Can't interrupt autoboot. odroidxu3-v2012.07: 97fdb7ed01a4f5cb96033eb4664ff598f7958527

[glscantlen]

The boot process can not be stopped even when holding down the "Enter" key.
Note, I am using the Odroid XU3, a serial console with Hardkernel 3.10.82 and miniterm.py

It appears that proper configuration for miniterm.py '--lf' will not emit ASCII code 0x0D when pressing "Enter". I suggest changing the test statement in "common/main.c" lines 231 and 252 to:
if((input==0x20)||(input==0x0d))

This test will provide a broader option of signaling for the already cumbersome procedure that interrupts the boot process.