good good, remember if your phone is switched off it wil revert back to its normal settings, i suggest you save the code in a note on the phone for future use. you can have it auto run the code at start but I suggest keeping it that way to save against having a infinite reboot loop.
root
kernel-config default <profileName>
kernel-config load lv
kernel-config limits 250 1000
kernel-config save myconfig
kernel-config default myconfig