The following conditions can cause the low memory manager to attempt to free memory resources:

• The amount of available flash memory on the BlackBerry® device falls below a certain threshold. The flash memory threshold depends on the amount of free RAM in the system. The flash memory threshold ranges between 400 KB and 800 KB.
• The number of persistent object handles that are available on the BlackBerry device falls below 1000 persistent object handles.
• The number of object handles that are available on the BlackBerry device falls below 1000 object handles.