Hi, I own a LG L Fino (D290N) which is stuck in the screen with the LG logo. I unrooted my device days ago, now I restarted it and it didn't seem to boot up fully anymore, just stuck in the LG screen. I already factory-resetted my phone, but its still stuck. And also, everytime I want to go to the download mode it just says "boot certification very" and leads me to black screen till I put my battery in and out. When I try to update it via LG Mobile Help Tool, I get a purple screen with "DBI Apps Watchdog Reset" Hope someone can help me. Thanks.