my sony tablet P has 3G sim slot but im unable to make calls...is there any way to make calls by hacking the device in sony tablet
Search some of my previous posts and other's.
No voice calling but you can try VOIP, the modem card didn't have this function.No having can help.
I did so I could with mine, an AT&T 3G model. I almost got stuck with bricking but survive. Info is sparse on this model on hacking but most things on A model apply.
I updated it to 4.0, root it (said to be impossible from stock but I did,I won't recommend this route,I had only succeeded after many tries), swap out the modem card to an unlocked one, as cannot be unlocked. Lots of work but better.
It is the only tablet that is truly portable and pocketable. But viewing video on full screen is hard to get used to, and viewing in half screen makes it smaller size than my note 2! Ironic. Deep black and nice color on the screen, what a pity.
I also bought it during woot sale, the leather case I chose as part the deal is nice but I usually don't carry it.
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