You need to flash it for what purpose,?
You need to flash it to reset to original settings or security lock hang purpose?
You can flash using software for that purpose,If you need to unlock it from Network lock using Flash method?
You can use the Unlock code,that is best than software flash,.Get the Unlock code from hereOnlinegsmunlock.com
and unlock it from Network Lock.Then you can use any GSM Network Sim card in the Phone....It's best for Unlock.....you can use the Flash software for De-brand the Phone also Removing Logo,Settings etc from previous provider...after unlock it de-brand will be Done.
Use the instructions below to Unlock it from Network lock step by step:
Samsung D780 Unlocking Instructions
Do not enter any wrong unlock
codes on your Samsung D780 mobile phones. If you enter over a certain
amount of wrong unlock codes on your Samsung D780 mobile phone, your
phone may get hard locked and sometimes become unusable.
1 - Switch ON your Samsung D780 with a NOT ACCEPTED
2 - Compose : #7465625*638*CODE#
: We mean, to use a sim card from a network other than the network your Samsung D780 is locked to.
: Its the unique Unlock Code for your Samsung D780.