yap imetoka mkuu. Nimesha update nyingi hadi zile zisizosuport.
Download software ya zune connect simu yako na pc then utaiona update (kama simu official inasuport.)
kama simu hapo supported tumia forcing way hizi.
1. Iflash kwa kutumia hii 3rp party tool inaitwa seven eighter kutoka kwa hawa jamaa windows phone hacker
Want Windows Phone 7.8 now? Try this easy tool (Update: Now supports 7720) - Windows Phone Hacker
3. Zikikataa zote download manual cab file then tumia kufalsh simu yako.