Originally Posted by massimiliano.peloso
I have a technical question ... you can use the 3G network for surfing the Internet and at the same time the wifi network to move files only?
Yes, I'm doing it on my Nexus 4, check this thread:
Another guy is doing it on an Optimus G, he did it first as far as I can tell:
Originally Posted by zelendel
Simply put no. Phones are not made to use 2 different wireless signals at once.
There is no way around it
Bat cave One
That's incorrect. Android phones can use multiple wireless signals at once (wifi, cell, mobile data, bluetooth, nfc). And they can have multiple network interfaces up at the same time just like any linux box can. It just happens that the network manager turns of mobile data when you turn on wifi, but that's on purpose (to save you battery/cost), and not because the phone isn't capable of it.
Not sure why you say with such authority there's no way around it. If you don't know the answer to something for sure, better don't give a wrong answer.
There's even an app on the play store that can loadbalance a download over wifi and mobile data at the same time:
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