Share ko lang po alam ko may nakakaalam na nito pero sa mga ndi pa nakakaalam gawin nyo ito para stable ang signal ng sun nyo...
I ON nyo lng ung roaming data nyo tapos punta kayo sa select network operator search nyo lang pag lumabas ns ung mga network may smart 3G na nakalagay click nyo lang ung at stable na ung signal ng data nyo ganyan po ginawa ko para maging stable ung data ng sun ko...
Because SUN uses the signal towers of SMART whenever that location has no connection to SUN that's hy they're using signal hand over to smart for signal purposes or a.k.a data roaming so the R is the roaming symbol, explained by the technical rep. of SUN.