Hacking how to rebuild nand, from almost nothing

[ferjero989]

hello world.
i come here in shame
i cant find my nand backup, only my prod.key
hekate loads up but all errors point to corrupted emmc
i cant back it up, i cant see its info. all fails to init emmc.
what do? (funny enough, i got 3 different nand backups of my wii, and 2 of my wiiu)

 

[Lacius]

Follow this guide:
https://suchmememanyskill.github.io/guides/unbrick/

If you get through the whole guide and it still doesn't work, you might be out of luck.

 

[ferjero989]

cant even build the fw.

EmmcHaccGen started
Indexing nca files...
Hashing File:     013c8ad764fa8f0faad47a825f34a9b9.nca... OK!
Parsing File:     10.0.4\013c8ad764fa8f0faad47a825f34a9b9.nca
Hashing File:     02274b1db001e0c3ee2d3ef09ddbb3ad.nca... OK!
Parsing File:     10.0.4\02274b1db001e0c3ee2d3ef09ddbb3ad.nca
Unhandled exception: System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation.
 ---> LibHac.MissingKeyException: Unable to decrypt NCA section.
Key Type: Common
Key Name: key_area_key_application_00
   at LibHac.FsSystem.NcaUtils.Nca.GetDecryptedKey(Int32 index)
   at LibHac.FsSystem.NcaUtils.Nca.GetContentKey(NcaKeyType type)
   at LibHac.FsSystem.NcaUtils.Nca.OpenAesCtrStorage(IStorage baseStorage, Int32 index)
   at LibHac.FsSystem.NcaUtils.Nca.OpenDecryptedStorage(IStorage baseStorage, Int32 index)
   at LibHac.FsSystem.NcaUtils.Nca.OpenRawStorage(Int32 index)
   at LibHac.FsSystem.NcaUtils.Nca.OpenStorage(Int32 index, IntegrityCheckLevel integrityCheckLevel)
   at LibHac.FsSystem.NcaUtils.Nca.OpenFileSystem(Int32 index, IntegrityCheckLevel integrityCheckLevel)
   at LibHac.FsSystem.NcaUtils.Nca.OpenFileSystem(NcaSectionType type, IntegrityCheckLevel integrityCheckLevel)
   at EmmcHaccGen.nca.NcaFile.AddNcaInfo()
   at EmmcHaccGen.nca.NcaIndexer.Indexer()
   at EmmcHaccGen.nca.NcaIndexer..ctor()
   at EmmcHaccGen.Program.Start(String keys, String fwPath, Boolean noExfat, Boolean verbose, Boolean showNcaIndex, Boolean fixHashes)
   at EmmcHaccGen.Program.Main(String keys, String fw, Boolean noExfat, Boolean verbose, Boolean showNcaIndex, Boolean fixHashes)
   --- End of inner exception stack trace ---
   at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor, Boolean wrapExceptions)
   at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
   at System.Reflection.MethodBase.Invoke(Object obj, Object[] parameters)
   at System.CommandLine.Invocation.ModelBindingCommandHandler.InvokeAsync(InvocationContext context)
   at System.CommandLine.Invocation.InvocationPipeline.<>c__DisplayClass4_0.<<BuildInvocationChain>b__0>d.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.CommandLine.Builder.CommandLineBuilderExtensions.<>c.<<UseParseErrorReporting>b__20_0>d.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.CommandLine.Builder.CommandLineBuilderExtensions.<>c__DisplayClass15_0.<<UseHelp>b__0>d.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.CommandLine.Builder.CommandLineBuilderExtensions.<>c__DisplayClass24_0.<<UseVersionOption>b__0>d.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.CommandLine.Builder.CommandLineBuilderExtensions.<>c__DisplayClass22_0.<<UseTypoCorrections>b__0>d.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.CommandLine.Builder.CommandLineBuilderExtensions.<>c.<<UseSuggestDirective>b__21_0>d.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.CommandLine.Builder.CommandLineBuilderExtensions.<>c.<<UseParseDirective>b__19_0>d.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.CommandLine.Builder.CommandLineBuilderExtensions.<>c.<<UseDebugDirective>b__11_0>d.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.CommandLine.Builder.CommandLineBuilderExtensions.<>c.<<RegisterWithDotnetSuggest>b__10_0>d.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.CommandLine.Builder.CommandLineBuilderExtensions.<>c__DisplayClass6_0.<<ConfigureConsole>b__0>d.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.CommandLine.Builder.CommandLineBuilderExtensions.<>c__DisplayClass13_0.<<UseExceptionHandler>b__0>d.MoveNext()

 

[LapCheong]

Your prod.keys when and how you dump it?
It would best if you have a backup before this happens. But you can try using lockpick rcm to dump. But I think the chances of the keys are low.

 

[ferjero989]

Your prod.keys when and how you dump it?
It would best if you have a backup before this happens. But you can try using lockpick rcm to dump. But I think the chances of the keys are low.

i got those keys... well.. a long time ago..do they change depending on the fw?
lockpick cant init emmc either..

 

[LapCheong]

i got those keys... well.. a long time ago..do they change depending on the fw?
lockpick cant init emmc either..

Nope, this is my fisrt time hearing about this program to rebuild emmc. I used my old prod.keys with masterkeys 6 so most likely around fw 7 era. While works, so sad to say your keys is bad

 

[Draxzelex]

i got those keys... well.. a long time ago..do they change depending on the fw?
lockpick cant init emmc either..

Are you using the latest Lockpick_RCM?

 

[Tamalulu]

Looks like your eMMC is dead.
You can buy one for cheap on AliExpress and rebuild your NAND from scratch.

This thread might be able to help you too: https://gbatemp.net/threads/can-someone-with-a-banned-switch-help-me-repair-mine.577354/