I had just gotten the Lg G3about two months ago and my phone did the same thing to me... I also noticed that it says 30/30 attempts remaining; and no matter how many passwords are tested the number only goes down to 29/30 and then stops. I had called the Lg tech support and they said the best thing they could do is work on it or send me a new one, kind of sounds like that is the only way to solve this problem from my findings! Hopefully someone can find a solution but to all of you just as confused as I am; this is not a password that the owner sets; I believe it may be linked to some kind of virus or something
Found a solution.
Remove the battery.
Put the battery back.
Turn it on.
Wait for few seconds (mine keeps making a knock knock sounds with 2 or 3 seconds interval)
Put in the pin (phone still making a knock knock sounds with 2 or 3 seconds interval)
Keep the phone screen on by tapping the screen.
Viola it worked!
Ok so the same thing happened to me also. Im almost thinking someone somehow hacked my phone. I have the LG Stylo, it started a couple weeks ago and some of my apps started malfunctioning or not working at all, then my keyboard changed, then yesterday my phone reset out of nowhere and the 30/30 attempts password screen popped up. The Device Manager password reset idea would have been ideal, however, when I tried that it said my device could not be located. I tried the password reset anyway, and it said that it sent, however I still got nothing on my phone at all. I REALLY dont want to do a hard factory reset on it and lose everything I have on it, so PLEASE for the love of sweet breakfast meat, someone please help me out!!!!!
I was just watching netflix when my phone suddenly restarts by itself. At first the reset let me go through, then it restarted again. This time a white screen popped up asking for a pin/password to decrypt. I never had a password because I used a lock pattern. Now I tried everything to get to my phone, but it just stays on the same white screen asking for a passcode.
I was just watching netflix when my phone suddenly restarts by itself. At first the reset let me go through, then it restarted again. This time a white screen popped up asking for a pin/password to decrypt. I never had a password because I used a lock pattern. Now I tried everything to get to my phone, but it just stays on the same white screen asking for a passcode.
Did anyone find a fix for this? My daughter's phone has just come up with the white screen and knock code on her lg k4. Barely anything out there about this. She's gonna go loopy