Help for edit bootcmd

[shahram437]

Hi,
I want to edit bootcmd and putt "bootm 0x00... in it. when I enter to save it, boot starts and I can't save it.
Anybody knows how to prevent boot and saveenv?

 

[shahram437]

I want to search in linux directories, but in linux page nvr reboots every 3 minutes and a comment :
"numbers date time cpu is alive"
Already repeats every 10 seconds!
So I can't type anything or search.
And system reboots after 3 minutes.
How can I stop this events?