Code:
sceUtilityMsgDialogUpdate drawSpeed=0x4A
...
sceUtilityMsgDialogUpdate drawSpeed=0x4B
...
sceUtilityMsgDialogUpdate drawSpeed=0x4C
...
sceUtilityMsgDialogUpdate drawSpeed=0x4D
A JpcspTrace including sceUtilityMsgDialogUpdate might be useful to check if this value is accepted by a real PSP.
Always include a complete log file at INFO level in your reports. Thanks! How to post a log