** keys in it (it's a text file, you can open it in Notepad) as only those keys are needed.

Is it not in the PikaFix Pack?
Edit: It looks like key.dat is not important, you can just use the BIS keys from keys.txt/prod.keys instead.

There is nothing of this files in the PikaFixPack I downloaded.

switchModBrick · Oct 17, 2021

If I open my Switch as PhysicalDrive in HacDiskMount I get in hekate->usbTools->eMmcRawGpp the Error: “Error SDMMC Read!”.
HacDiskMount logs it “can’t read partition table from \\?\PhysicalDrive2”.

Edit: Sometimes it don't show me this error then to device don't get noticed from HacDiskMount.
What can I do?

The Real Jdbye · Oct 17, 2021

switchModBrick said:
If I open my Switch as PhysicalDrive in HacDiskMount I get in hekate->usbTools->eMmcRawGpp the Error: “Error SDMMC Read!”.
HacDiskMount logs it “can’t read partition table from \\?\PhysicalDrive2”.

Edit: Sometimes it don't show me this error then to device don't get noticed from HacDiskMount.
What can I do?

I think you need to flash a NAND backup (any NAND backup, even if it's not from your Switch) so that the NAND has the proper layout.

switchModBrick · Oct 17, 2021

The Real Jdbye said:
I think you need to flash a NAND backup (any NAND backup, even if it's not from your Switch) so that the NAND has the proper layout.

Do I have somering to consider or can I download a random Nand?

laramie · Oct 17, 2021

switchModBrick said:
Do I have somering to consider or can I download a random Nand?

yeah I'd look around for "NX-5.1.0_universal_exfat" I can't link it because of legal reasons but you can use it to fix your needing a random nand.

switchModBrick · Oct 21, 2021

switchModBrick said:
Do I have somering to consider or can I download a random Nand?

laramie said:
yeah I'd look around for "NX-5.1.0_universal_exfat" I can't link it because of legal reasons but you can use it to fix your needing a random nand.

I can‘t find a Nand like this.
I downloaded a 29.12 GB file called donor_rawnand.bin which also contains prod.keys in the folder. If I open the file with its prod.keys in NxNandManager it show me FW ver: 12.0.2(exFat).

Because I have a a FAT32 formatted SD-Card I splitted the rawnand.bin file into multiple parts(rawnand.bin.00,_01,02,etc.).

At the Beginn of the restore process I got the following Warnig „size of sd card splitt backup does not match, eMMC selected part size!“(picture 1).
After continue I got an Fatal Error „sd & eMMC data do Not match!“(picture2).

Is this may because of that I didn’t use Nand of FW 5.1.0 or because I have FAT32?

Adran_Marit · Oct 23, 2021

switchModBrick said:
I can‘t find a Nand like this.
I downloaded a 29.12 GB file called donor_rawnand.bin which also contains prod.keys in the folder. If I open the file with its prod.keys in NxNandManager it show me FW ver: 12.0.2(exFat).

Because I have a a FAT32 formatted SD-Card I splitted the rawnand.bin file into multiple parts(rawnand.bin.00,_01,02,etc.).

At the Beginn of the restore process I got the following Warnig „size of sd card splitt backup does not match, eMMC selected part size!“(picture 1).
After continue I got an Fatal Error „sd & eMMC data do Not match!“(picture2).

Is this may because of that I didn’t use Nand of FW 5.1.0 or because I have FAT32?

Use Hekate, mount your eMMC Raw and enable write, use NXNandManager, then restore the whole donor bin file

The Real Jdbye · Oct 23, 2021

switchModBrick said:
I can‘t find a Nand like this.
I downloaded a 29.12 GB file called donor_rawnand.bin which also contains prod.keys in the folder. If I open the file with its prod.keys in NxNandManager it show me FW ver: 12.0.2(exFat).

Because I have a a FAT32 formatted SD-Card I splitted the rawnand.bin file into multiple parts(rawnand.bin.00,_01,02,etc.).

At the Beginn of the restore process I got the following Warnig „size of sd card splitt backup does not match, eMMC selected part size!“(picture 1).
After continue I got an Fatal Error „sd & eMMC data do Not match!“(picture2).

