My bpi r64 just checked out (died)?

Banana Pi Router design BPI-R64(MT7622)
1

Have had it running for about three month, sometimes a bit high in temperature, acrylic case, antenna connection solid, psu is good.

Does these happen to die often?

2

Try to get some out over debug-uart,maybe there is “only” some filesystem corruption and can be recovered with sdcard

3

Thing is, no leds blinking at all…

4

Is power Led on?

(Fillchars)

5

Is your power supply ok?

6

I read it that he checked already,

7

Is the PSU checked with led on the PSU? Or really voltage on the board?

Can be damaged power cable.