Sony z1 compact has died

[Winterok]

I had problems with battery drops.
I was ready to set a new version of android today.
I left my phone charging in a car. And after 4 hours i get back in car and took my phone. it said me that it has 77% of charge.
I turn it on and on Wave picture it suddenly turned off.
I set it on charging again and LED turned red and then turned off.
And after that no reaction. When i came home i set my phone charging and there was no reaction. I tried to turn it on and after that wasn`t even vibration. I tried to put of:
SIM and put in > No Reaction.
Put of SD > No Reaction
Press ON buttom and Vol + > No Reaction
Press ON buttom and Vol - > No Reaction
Press OFF buttom (Near SIM) > No Reaction
Conecting to PC > No Reaction

Any suggestings which will help my phone?

[dg26]

I have this problem quite a lot, but using the volume up and power off always solves it.
Try plugging in wall charger then hold volume up and power button until u feel it vibrate three times.

[Uliwooly]

@Winterok

connect the phone to a wall charger > press and hold power & volume up for 10 seconds > let it charge for 2 hours 

[Jake-SonyXperia]

Hi dg26,

If you can get the device up and running then I do suggest performing a backup of your content and maybe running through a software repair to remove any software issues.

Backup instructions

You may also be able to run through a software repair even if you cannot get the device to be seen by the PC or get it powered on.

Software repair