Default [Q] Unlocking LTE on LG Optimus G E975 Indian Version

Hello all,

I've been using LG Optimus G E975 for a year now.

I bought the phone for the sole reason that it was the world's first first quad-core phone with in-built LTE connectivity.

But here in the Indian version, the phone only supports HSPA and a maximum DL speed of 42 Mbps.

I've read on Nexus 4 forums on how they have managed to unlock the LTE connectivity on the LG Nexus 4 E960.

Since the two phones have exact same hardware, is it possible to do the same on the E975?

Also, is there any custom ROM out there which supports LTE Connectivity for the LG E975?

Please let me know if there is a feasible solution, as I'm not that good at developer level stuff like 'build.prop'..