Switch facing weird emmc corrupt data issue

[DunDunDo]

Hi there.
I face the issues of inconsistent booting to atmo and games crashing most of the time but HOS on its on works fine. I narrowed my search to data on emmc as replacing it didnt change anything and i confirmed that everything else including ram and sd card works fine. Systemrestore is not helping here so the issue is somewhere deeper. Now do you guys know of any tools or ways to completly restore all data on emmc to how it came originally? Dont ask about hardware as its working fine.

 

[Hayato213]

Explain your setup, what model you have, any modchip, SD card format, any emunand etc?

 

[DunDunDo]

Explain your setup, what model you have, any modchip, SD card format, any emunand etc?

Switch V1, no modchip only rcm, fat32, using emunand and sysnand both work the same. Clean hekate install with atmo also a clean HOS.

 

[Hayato213]

Switch V1, no modchip only rcm, fat32, using emunand and sysnand both work the same. Clean hekate install with atmo also a clean HOS.

It might be your SD card since everything is installed on the SD card, also if you have an emunand then it is on the SD card too. Did you ever h2testw the card? As for SD card performance A1 card would be slower than A2 card.

 

[DunDunDo]

It might be your SD card since everything is installed on the SD card, also if you have an emunand then it is on the SD card too. Did you ever h2testw the card? As for SD card performance A1 card would be slower than A2 card.

i did test it not fully tho. But i installed android on it and it worked flawlessly finishing stresstests. Hekate doesnt show any errors also bought another sd card just to be sure and no change (both 128gb)

 

[Hayato213]

i did test it not fully tho. But i installed android on it and it worked flawlessly finishing stresstests. Hekate doesnt show any errors also bought another sd card just to be sure and no change (both 128gb)

What you using A1 or A2 card?

 

[DunDunDo]

What you using A1 or A2 card?

2 A1 cards

 

[Hayato213]

2 A1 cards

A2 have faster read time than A1 card, about 2.6x faster, that why you would see lags compare to using an A2 card, doing a NAND backup on an A1 card is much slower than on an A2 card.

 

[DunDunDo]

A2 have faster read time than A1 card, about 2.6x faster, that why you would see lags compare to using an A2 card, doing a NAND backup on an A1 card is much slower than on an A2 card.

okay and? thanks for that info but it doesnt help me fix my switch

 

[Hayato213]

okay and? thanks for that info but it doesnt help me fix my switch

Slow boot time has to do with the A1 card, as for your game crashing it is probably have to do with sigpatches/syspatches.

 

[DunDunDo]

Slow boot time has to do with the A1 card, as for your game crashing it is probably have to do with sigpatches/syspatches.

Are you an AI? I dont have slow boot times since it doesnt boot at all most of the time and how can i even get sigpatches when im launching those games on HOS.

 

[Hayato213]

Are you an AI? I dont have slow boot times since it doesnt boot at all most of the time and how can i even get sigpatches when im launching those games on HOS.

I am no AI lol, if your emunand doesn't boot then it is your Emunand but then again that would point to your SD card, not like you would install games on internal emmc so everything is on your SD card, where the emulated emmc is stored on. In term of corrupted data, you can have not to up to date patches leading to corrupted data, bad game dumps etc if you are not using exFAT.

 

[DunDunDo]

I am no AI lol, if your emunand doesn't boot then it is your Emunand but then again that would point to your SD card, not like you would install games on internal emmc so everything is on your SD card, where the emulated emmc is stored on. In term of corrupted data, you can have not to up to date patches leading to corrupted data, bad game dumps etc if you are not using exFAT.

Im on HOS since atmo doesnt work so im not using exfat nor do i use dumps since i have 2 orginal catrridge games. I said mulitple times its not the sd card since h2testW didnt show anything. And what patches are you even talking about?

 

[Hayato213]

Im on HOS since atmo doesnt work so im not using exfat nor do i use dumps since i have 2 orginal catrridge games. I said mulitple times its not the sd card since h2testW didnt show anything. And what patches are you even talking about?

You don't have original NAND backup prior to messing with Systemrestore?

 

[DunDunDo]

You don't have original NAND backup prior to messing with Systemrestore?

maybe idk but before messing with systemrestore it was bricked so i assume its of no use

 

[Hayato213]

maybe idk but before messing with systemrestore it was bricked so i assume its of no use

If you don't have a working original NAND to restore to, then you probably need to rebuild the NAND with EmmcHaccGen, if your emunand on your SD card as a hidden partition then you can enable SD emummc raw parittion you can probably make a NAND backup of that and restore it to your sysnand internal emmc.

 

[DunDunDo]

If you don't have a working original NAND to restore to, then you probably need to rebuild the NAND with EmmcHaccGen, if your emunand on your SD card as a hidden partition then you can enable SD emummc raw parittion you can probably make a NAND backup of that and restore it to your sysnand internal emmc.

View attachment 495332

I did that like 4 times already and thats how i originally unbricked it to what it is now.

 

[Hayato213]

I did that like 4 times already and thats how i originally unbricked it to what it is now.

I guess you can try again, if you don't have a working NAND backup to restore to, you might have to go through rebuild NAND.

 

[DunDunDo]

I guess you can try again, if you don't have a working NAND backup to restore to, you might have to go through rebuild NAND.

i even did it today so i really dont see a point

 

[Hayato213]

i even did it today so i really dont see a point

Well if the emunand wasn't working then it is obvious no point using that as a backup, I mean it is bad that you don't keep a NAND backup, I guess your last resort is EmmcHaccGen