Greetings. I have LG L4 (E440), and recently it got in Boot Loop (after I installed some programs it just turned off, and whenever i try to turn it on, it just shows LG Logo, then LG Animation and starts just repeating animation). At first I was quite confused because I didn't know how to enter download mode (you have to hold both + and -). I thought that was the only problem i was to encounter, but i was wrong. No matter what technique i use, regular LG Support Tool or LG Flashtool i always end up at Software Upgrade stage at 4% or 5%. In log it says that it is because of: drivers\mstrgen.sys file search fail Any help on how to fix this would be appreciated!