Is this may because of that I didn’t use Nand of FW 5.1.0 or because I have FAT32?

Rawnand is not actually the full NAND. Full NAND IIRC is boot0+boot1+rawnand. Not sure how to flash a full backup like that though, maybe doable with HacDiskMount. This is a bit out of my knowledge...

Draxzelex · Oct 30, 2021

switchModBrick said:
I can‘t find a Nand like this.
I downloaded a 29.12 GB file called donor_rawnand.bin which also contains prod.keys in the folder. If I open the file with its prod.keys in NxNandManager it show me FW ver: 12.0.2(exFat).

Because I have a a FAT32 formatted SD-Card I splitted the rawnand.bin file into multiple parts(rawnand.bin.00,_01,02,etc.).

At the Beginn of the restore process I got the following Warnig „size of sd card splitt backup does not match, eMMC selected part size!“(picture 1).
After continue I got an Fatal Error „sd & eMMC data do Not match!“(picture2).

Is this may because of that I didn’t use Nand of FW 5.1.0 or because I have FAT32?

Try putting it on an exFAT SD card.

switchModBrick · Nov 13, 2021

Draxzelex said:
Try putting it on an exFAT SD card.

I think the problem is not because i use a fat32-card. I relized that I made a mistake naming the files and fixed it now. Now, the Hekate-Payload notice that the backup is splitted(I fixed the size not match error).
But I get again the fatal-error: „sd & eMMC data do Not match! Vertification failed“.

Adran_Marit · Nov 13, 2021

switchModBrick said:
I think the problem is not because i use a fat32-card. I relized that I made a mistake naming the files and fixed it now. Now, the Hekate-Payload notice that the backup is splitted(I fixed the size not match error).
But I get again the fatal-error: „sd & eMMC data do Not match! Vertification failed“.

Did you follow the guide?

More or less you need to use a donor to get either prodinfo OR use hacdiscmount to get extract the partitions and resign them to your own nand

switchModBrick · Nov 13, 2021

Adran_Marit said:
Did you follow the guide?

More or less you need to use a donor to get either prodinfo OR use hacdiscmount to get extract the partitions and resign them to your own nand

Which guide do you mean?

Adran_Marit · Nov 13, 2021

switchModBrick said:
Which guide do you mean?

Any of the unbricking guides?

You can't just restore a backup to your nand without resigning it with your keys first

switchModBrick · Nov 14, 2021

Adran_Marit said:
Any of the unbricking guides?

You can't just restore a backup to your nand without resigning it with your keys first

I don’t followed a guide.
Do you knew how I can resign the donorrawnand with my keys or any guides?

Adran_Marit · Nov 14, 2021

switchModBrick said:
I don’t followed a guide.
Do you knew how I can resign the donorrawnand with my keys or any guides?

read my pikafix guide, hackdiskmount method.

switchModBrick · Nov 14, 2021

Adran_Marit said:
read my pikafix guide, hackdiskmount method.

Thanks,
Do you mean this: https://gbatemp.net/threads/switch-unbricking-guide-prodinfo-fix-pikafix.578026/?
Is this for restoring the Partitions, because it seems I have deleted my systems partitions and I think I have to fix this partition system first?
It seems for me that this guide require an existing partition system and fix this.
Can you maybe explain what this does?
Which method of the 3 should I follow?

Adran_Marit · Nov 14, 2021

switchModBrick said:
Thanks,
Do you mean this: https://gbatemp.net/threads/switch-unbricking-guide-prodinfo-fix-pikafix.578026/?
Is this for restoring the Partitions, because it seems I have deleted my systems partitions and I think I have to fix this partition system first?
It seems for me that this guide require an existing partition system and fix this.
Can you maybe explain what this does?
Which method of the 3 should I follow?

If your partition table is missing you need to fix that first, gptrestore might do the trick but if that fails you need to manually recreate them in linux

valelisa102 · Nov 30, 2021

I no longer work the PRODINFO backup I deleted it by mistake now that I do

Draxzelex · Dec 12, 2021

valelisa102 said:
I no longer work the PRODINFO backup I deleted it by mistake now that I do

Follow the guide linked above.

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