It is important to note that "Lite" versions are essentially demo or cracked versions of the original, server-dependent Setool2. They do not have access to the official Setool servers for the latest firmware or "signed" loaders for newer Sony Ericsson Xperia models (A2 and Android platforms).
: Take out the SIM card and Memory Stick/M2 card.
It enables faster flashing and allows users to read the flash memory more efficiently.