Are you getting 25% error rate each time on reboot?
3 full reboots, between 15 to 30 every time.
What pool are you running at? Try litecoinpool and see if you get the same issue.
I was running on litecoinpool. I tried both US servers, then I moved to defcoin.secdsm.com and got about the same.
If you do check the back of the miner where the PCB is, you'll see 5 spring heatsink screws. Make sure none of those springs have shifted turing shipment and are touching any components on the board (there should be a washer in between the spring and PCB to prevent that but the spring can still move).
Washer / spring looks good.
Going to move it to the workbench so I can look at a few other things.
Also, going to re-burn the sd card.
Thanks,
Dave