Hi!
i am a beginner
I own 2 boards carambola

the first boot I had the opportunity to meet a selection,
But after a system upgrade, the selection will not be possible

fw_printenv edition
bootcmd = bootp; setenv bootargs root = / dev / nfs nfsroot = $ {serverip}: $ {rootpath} ip = $ {ipaddr}: $ {serverip}: $ {GatewayIP}: $ {netmask}: $ {hostname}: : off; bootm
baudrate = 115200
bootdelay = 10
"
Please choose the operation:
1: Load system code to SDRAM via TFTP.
2: Load system code then write to Flash via TFTP.
3: Boot system code via Flash (default).
4: Entr boot command line interface.
7: Load Boot Loader code then write to Flash via Serial.
9: Load Boot Loader code then write to Flash via TFTP.

You choosed 3

0
"
what can I do to get a choice

Hello, roboSoft! Please fill issue report here: https://github.com/8devices/u-boot. Our Linux developers do not read this forum.

Seems like you left float serial port RX input (low voltage level on rx input)

thanks for your quick response

i will fill issue report here: https://github.com/8devices/u-boot. ok !

and hope for a response

best regards

sorry
i forgot somthing

for gedass

after booting carambola i can working on the serial console with a terminal programm

only the choice on u-boot menu is not working

regards