Fusse.bin crashed and sd card initialized in slow mode.

[AlexMendoza]

So I've been having trouble with my switch crashing while playing games. I just rebuilt my sd card since my last one died so its not the sd card. Once it crashes it says the emmc running slow but then later on it works fine so I honestly don't know what it is . Might have to replace emmc but wondering if anyone has a idea what's wrong. The switch is modded with a trinket chip BTW. Pics for reference

 

[linuxares]

Test another SD Card. If that doesn't work, your SD Card reader is broken.

 

[AlexMendoza]

Test another SD Card. If that doesn't work, your SD Card reader is broken.

The sd card is brand new so I doubt it's that but the sd card reader can you replace that?

 

[linuxares]

Hmm...
Well if it's the eMMC it's harder to replace if you don't have a NAND backup.

If it's the sd card reader - https://www.ifixit.com/Guide/Nintendo+Switch+Micro+SD+Card+Reader+Replacement/113031

 

[AlexMendoza]

Hmm...
Well if it's the eMMC it's harder to replace if you don't have a NAND backup.

Luckily I have all my backups it's strange tho it says all those errors but after a few hours I turn it on and everything is fine. It only crashes once I play a game for 30min maybe it's heating up ? Like right now it's reading the sd card and I'm running a game to see if it crashes again. It's rather annoying

 

[linuxares]

Hmm strange? Is it maybe a bit loose. I would open it and press down the emmc and the sd card reader so they sit properly.

 

[AlexMendoza]

Alr

Hmm strange? Is it maybe a bit loose. I would open it and press down the emmc and the sd card reader so they sit properly.

I'll try that so just open it and press on it ?

 

[linuxares]

I'll try that so just open it and press on it ?

Yeah, while you're in (depending on the age of the Switch) I would change thermal paste as well.
I had this issue once with my game cart reader. It had come a bit lose and I just pressed it back.

 

[AlexMendoza]

Yeah, while you're in (depending on the age of the Switch) I would change thermal paste as well.
I had this issue once with my game cart reader. It had come a bit lose and I just pressed it back.

What thermal paste you recommend? Thanks for the help !

 

[Hayato213]

Does hekate says your SD card is in 1 bit mode?

 

[AlexMendoza]

Does hekate says your SD card is in 1 bit mode?

No it doesn't it just says initialized in slow mode like the pic I attached

 

[Hayato213]

Look like your eMMC is dying.

You might need an new emmc in which you can try the following

There are 2 way to retrieve it

First method

1. Try to recover the prod.keys with lockpick.rcm and try to backup boot0/1 if possible
2. Get a switch emmc from ali (OR try to reflow the emmc with flux and 400 degree after disconnecting it fully from the switch) *do not use hot air direct inside the switch, take out the emmc to a heat resistant mat * Then wait 5 min before putting the emmc back in, try hekate again to see if you can init the emmc
3. If reflowing does not work, use emmchaccgen to generate prod.keys with matching firmware version ( can be seen from hekate fuse count)

Second Method.

1. Buy a switch emmc from ali
2. You need a working donor prod.keys + donor raw nand then use your half broken prod.keys to sign the DONOR nand
3. Require NxNandmanager to sign the DONOR raw nand
4. Then use hekate to restore it to your emmc

Second method takes a bit of work like 3 to 5 hour and will not have a working serial number because it is created with a half broken prod.key

 

[AlexMendoza]

Does hekate says your SD card is in 1 bit mode?

Look like your eMMC is dying.

You might need an new emmc in which you can try the following

There are 2 way to retrieve it

First method

1. Try to recover the prod.keys with lockpick.rcm and try to backup boot0/1 if possible
2. Get a switch emmc from ali (OR try to reflow the emmc with flux and 400 degree after disconnecting it fully from the switch) *do not use hot air direct inside the switch, take out the emmc to a heat resistant mat * Then wait 5 min before putting the emmc back in, try hekate again to see if you can init the emmc
3. If reflowing does not work, use emmchaccgen to generate prod.keys with matching firmware version ( can be seen from hekate fuse count)

Second Method.

1. Buy a switch emmc from ali
2. You need a working donor prod.keys + donor raw nand then use your half broken prod.keys to sign the DONOR nand
3. Require NxNandmanager to sign the DONOR raw nand
4. Then use hekate to restore it to your emmc

Second method takes a bit of work like 3 to 5 hour and will not have a working serial number because it is created with a half broken prod.key

How do you even take the emmc out ?

 

[Hayato213]

How do you even take the emmc out ?

You tear down the switch.