eMMC not detected by radxa-zero-erase-emmc.bin or rz-udisk-loader.bin

[mihsu81]

Hi guys,

Just received a Radxa Zero (RS102-D4E64H) yesterday and I’m not able to flash an OS on it.

I’ve put it in bootloader mode, flashed radxa-zero-erase-emmc.bin, and the eMMC didn’t appear as a mass storage device. On HDMI I can see that U-boot cannot see the eMMC.
Getting: Card did not respond to voltage select! : -110

The eMMC is definitely working because the Android version which came preloaded with the device starts just fine.
Flashing rz-udisk-loader.bin doesn’t help either. U-boot still doesn’t find the eMMC.

[greggyz]

I have the same problem in Windows. I can flash android through flash-all.bat but no matter what I do I can’t access it as a USB device.

[mihsu81]

I have the same problem in Windows 10 and Ubuntu 20 on 2 different laptops.
I would say it is not OS related but maybe the eMMC flash is different in this version of the board.
The version marking on my Radxa Zero is v1.51.

[greggyz]

Same version, 1.51. Coming from Raspberry Pi the support is a bit underwhelming. Hard to find any info. I hope we will figure it out.

[Kelvin_Henrique]

did you installed the driver on windows?

https://wiki.radxa.com/Zero/dev/maskrom#Enable_maskrom

[mihsu81]

Yes of course. Followed all the steps. Got stuck at the step where the device should have appeared as a USB Mass Storage. Checked the HDMI output and noticed that the sideloaded binaries are not able o access the eMMC flash.

boot-g12.py /home/mihsu81/Downloads/radxa-zero-erase-emmc.bin
Firmware Version :
ROM: 3.2 Stage: 0.0
Need Password: 0 Password OK: 1
Writing /home/mihsu81/Downloads/radxa-zero-erase-emmc.bin at 0xfffa0000...
[DONE]
Running at 0xfffa0000...
[DONE]
AMLC dataSize=16384, offset=65536, seq=0...
[DONE]
AMLC dataSize=49152, offset=393216, seq=1...
[DONE]
AMLC dataSize=16384, offset=229376, seq=2...
[DONE]
AMLC dataSize=49152, offset=245760, seq=3...
[DONE]
AMLC dataSize=49152, offset=294912, seq=4...
[DONE]
AMLC dataSize=16384, offset=65536, seq=5...
[DONE]
AMLC dataSize=1362288, offset=81920, seq=6...
[DONE]
[BL2 END]

[mihsu81]

Did you buy the device recently? I got mine yesterday from Allnet China.
I wonder if the issue is with a batch, or a newer revision not being covered fully by the binaries.

[greggyz]

Got it 2 days ago. v1.51

[mihsu81]

Worked on it a bit over the weekend and got around the issue.
Hopefully the binaries will get updated soon and we’ll be able to flash them as shown in the instructions.

Basically, I flashed an SD Card with DietPi and loaded u-boot.bin using RZ_USB_Boot_Helper_V1.0.0.exe. This allowed me to boot from the SD card temporarily.
After that from within DietPi I flashed u-boot.bin to the eMMC (/dev/mmcblk2 in my case) with the command:

sudo dd if=u-boot.bin of=/dev/mmcblk2 bs=512 seek=1

Lastly, I flashed the eMMC with DietPi (since it was the OS I needed) with the command:

sudo dd if=DietPi_RadxaZero-ARMv8-Bullseye.img of=/dev/mmcblk2 bs=1M

Hopefully this will help others.