Unlaunch freezes at
MISMATCH IN FAT COPIES?
twlnf has a critical bug that doesn’t properly update the entire NAND after modifying it, which causes certain homebrew (like the Unlaunch installer) to throw an error.
While fixable, the method to do so isn’t set in stone and largely varies between systems. One method is to delete any DSiWare installed via twlnf in the past, but it has also been reported that moving all DSiWare to the SD card and back to the system can help in some cases.
There is no audio or boot splash when launching “LAUNCHER” using Unlaunch
That is intentional. If you’d like to get those features back, install hiyaCFW.
I get a black screen when trying to launch the Unlaunch installer from TWiLight Menu++
This is a bug with how the IPC values are cleared (or the lack there of). IPC values are used by audio in TWiLight Menu++.
Until the next release of TWiLight Menu++, go to the TWiLight Menu++ settings, highlight the theme option and then press LEFT/RIGHT until you select the R4 theme. Exit out of TWiLight Menu+++ settings, then launch
Alternatively, you could use an external launcher, such as GodMode9i
“An Error Has Occurred”
If you get this message when booting hiyaCFW, it means you have too much free space on your SD card. The amount of free space compatible goes by every other range of two gigabytes. For example, 0-2 GB worth of free space works while 2-4 GB doesn’t.
Enter the free space on your SD in the box below, press enter, and it will tell you if your SD has a working amount of free space.
Your SD card…
If your SD needs less free space, you can easily fill it with dummy files. Listed below are command prompt/terminal commands that will make 1GB worth of dummy files.
fsutil file createnew dummy0 1073741824
dd if=/dev/zero of=dummy0 count=1024 bs=1048576
Fill it up until the website says that it will work.
The reason this happens is due to the way the Nintendo DSi System Menu was made. It uses a signed 32-bit integer, which means once an overflow occurs, it will jump to a negative number of free space.
This causes the Nintendo DSi System Menu to freak out, resulting in an “An error has occured” screen. This was never intended by the developers, since the NAND never exceeded 128 MB.
However, by using hiyaCFW, the NAND space is now determined by an exterior factor (your SD card), which can vary in size, resulting in this odd behavior.