Flashing phone means putting a set of commands about network frequency,operating voltage,ringtones etc on the phones flash drive with which the phone operates,these set of commands are called flash files.
when we say flashing a phone means putting a flash file in the phone.
flashing may be required if the phone is not working properly or if a new version of flash files are available for that phone or in the case of cdma phones you have flash files for phones to work on ruim if they have ruim support and hardware.
For flashing a phone you need expensive hardwares and a lot of expertise bcoz mistake in flashing can cause the phone to not work properly in some cases make the phone dead.
pls give me solution which software we can use for flashing the cdma phone &where from i purchase or down load this software