Menu key>options>securty options>securty wipe>enter
Then andika neno Blackberry
Then press Wipe
Baada ya hapo chagua takataka zote unazotaka kudelete kutoka kwenye simu yako
Muhimu;
Simu iwe full charged
All datas in your divice will be deleted, so unashauriwa kutoa memory card na sim card
Njia nyingine nzuri ni ku upgrade os yako kama unatumia ya zamani
Lakini kumbuka huwezi kubadili pin yako ya bbm kamwe, hiyo ndio kitambulisho chako kwa server za bb