Hello,

I have an IOT2050 Advanced 6ES7647-0BA00-1YA2 FS9 with the V1.3.1 FW. I have an image of the OS on the SD card and I set it as number one in the boot_targets, but the booting sequence is only completing itself when I'm connected to the device with the UART cable. The same thing happens when the eMMC is the number one priority in the boot targets. When the cable is off, the device is starting ok, but after 6-7 seconds the STAT led is RED and when connecting myself to the device with UART cable again, I have IOT2050 blinking in the putty window. After simply typing “boot” command, the device is a booting and running normally afterwards. 

So basically, when the UART cable is not connected, the boot sequence for some reason is stopping/not completing itself. I can't track down the logs of the unsuccessful bootings, because when the cable is connected, I don't have any issues. There is no visual representation when connected to the display port as well. 

Any ideas what can be wrong with the Uboot/Kernel settings?

Attaching a log file of the succesfull boot.

Thank you in advance.