Android 15: fastboot : Waiting for Any device.

[Axent]

Hello.
I need help.
I have the Compulab board with the image on EMMC that doesn't provide ADB.
I tried to flash the new built image to SD card. This works well and now I can see
adb device with "adb devices" command.
But I want to flash the image to EMMC itself.
When I try do this with image booted from SD, I always have:

Please, help. How can I reflash the EMMC?? Thanks.
Thanks.

[JosephAtNXP]

Hi,

Thank you for your interest in NXP Semiconductor products,

You can use the uuu script for flashing eMMC.

> uuu_imx_android_flash.sh for Linux OS
> uuu_imx_android_flash.bat for Windows OS

Refer to chapter 3.3 Flashing board images.

Regards

[Axent]

Hello.

Thanks for reply.
But now I have another issue with EMMC.
https://community.nxp.com/t5/i-MX-Processors/Android-15-How-to-restore-EMMC/m-p/2125158#M238831
I cannot reflash it through fastboot or uuu (accidentally wrong image downloaded, no uboot)
And now I am searching how to flash empty EMMC or some way to 'copy' booted image from SD card.

Please, help. What should I do to flash bootloader at least to EMMC (or copy from SD).?
I don't have available detected USB device for UUU (EMMC doesn't have the valid bootloader), also fastboot is impossible.
I can just boot from SD card. But I'm really misunderstanding how to rebase my working bootloader from SD to EMMC.

Thanks.

[JosephAtNXP]

Hi @Axent,

That's the function of UUU, it doesn't require U-boot to enter to fastboot. When the processor boots in serial download mode you can confirm it's UUU can burn eMMC/SD by running

uuu -lsusb

When you cannot access boot pins and the processor fails to fetch boot images, it should enter to serial download, please confirm with the past command.

Regards

[Axent]

Thanks Joseph.
This question is solved.
But I now have another issue.
If you can, I will be glad if you ll can help.
https://community.nxp.com/t5/i-MX-Processors/uuu-imx-android-flash-sh-doesn-t-work/m-p/2128098#M2389...
Thanks.

[JosephAtNXP]

Hi,

Are you flashing a built image or did you download a prebuilt? Please try with a prebuilt one.

When running the command without -D option, make sure that all the necessary files are under that directory. Finally, make sure to run the script with sudo.

Regards,