Hello bka po my mkakasagot.
Ung smart lite upgraded.sim.ko po kc lgi ngmmobile network error nkaka ilan palit n at balik s smart center hindi dn nla alam.kung bakit ngkakaganon.. Nung huli inobserbahan ko pg pla ngoopen aq ng internet un kya pla ngkakaganon xa.. Wlang signal at hindi mka text o...