I recently got an LG G4 phone from a friend and I was really excited until I got to the screen where it said enter the account previously any get. I was so frustrated and thought they set me up but they had also gotten it from a friend.

I did everything the YouTube told me to do except the unknown sources option is grey and it won't let me select it at all (so basically I'm stuck at step 4 of this advice given in a related question here).

My parents don't necessarily know I have it. I don't have any money or time to send it into the Lg company and I want to get it working so I can stay in touch with my friends when I go on my trip.

What should I do ? I can't install files because it's blocked and can't add an account because every time I do it goes right back to enter the previously synced email. Would putting a SIM card in help ?? How do I completely wipe the system. My trip is in about a week help please.

  • Ok it's not the same because unlike everyone else I can't download the file without it saying that my phone has denied the installation of ubkoen sources to be downloaded and when I go to the settings to click on it it's grey and I can't select it or add an account it's like it's super locked. I looked up everything it recommended but it still doesn't work.
    – Ayanna
    Commented May 29, 2016 at 22:23
  • OK, so I've edited your question to make that stand out. Good luck then; unfortunately, I don't have another solution for you.
    – Izzy
    Commented May 29, 2016 at 22:33
  • Would putting a new SIM card in it work ?
    – Ayanna
    Commented May 29, 2016 at 22:35
  • No, that wouldn't change the "FRP" (Factory Reset Protection). I've just left a note for Matthew (who gave the answers on the other question) with a pointer to yours, so he might take a look here and hopefully has a hint for you.
    – Izzy
    Commented May 29, 2016 at 22:37
  • It would helpful if you added the exact steps you took, so we know what options are left. Commented May 30, 2016 at 18:17

1 Answer 1


Ok let's try this,

  1. Download this files:
  2. Install LG G4 USB drivers
  3. Disable your Anti-Virus (as it will detect the tool as a virus)
  4. Put your LG G4 into Download mode by following this steps:
    • Power Off the phone
    • While Holding Vol+ connect USB cable
  5. Now run the tool exe according to the OS you're using (X86 or X64)
    • enter image description here
  6. Just follow the on-screen instructions to bypass the FRP lock
  7. Done
  • It says I cannot open the file 😕
    – Ayanna
    Commented May 30, 2016 at 17:47
  • @Ayanna At what point do you see that? Commented May 30, 2016 at 18:17
  • When I clicked on the link then I went to downloads and I said cannot open file.
    – Ayanna
    Commented May 30, 2016 at 18:46
  • 1
    as i mentioned, you have to disable your anti-virus first! Commented May 30, 2016 at 18:48

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