I have a US black dsi running 1.4.5. , after installing unlaunch using the flipnote lenny method, i later found out that issues could arise from installing unlaunch v0.9 on a 1.4.5 firmware dsi. Not being very smart, I reset my dsi to factory settings using the settings, thinking it would clear out unlaunch. Now, whenever I turn my dsi on, the unlaunch splash screen will appear and freeze, forcing me to turn off my console. If I hold A how ever, there is about a 1/10 chance it boots properly...
Removing Unlaunch from a stock dsi?
Removing Unlaunch from a stock dsi?