Recovery not happening

Technical Support
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1

Hello Torodex Team,

After updating my device tree I got some error. After that I could not get in the board only reset is possible. I could not able to go for recovery mode. Please us solve the problem. How to go for recovery mode now. This are the call logs :Net: eth0: ethernet@30be0000
Normal Boot
Hit any key to stop autoboot: 0
MMC: no card present
switch to partitions #0, OK
mmc0(part 0) is current device
Scanning mmc 0:1…
Found U-Boot script /boot.scr
4809 bytes read in 13 ms (360.4 KiB/s)

Executing script at 46000000

Loading DeviceTree: imx8mm-verdin-nonwifi-v1.1-dev.dtb
62223 bytes read in 21 ms (2.8 MiB/s)
63 bytes read in 18 ms (2.9 KiB/s)
Applying Overlay: verdin-imx8mm_lt8912_overlay.dtbo
2441 bytes read in 25 ms (94.7 KiB/s)
Applying Overlay: verdin_eth.dtbo
251 bytes read in 28 ms (7.8 KiB/s)
failed on fdt_overlay_apply(): FDT_ERR_NOTFOUND
10097240 bytes read in 314 ms (30.7 MiB/s)
Uncompressed size: 23902720 = 0x16CBA00
Bootargs: root=PARTUUID=b61538cb-02 ro rootwait console=ttymxc0,115200 console=tty1 consoleblank=0 earlycon
ERROR: Did not find a cmdline Flattened Device Tree
FDT and ATAGS support not compiled in - hanging

ERROR ### Please RESET the board

2

Hi, I’m the Toradex AI Assistant. The Toradex Support team will follow up with you shortly!

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Based on the context provided, it seems you are experiencing an issue with entering recovery mode after updating the device tree, which has resulted in a boot error. Here are some steps you can try to resolve the issue and enter recovery mode:

  1. Ensure Proper Recovery Mode Setup: Make sure you are following the correct procedure to put your module into recovery mode. This typically involves specific hardware button presses or jumper settings on your carrier board. Refer to the “Loading Toradex Easy Installer Guide” for detailed instructions specific to your module and carrier board.

  2. Check USB Connection: If you are using a USB connection to enter recovery mode, ensure that the USB cable is properly connected and try using a different cable or a non-USB3 port, as mentioned in the context.

  3. Configure Carrier Board: If you are using the Ixora Carrier Board, ensure that X9 is configured in OTG mode by removing JP2, as this can affect the recovery process.

  4. Use Serial Console: Access the serial console on UART1/UART_A to get more information about the error messages and to manually interact with the bootloader. This can help diagnose the issue further.

  5. Review Boot Arguments: Check if any custom boot arguments (teziargs) are causing issues. You can modify these arguments to include debug for more detailed kernel output, which might help in diagnosing the problem.

If these steps do not resolve the issue, you may need to consult the detailed recovery mode instructions specific to your module or seek further assistance from Toradex support.

Please, also check if these links can help you solve your problem:

Device tree overlay, Syntax Error.

3

Hi @Jai8877

For us to be able to help you, you need to provide some basic information of what you are trying to do.

  • Which module and carrier board are you using?
  • Can you describe the steps you took to apply the device tree overlay?
  • Are you applying a custom or one of the pre-compiled device tree overlays?

As mentioned by @ToradexAI, you can find how to enter the recovery mode in this article.

4

Also, you may want to check this article.
You can disable the device tree overlays with the skip_fdt_overlays U-boot environment variable.

5

Thanks a lot now its working fine.