Hacking USBLoaderGX: black screen when loading game on Wii

[jummy0]

I've seen previous threads about common errors so I've tried my best to fix those.
Here is what I've done:

- Transferred my desired WBFS to an external FAT32-formatted hard drive using Wii Backup Manager (the game is a small modification of DJ Hero 2 [SWBE52] which I've confirmed works on Dolphin, created using Wiimm's ISO Tools).
- Used the d2x cIOS installer v3.1 to install the d2x-v10beta52 base57 cIOS to slot249 rev65535 (I've also tried v10beta53-alt+base57, v10beta52+base56, and v10beta52+base58).
- Plugged the hard drive into USB port 0 (the one closer to the edge).
- Opened USBLoaderGX v3.0r1272, set the game IOS to 249, turned NAND Saves Emulation OFF, and tried to start the game.

USBLoaderGX can recognize the hard drive, display the game, and play its disc channel animation, but trying to play it results in a black screen (except when using IOS-58 base, which returned to the homebrew channel).

Here is my syscheck (ignore the system time, I haven't set it properly).

Spoiler

SysCheck HDE v2.4.0 HacksDen Edition by JoostinOnline, Double_A, R2-D2199, and Nano
...runs on IOS58 (rev 6176).

Region: NTSC-U
System Menu 4.3U (v513)

Drive date: 07.14.2008
Homebrew Channel 1.1.2 running on IOS58

Hollywood v0x11
Console ID: 81199736
Console Type: Wii
Shop Channel Country: United States (49)
Boot2 v4
Found 99 titles.
Found 47 IOS on this console. 16 of them are stubs.

IOS3 (rev 65280): Stub
IOS4 (rev 65280): Stub
IOS9 (rev 1034): No Patches
IOS10 (rev 768): Stub
IOS11 (rev 256): Stub
IOS12 (rev 526): No Patches
IOS13 (rev 1032): No Patches
IOS14 (rev 1032): No Patches
IOS15 (rev 1032): No Patches
IOS16 (rev 512): Stub
IOS17 (rev 1032): No Patches
IOS20 (rev 256): Stub
IOS21 (rev 1039): No Patches
IOS22 (rev 1294): No Patches
IOS28 (rev 1807): No Patches
IOS30 (rev 2816): Stub
IOS31 (rev 3608): No Patches
IOS33 (rev 3608): No Patches
IOS34 (rev 3608): No Patches
IOS35 (rev 3608): No Patches
IOS36 (rev 3608): No Patches
IOS37 (rev 5663): No Patches
IOS38 (rev 4124): No Patches
IOS40 (rev 3072): Stub
IOS41 (rev 3607): No Patches
IOS43 (rev 3607): No Patches
IOS45 (rev 3607): No Patches
IOS46 (rev 3607): No Patches
IOS48 (rev 4124): No Patches
IOS50 (rev 5120): Stub
IOS51 (rev 4864): Stub
IOS52 (rev 5888): Stub
IOS53 (rev 5663): No Patches
IOS55 (rev 5663): No Patches
IOS56 (rev 5662): No Patches
IOS57 (rev 5919): No Patches
IOS58 (rev 6176): USB 2.0
IOS60 (rev 6400): Stub
IOS61 (rev 5662): No Patches
IOS62 (rev 6430): No Patches
IOS70 (rev 6912): Stub
IOS80 (rev 6944): No Patches
IOS222 (rev 65280): Stub
IOS223 (rev 65280): Stub
IOS249[57] (rev 65535, Info: d2x-v10beta52): Trucha Bug, NAND Access, USB 2.0
IOS250[58] (rev 65535, Info: d2x-v10beta52): Trucha Bug, NAND Access, USB 2.0
IOS254 (rev 65280): Stub
BC v6
MIOS v10
Report generated on 01/09/2016.

Any help would be appreciated.

 

[Cyan]

your setup is good and your steps to make it work too.

does the official game (not modded) work fine?
is it a problem only with the modded one?

Try another loader, wiiflow for example. if it works, it's an issue with a setting in USBloaderGX. if not, it could be a problem with the patch or mod itself. do you know any other users who successfully play it on real hardware? which loader and setup ?

 

[jummy0]

(snip)

The official game doesn't work either, in UsbLoader or WiiFlow. UsbLoader closes to the Homebrew Channel, and WiiFlow closes to the System Menu.

The original disc I ripped it from works fine, and both WBFS work fine in Dolphin.

The mod itself is custom-made by me so no others have played it. However, that seems to not be the issue at this point.

I will try some other game WBFS as well.

 

[Cyan]

did you try to play the disc launched from the loader instead of the official disc channel?

Do you know the official requested IOS for that game?
lot of music games work better with base57, but that's not always true. some games require base 38 (animal crossing) or 53 (sponge bob) for example.
I think you can see the requested IOS in WiiBackupManager.
if not 56/57/58, did you try a cIOS with the official requested base?

Another thing you could try is Hermes cIOS, if you are on Wii (not vWii).
these are usually installed in slot 222, 223 and 224. 223 have a mix of two different base and was recommended a lot for music games.
note that you actually don't have them installed, you'll have to either use the installer, or modmii to get them.

The accessory is connected through USB?
be sure it's plugged before launching the game, as only d2x v10 r53 (10-alt) is supporting plug&play, but that version of the cIOS is having compatibility issues so it's not recommended to use for all games.

 

[jummy0]

Ok, I managed to get it working! DJ Hero 2 uses IOS57, so I installed the same cIOS with base57. Then the official game started working but the mod was still getting a black screen.

It turns out I forgot to change the Ticket and TMD, so the Wii was blocking the improperly-signed code. After deleting them and letting Wiimm's ISO Tools generate new ones using Trucha, it started working. This is probably why it always worked on Dolphin, which seems to ignore code signing.

Thank you so much!

 

[Cyan]

thank you for letting us know what you did to fix your problem
I wouldn't have thought about the wrong signature, usually modding tools take care of that automatically, but you said you did the mod yourself so that make sense you can forget to do it manually.
I think Wiiscuber does it automatically, Trucha signer doesn't and you need to select the option after editing a file.