Archived:Maximum length of Symbian recognizer file names is 16 characters (Known Issue)
.mdl recognizer DLLs, installed under \system\recogs, should not have file names longer than 16 characters (including the extension). A recognizer with a longer filename may fail to load or cause the device to lock up during startup.
Note that pressing and holding the Edit (pen) key during startup will prevent add-on recognizers (and other autostart items) from being loaded. This may help in situations where the device cannot start normally due to a malfunctioning recognizer.