Help me! Lattepanda Alpha does not turn on and the blue LED blinks

<t>Hello dear friends! I have a problem with Lattepanda Alpha. Connecting to power-up starts blinking blue light and, if the power-on is observed, does not respond. Also, the Arduino light (D13) does not light up, but if you frequently connect and disconnect the power cable, you need to blink.<br/>
P.S. sorry for the poor quality translation</t>