Pixhawk 4 board seems bricked

Dear David

Coud you help me please.
After an unsuccessful firmware flashing using QGC. Through the IO Debuging port (after usb pluging) I see the following messeges:

through the port FMU debufer

Leds of PX following (only blue led is flickers, the rest are solid).

When I firmware setup throug QGC everything looks good

But in fact, the device does not flash anymore after the last unsuccessful firmware 08/21/19

On the device panel, the PX4 vice is recognized as MindPX.

Could you please tell what happened with Pixhawk4. It is necessary to burned the bootloader through the programmer and how can this be done?

Best regards,
Muzalevskiy Konstatnin