Yes po dami na ring post about dito. sadNot Working naba upgrade sim ?
working namna ung roam off magastos lang kaso may chances ma block ung text mo kaya hirap din mastock langmay nabasa ako kahapon.. ginawa nya is nag roam on/off muna sya bago nag upgrade sim.. success daw based sa experience nya.
good point.. kaya yung sinabi kong nabasa ko kahapon. blocked na daw sa sms sim nya dahil sa roaming.. 3 times na kasi sya nag roam on/off..working namna ung roam off magastos lang kaso may chances ma block ung text mo kaya hirap din mastock lang