Control board doesn't work

[Rusla]

Hi.
Today my printer just didn't start. Power supply is good, It has 12V and 5V. Also ftdi seems working, cause computer has found com port. But there are any signs of live, LCD just shows all symbols on. What could it be?

Thank You

[Mark]

do you have a picture or a video for that?

[Rusla]

I've fix it already. That was bad soldering, I heat up board with solder station and it works now. Lets see for how long