Sebaszz

power of your router for couple of minutes and restart your computers, see if that solve your issue

could be water damage, check if you see signs of that.

this could be alot of issues, the thing i think of when a battery swells up makes the phone unusable is that is could leak form the battery on to the motherboard and make it unusable, so yeah you could try a new motherbord but you never know untill you tested that out.. Update (06/29/2017): and are you using an original charger?

maybe a driver issue? check for drivers @ acer website

check if your dc jack is lose?

is it able to charge?

the dc jack could be a issue, check if you can replace that.

dead battery i think as you don't give us much more info to come by.

you probs damaged a connector, take it a part carefully and look for damages on any connector.

its a new phone so could have factory issues, if i where you claim your warranty..