Hacking [FatFS] Error: NOFAT Failed to mount SD card (FATFS Error 13). Make sure that a FAT partition exists

Kafluke · Jan 28, 2019

rbakaou said:
Hi, i'm back to get you updated.
As CTCaer said I opened the switch and disconencted and connected properly the reader and now it works like a charm. every time. Well done to CTCaer for figuring it out. So even normale non hacked switch may have this issue and you won't even know about it cause OFW won't notify you.
Maybe even some of my installation issues could be related to this like tinfoil wifi installation.

It's a very temperamental component. Definitely a design flaw. I had a throwaway switch "banned" among other things. I wanted to experiment with installing a modchip (trinket). I got the modchip installed but eventually the sd connector literally lifted off the motherboard. Not the module itself but the connector on the mainbaord broke off. They are very sensitive and prone to breaking off if you're not careful.

Artur95 · May 8, 2019

CTCaer said:
Because OFW supports 1bit data bus.
I don't.

And this will stay like that, because it's better to fix the problem than having 1/4 of max speed.
And also to identify this issue.

Hello CTCaer, i lost one of my sd card reader socket pins. do you think hekate will work if i change in hekates code "SDMMC_BUS_WIDTH_4" to "SDMMC_BUS_WIDTH_1"? i rather have 1/4 speed and being able to use homebrew than nothing.

designgears · May 8, 2019

Artur95 said:
Hello CTCaer, i lost one of my sd card reader socket pins. do you think hekate will work if i change in hekates code "SDMMC_BUS_WIDTH_4" to "SDMMC_BUS_WIDTH_1"? i rather have 1/4 speed and being able to use homebrew than nothing.

Necro thread btw...

Probably depends on which pin you screwed up. Better off getting an sd slot replacement off ebay/amazon. Super simple to replace.

Artur95 · May 8, 2019

designgears said:
Necro thread btw...

Probably depends on which pin you screwed up. Better off getting an sd slot replacement off ebay/amazon. Super simple to replace.

it got fucked up on the motherboard of the switch. extremly hard to fix it permantly

designgears · May 8, 2019

Artur95 said:
it got fucked up on the motherboard of the switch. extremly hard to fix it permantly
View attachment 166366

Ah, not sure, best you could do is change the code, compile and check.

CTCaer · May 8, 2019

Artur95 said:
Hello CTCaer, i lost one of my sd card reader socket pins. do you think hekate will work if i change in hekates code "SDMMC_BUS_WIDTH_4" to "SDMMC_BUS_WIDTH_1"? i rather have 1/4 speed and being able to use homebrew than nothing.

You can try, but doubt it will work.

As per spec, UHS bus is not compatible with 1 bit data bus.
On the other hand, after testing that, try to also kill low voltage high speed (UHS).

https://github.com/CTCaer/hekate/blob/master/bootloader/storage/sdmmc.c#L623

Code:

if (cond & SD_ROCR_S18A && supports_low_voltage)

to

Code:

if (0 && cond & SD_ROCR_S18A && supports_low_voltage)

vulcanodky · May 25, 2019

I have the same issue, replaced the sd card reader but same problem...il loads in Horizon OS but dont load any CTW.

Ill87 · May 25, 2019

HungNswitch said:
Now I have this new error:

"Failed to init SD card.
Make sure that it is inserted.
Or that SD reader is properly seated/"

@CTCaer would you please help me? I will pay you.

vulcanodky said:
I have the same issue, replaced the sd card reader but same problem...il loads in Horizon OS but dont load any CTW.

A few months ago I also had this error message and could use the SD card only with exfat. A few days ago I tried again with guiformat format the sd card fat32 and start with the latest hekate version and it worked. Maybe it helps someone here

vulcanodky · May 25, 2019

Ill87 said:
A few months ago I also had this error message and could use the SD card only with exfat. A few days ago I tried again with guiformat format the sd card fat32 and start with the latest hekate version and it worked. Maybe it helps someone here

I'll try, im a little desperate with this problem...why its happen this?

mitcha · May 25, 2019

OP this issue happen to me 10mn ago , i just blow air in the card reader and its worked now.

happen 3 times in 6 months , card in fat32

edit : this post is not for OP but for the post of vulcanodky

vulcanodky · May 26, 2019

mitcha said:
OP this issue happen to me 10mn ago , i just blow air in the card reader and its worked now.

happen 3 times in 6 months , card in fat32

Dont work...dont know what to do...

mitcha · May 26, 2019

vulcanodky said:
Dont work...dont know what to do...

just for info , perhaps the sdcard pins don't touch the sdcard reader pins , try to press the sdcard when inserted (just with 2 fingers ) , to see if the card reader is dead or need replacement.

vulcanodky · May 27, 2019

mitcha said:
just for info , perhaps the sdcard pins don't touch the sdcard reader pins , try to press the sdcard when inserted (just with 2 fingers ) , to see if the card reader is dead or need replacement.

