Default [Q] Galaxy S2 wont turn on or charge

hi,

Yesterday mine Samsung Galaxy S2 GT-i9100 died.

I was busy in the evening with looking pics in instagram and suddenly it freezed and shutted down.

I tried to restart it but it didnt respond

the recovery mode and the download mode is not working battery was around 70%.

Is this a soft brick or a hard brick and what can i do to get it work.

Sorry for my bad english