02-06-2022, 11:04 AM
I ordered a "Rockpro64 v2.1 2018-07-02" board and recommended power supply in December 2021 and it has never booted. I am seeing the same symptoms:
* Green power LED lights.
* RJ45 jack LEDs light, one green, one orange.
* No other LED lights up.
* No power enabled on any USB port.
There is no activity on the serial port UART2_TX as observed by a USB to 3.3V TTL adapter and minicom:
$ /usr/bin/minicom -D /dev/ttyUSB0 -b 1500000
Additionally I have watched UART2_TX (expansion port pin 8) with an oscilloscope and there is no activity. The output is steadily high, except while holding the reset button when it is steadily low.
UART2_RX is unconnected.
I have tried Armbian, DietPi, Manjaro, and Open Media Vault. I am writing the SD card like this:
$ sudo dd if=Armbian_21.08.1_Rockpro64_focal_current_5.10.60.img of=/dev/mmcblk0 bs=1M
I have tried booting with and without expansion port pins 23 and 25 shorted to disable the SPI boot.
Is there anything else to try, or should I get an RMA?
Thank you for your help.
Greg.
* Green power LED lights.
* RJ45 jack LEDs light, one green, one orange.
* No other LED lights up.
* No power enabled on any USB port.
There is no activity on the serial port UART2_TX as observed by a USB to 3.3V TTL adapter and minicom:
$ /usr/bin/minicom -D /dev/ttyUSB0 -b 1500000
Additionally I have watched UART2_TX (expansion port pin 8) with an oscilloscope and there is no activity. The output is steadily high, except while holding the reset button when it is steadily low.
UART2_RX is unconnected.
I have tried Armbian, DietPi, Manjaro, and Open Media Vault. I am writing the SD card like this:
$ sudo dd if=Armbian_21.08.1_Rockpro64_focal_current_5.10.60.img of=/dev/mmcblk0 bs=1M
I have tried booting with and without expansion port pins 23 and 25 shorted to disable the SPI boot.
Is there anything else to try, or should I get an RMA?
Thank you for your help.
Greg.