I have replaced the sd card reader with the same result...

mitcha · May 27, 2019

vulcanodky said:
I have replaced the sd card reader with the same result...

have you tried what i said before ?
im out of idea if all that dosent help.

vulcanodky · May 28, 2019

mitcha said:
have you tried what i said before ?
im out of idea if all that dosent help.

When i press the sd card reader with the micro sd inside, i launch a payload but it doesnt load, the screen freezes just in the logo (f.e. with SX OS).

mitcha · May 28, 2019

vulcanodky said:
When i press the sd card reader with the micro sd inside, i launch a payload but it doesnt load, the screen freezes just in the logo (f.e. with SX OS).

idk ,start from scratch with a formated fat32 card with 32k cluster and try ams or reinx instead.
you said it loads in OFW , try formating the sd card in horizon.

pOLLYpoCKET · Jul 5, 2019

CTCaer said:
Your sd card is not seated properly.

Try to do this test:
http://i.gzn.jp/img/2017/08/25/clear-cases-nintendo-switch/s05.jpg
In the image you can see a black padding above the sd card reader. Try to find it's location on your switch by raising the stand.

Then press that spot and try to load a cfw or backing up BOOT0/1 for example.
Sth small though. Not a full backup. And keep pressing it.

Check results.

Sorry for the necrobump, but this fixed the issue for me. I disassembled the switch and added a small piece of foam there so it pressed down on that spot. Working perfectly now.

Physicist_569 · Sep 1, 2019

Sorry for necrobumping! @Artur95, were you able to make it work by tweaking the hekate code and changing SDMMC_BUS_WIDTH_4 to SDMMC_BUS_WIDTH_1 as well as killing the low voltage high speed as mentioned by @CTCaer above? I have the same issue as you where the female slot on the motherboard for the SD card reader got messed up. Thanks!

Artur95 · Sep 2, 2019

didnt tried it, sorry @Physicist_569

Galamooth · Sep 11, 2019

[QUOTE = "HungNswitch, publicación: 8396601, miembro: 465750"] Hola,

Estoy en OFW 6.0.1 usando Reinx.
El otro día desconecté la tarjeta SD de mi conmutador Nintendo (no cambié nada en la tarjeta SD).
Después, no puedo usar mi tarjeta SD cuando estoy usando Hekate 4.2.

- Probé una nueva tarjeta SD, formato exfat y fat32. Sigue siendo el mismo problema.
- OFW reconoce la tarjeta SD, pero Hekate 4.2 todavía no.
- El interruptor de Nintendo podría formatear la tarjeta SD sin ningún problema.

El gran problema es que no puedo restaurar NAND porque Hekate no reconoce la tarjeta SD.

El error que obtengo es:

"Error [FatFS]: NOFAT
Error al montar la tarjeta SD (Error 13 de FATFS).
Asegúrese de que exista una partición FAT ... "

¡Pagaré a la persona que resuelva esto por mí! [/ CITA]

una i me pasaba algo similar.. al pero al intentar restaurar la nand.... solo deje presionado el boton power durante unos instantes y leyo correctamente la informacion ! tal vez no tenga nada que ver pero es un detalle que puede ayudar!!!

saudos!

stupidly fix it !!! Easy, when you finish the 10.9.8.7 ..... counter and you have to press the power button, leave it pressed for a few moments and if you read the information !!!!

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

HungNswitch said:
Hi,

Im on OFW 6.0.1 using Reinx.
The other day I unplugged the SD card from my nintendo switch (Didnt change anything in the SD card).
Afterwards, I am unable to use my SD card when I am using Hekate 4.2.

- Tried a new SD card, exfat and fat32 format. Still same issue.
- OFW recognize SD card, but Hekate 4.2 still does not.
- Nintendo switch could format the SD card without any issue.

The big problem is that I cannot restore NAND cause of Hekate does not recognize SD card.

The error I get is:

"[FatFS] Error: NOFAT
Failed to mount SD card (FATFS Error 13).
Make sure that a FAT partition exists.."

I will pay the person who solve this for me!

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

stupidly fix it !!! Easy, when you finish the 10.9.8.7 ..... counter and you have to press the power button, leave it pressed for a few moments and if you read the information ! salu2

Hacking [FatFS] Error: NOFAT Failed to mount SD card (FATFS Error 13). Make sure that a FAT partition exists

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