Well, it looks like after just a few weeks with my new RPI4, it's dead.
I had it set up with OP2, and it was using an SSD for root folder. It was sitting on the desk, running fine, and we discovered we had a leak with rain coming in the window. To get the RPI out of the way, I just switched off the power without shutting down. The RPI never got wet.
Now, a couple of days later, I tried to bring it back up. Nothing. Red light, test points on the board show proper voltage, but no green light and apparently no attempts to boot at all.
I followed the instructions for re-installing the bootloader, but nothing happened. It's just not attempting to read the SD card at all.
So, I'm out $65 I guess. It was a 4GB version and working really well.
This is a very interesting issue with regards to putting this new RPI on my boat. Of course, I always try to make sure that I properly shut down my OpenPlotter system before I turn everything off, but occasionally "stuff" happens. I hope this one incident isn't an indication of the sensitivity of the new RPI4 to accidental power loss.
I did read on the main Raspberry Pi forum that the RPI4 is different - is uses onboard EEPROM to store a bootloader, and it can become corrupted. I have no way of knowing that this might be my problem, but as I said, I did follow their instructions for re-installing the bootloader with no success.
For the moment, back to my RPI3+! Be careful out there on the bleeding edge, kids.
I had it set up with OP2, and it was using an SSD for root folder. It was sitting on the desk, running fine, and we discovered we had a leak with rain coming in the window. To get the RPI out of the way, I just switched off the power without shutting down. The RPI never got wet.
Now, a couple of days later, I tried to bring it back up. Nothing. Red light, test points on the board show proper voltage, but no green light and apparently no attempts to boot at all.
I followed the instructions for re-installing the bootloader, but nothing happened. It's just not attempting to read the SD card at all.
So, I'm out $65 I guess. It was a 4GB version and working really well.
This is a very interesting issue with regards to putting this new RPI on my boat. Of course, I always try to make sure that I properly shut down my OpenPlotter system before I turn everything off, but occasionally "stuff" happens. I hope this one incident isn't an indication of the sensitivity of the new RPI4 to accidental power loss.
I did read on the main Raspberry Pi forum that the RPI4 is different - is uses onboard EEPROM to store a bootloader, and it can become corrupted. I have no way of knowing that this might be my problem, but as I said, I did follow their instructions for re-installing the bootloader with no success.
For the moment, back to my RPI3+! Be careful out there on the bleeding edge, kids.