First dito LG-K317 unlock done..

[royiks]

LG-K317 una dito AT@T lock ..

Tool:
Octopos.

Enable "USB Debugging" mode;
Type 277634#*# or *#546368#*371# or 3845*#371#, go to "Port Check Test" (or "SVC Menu -> Port Check Test") and switch "Port Check Test" to "Enabled".