GT540 Optimus Swift Original Stock ROM Firmware Package
Heres a list of all original stock ROM firmware package for Optimus GT540 also known as GT540 Swift, Loop GT540. The firmware below were arrange according to their designated region/countries origin.
Note: the Optimus GT540 Original stock relse is Android OS, v1.6 (Donut), and it is upgradable to froyo and gingerbrd.
Firmware version list according to region or countries
Available link for download