my x8 phone isn't work

[#1]

I charged the phone.
At one point, switch off the power, time passes ...
Later, wanted to see the time - does not respond to buttons.
I reconnect the battery, try to restart the phone.
It shows a red LED and nothing else.
seus does not update the phone.

what are the solutions to the problem?

upd

after my actions

now it shows SE Logo, but xrecovery is not loading

[#2]

LED isn't blink when i try it

but phone try to boot

boot is not sucessful

[gwhispererz]

Remove battery, re-insert battery and try again!

[gwhispererz]

Just keep holding the back button for some time (while connected to PC/Laptop).

[#5]

of course. the attempt number... over 9000

[#6]

Yes, I'm doing.
I know these devices are basically.
I have been repairing phones before

[gwhispererz]

If all the above did not 'revive' the phone, it could be faulty phone usb connector or faulty usb cable.

[#8]

when i try to connect phone to PC with USP

- LED is green

[#9]

cable are working

usb in my pc are working

green led and pc companion/SEUS/SEUS Pro(USP) tell me about: phone usb are working

[gwhispererz]

Good! Can you power up phone then?

[#11]

All my attempts to run the phone in the GUI unsuccessfuly.