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When i use the phone, the screen turn off.
I press power button to on screen but phone does not respond.
When i hold power button i see red diod blinking, and nothing happens.
I also try hold power on and volume up.
please watch this video https://www.youtube.com/watch?v=GUJqTLaA2Uk
Please advice.

It really looks like an hardware fault, but before contacting your seller for a replacement under warranty:

1) Perform a factory reset
2) Flash to the latest firmware
3) Perform another factory reset
4) Chech if everything works or not.