As many ways to trap a rat there is so it is. There are so many softwares and hardware for specific tasks. in your case and not only that but to any other case where you find the phone is off completely we use hardware tools and then softwares to give it life. The only phone that takes more than...
be wise never give out your phone to anyone to insert his / her sim card for so many reasons (it's hundred of pages). Again when you sell or buy a second hand electronic gadget ensure you know the other partner well & can reach out for him / her easily plus consult well informed / Hi-Tech guys.
There are a number of issues that can lead to such. a key can be in a bad position due to several other factors, a failed fan, a dry joint on the board, control pannel setting issues, software issues. I can help sort out this issue. 0728365374
currently it isn't working due to poor network. please incase you need internet just but a router of which there are so many models e,g linksys, tp link, etc, contract an ICT Tech for advise on the best internet package & platform