Chosen Solution

i have connected to a wifi last night and next morning i woke up and my phone is not turn on. the last night had a thunderstom and my router was damaged. was that the reason?

@dj007 since it was only connected over Wifi it is very unlikely that the thunderstorm had anything to do with it. You did not tell us if you charged your phone and what you have checked on it. I would start with that. After that you can do the troubleshooting per the manual

Of course you can also try a hard reset as outlined on here

next day i plugged in my phone but nothing happens. neither it turns on or respond. the battery persentage is normal.