Is there a way to revert it to "Yes"? I mean, it was originally "Yes" but after flashing some ROMs and a few bricks it displays "No". I'm not sure when did it exactly happen. I tried flashing the stock ROM(C6603_10.5.1.A.0.292_Generic_NCB) and using the Xperia Companion(10.7.A.0.228) but...