1. What is this ?
This is list of firmware files in .kdz type for all LG G2 variants.
2. Why I need this?
You can know what country/brand get updated and you can download .kdz file to flash it in offline unofficial mode.
3. Ok so how to flash it ?
Best way is this way : http://forum.xda-developers.com/show....php?t=2432476
4. How to check what suffix have my phone or does it have last version, or how to check link for .kdz for my phone?
Use this site http://csmg.lgmobile.com:9002/csmg/b...58635050100008
but delete example imei  at end and use your own IMEI number (it can be 15 or 14 numbers).
5. What will happen if I will flash White version kdz to my Black version phone?
Totally nothing because in G2 situation both versions (White and Black) use same .kdz file. When .kdz is BK at end the WH suffix is used to other things like beta kdz files, user manuals, drivers etc. It was checked by me and it's confirmed .
6. What will happen if I will flash 32GB version when I have 16GB phone ?
It's not confirmed by many people but probably nothing will happen. Somebody checked that 32GB and 16GB kdz file has same MD5 checksum. If you're wondering why there are 2 versions of .kdz file, the answer is easy. LG will update faster popular version of G2 in a given country.
7. What will happen if I will flash other model ? E. g. I have LGD802 and I will flash LGF320K.
Don't do this ! Never flash Korean version G2 to European or American and vice versa. It's not even recommended to flash same model with other region firmware. E. g. you have European G2 and you want to flash firmware from China. You may lose some specific settings like APN's and LTE network.