I want to know if my Android LG Optimus S, from Sprint, can upgrade to the latest version of Android, 4.4. Does anyone know?
according to it your phone is sadly not on the list.
The LG Optimus S may not see an official update for a while, if at all. Being that this version of the Optimus is older and has lower specs than preferred (plus it being a Sprint phone), it may not see much of any further updates than what is found now. Even unofficial version ROMs are scarce, and I think the highest version might be 4.0 ICS at best. The main websites for custom ROMs do not really list any ROM version above Gingerbread.