ito ng procedure ko baka makatulong...
download mu root explorer:
make sure na yung block sim mo yung nakainsert at yun ang active na used mo..
open root explorer tapos change r/o to r/w hanapin data folder open tapos hanapin system folder open hanapin si netstats at usage stats delete both, restart your phone..
intindihin para di magkamali.. do at your own risk.