Many Sony Ericsson phones of that era were locked down with carrier-specific menus and icons (e.g., Vodafone or T-Mobile). SETool2 Lite allowed users to install "Generic" firmware, providing a cleaner, faster interface. Acoustic & Camdriver Mods:
The version was a standalone software executable that allowed users to service these phones without purchasing the expensive hardware dongle. Version 1.11 (and subsequent updates like 1.11v and 1.08) became widely popular because it unlocked functionality that was previously restricted to paid users. Setool2 Lite V.1.11 Download