Hi I m new to the forum and I need your help. I own an LG R405-S laptop and yesterday I did bios upgrade. The new bios installed but after the reboot I get artifacts on the screen and windows can't load. I even have artifacts on bios but after some seconds (the boot screen is clear without artifacts). The original bios was LHOSSF0C with EC 17.1D can anyone please provide me this bios or an other except the LHOSSF13 EC 17.23 that I flashed ? Before the upgrade my laptop worked fine but I wanted to upgrade the bios in order to change CPU on the future. Thank you very much.