If a virus was on a phone chip, and there was a virus on
one of the songs on the chip, but you deleted the song is the virus
still on the chip?
It could be possible for a computer virus to copy itself into other parts of
the phone. But that depends on vulnerabilities in the way the phone and
it's software are designed and implemented. It is possible to make
computers and cell phones that are not venerable to being infected by
computer viruses. But only takes one mistake by one software developer to
create a vulnerability. And since humans are not perfect, computers and
their software tend to have bugs that allow viruses to infect them.
If all the memory on the cell phone (or computer) is erased, the virus will
be erased as well. Anti-virus programs can also remove viruses from
computers without having to erase all the computer's memory.
- Scott P. Smith
Generally speaking, if you downloaded the file that contains a virus
into the phone's memory, but did not play the file, then it will not
have infected your phone's operating system. In this case, if you now
deleted that virus-containing file, the virus will be deleted too.
However, if you were to have the phone play the file (song), then the
phone's operating system will be "infected". In this case, deleting
the original file (song) that contained the virus, will not get rid of
the virus, which is now resident in the phone's operating system.
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Update: June 2012