LG L3-E400 boot/brick problem topic

Hello i'm new to forum and need help for LG L3-E400 bricked phone.I had installed some 4.42 version ROM , after that i installed 4.04 stable (i forgot name) and it worked well while i had installed sa andreas and some games , and tried to expand his memory to 16 gb ( From video on youtube) and messed up with kernel (processor MHz-s).

I have tried many times with KDZ way , downloaded Europe firmware because i'm from Bosnia and from main site there is no firmware for Bosnia , tried flashing (3GQVCT-DIAG) , goes to 99% and got error Wparam 100 Lparam 6 , phone reboots and same thing happens LG LOGO / WHITESCREEN LG LOGO / WHITESCREEN. (EMERGENCY MODE WORKS)

I have installed LG mobile united drivers , some LGE AndroidNET modem drivers but my main drivers (Mass storage / LG USB E400) wont install because my phone always reboots. My device manager is always refreshed , tried also LG PC Suite but it dont recognize it ,LG Support Tool , also gets Error while upgrading.

Tried something like Offline KDZ but it wont do it or i have done something wrong (same error repeats Wparam 100 Lparam 6) , i had heard something about ADB but dont know how to use it.

So if someone knows how to repair pls tell me i'm desperate :((