I just updated my firmware to 4.4.2 via the LG software (South East Asia version). What I found out is that I can no longer manually search for telco network and pick the network of my choice. It will always present "No Networks Found" when I attempt to search. Auto network selection works fine. However, I need to search and select manual network due to the network alliance for data roaming.
I send my phone in to the service center and they tested it with different phones and found that it is consistent and they declare that it is a bug in the KitKat firmware. They downgraded my phone back to 4.1.2 and tell me that they will feedback the bug to the software team, however there is no commitment on when this will be fixed.
Please help me test the manual network search on your 4.4.2 and let me know if you face the same "No Networks Found" issue. I want to know if this is limited to the South East Asia version of the firmware or it is bigger.