[Q] Restore problem topic

Hi

I have the following on my lg g2 d802 from south Korea .

Under Software Information I have the following

Android Version 4.4.2

Baseband Version M8974A-AAAANAZM-1.0.190084

Kernel Version 3.4.0

Build Number KOT491.D80220A

Software Version D80220A-SEA-XX.

my phone when restoring previous with Lg Mobile Support Restored to Stock D80210f-sea-xx , how do I return phone to full stock including
android 4.2.2 , Baseband back to stock , Kernel back to stock and build number back to stock ,

Every time I use flast tool r&d test brings uo lg mobile support tool. if I add the script into the host file it will not do anything .

I am really stuck and also phone will not root at all so I can flash other kernel or stock rom.