i bought a OPI-plus 2 board on which i was using linux it's been someday and my board was working in morning and in the evening it doesn't boots up after lots of try its just blinking the red light which is not normal, initially led was lit continuously from the boot till power is connected.
I am currently in the same predicament. I started with lubuntu on my Orange Pi Plus 2. I was updating the firmware and thought I was done. Powered it down to move my work area around and now I cannot boot. Not from the stock image (dolphin I think) nor from the SD card slot. I am very confused on this.