1. AC Question's Avatar
    Hi all,

    My lg g4 is stuck on the firmware update screen. I was trying to downgrade from marshmallow to lollipop using LGUP but for some reason it didnt work and LGUP displayed an error. My phone was stuck on the update screen so i removed the battery as I was unable to turn it off with the power button.

    Now whenever I try to turn it on it goes to the firmware update screen. I have tried holding the power button and volume down button to do a full reset but when I get to the full reset screen and confirm it, nothing happens and it reboots the update screen again.
    03-13-2016 02:17 PM
  2. itguyjax8430's Avatar
    Hi all,

    My lg g4 is stuck on the firmware update screen. I was trying to downgrade from marshmallow to lollipop using LGUP but for some reason it didnt work and LGUP displayed an error. My phone was stuck on the update screen so i removed the battery as I was unable to turn it off with the power button.

    Now whenever I try to turn it on it goes to the firmware update screen. I have tried holding the power button and volume down button to do a full reset but when I get to the full reset screen and confirm it, nothing happens and it reboots the update screen again.
    Welcome to Android Central!

    You may need to download the LG Software Suite to fix it. You can not downgrade the software. Hopefully you didn't brick the phone.
    03-13-2016 03:00 PM
  3. shippb's Avatar
    Hi all,

    My lg g4 is stuck on the firmware update screen. I was trying to downgrade from marshmallow to lollipop using LGUP but for some reason it didnt work and LGUP displayed an error. My phone was stuck on the update screen so i removed the battery as I was unable to turn it off with the power button.

    Now whenever I try to turn it on it goes to the firmware update screen. I have tried holding the power button and volume down button to do a full reset but when I get to the full reset screen and confirm it, nothing happens and it reboots the update screen again.
    My lg was doing the same thing and it wouldn't allow me to perform a hard reset while the charger was plugged in. I had to allow it to charge to around 30% then unplug the charger and perform the reset. If it's not charged a little bit it won't work and if the charger is plugged in it won't work. I hope this helps and you perform the reset by holding the - volume down a and power key at the same time and when the LG logo pops on release just the power button
    07-29-2016 06:55 AM
  4. Jakob Isindahowz's Avatar
    Rather than start another thread I thought I would just add my experiance with my LG V10 that just went through the whole "stuck on update/warning do not unplug usb" thing.
    I simply removed the battery and put it back in then turned it on and all was fine.
    This was after I unattached the usb power and there had been 0% of any update done according to the frozen screen.
    02-26-2017 01:42 AM
  5. Michael Sumners's Avatar
    Okay, so MY lgg4 just tonight started giving me the firmware update screen when I turn it off to use my Quick Charge 2.0 charger. And to restart my phone I had to take off the case and take out the battery excetera. Plus NOTHING was happening on the update screen. It just sat their zero.
    Since my G4 serves me VERY well as is, and I'm not really a geek for my phone, i'm not really interested in updating to Nougat/7.0.
    So how can I stop this update from coming in every time I turn off my phone?
    I'd rather not do any kind of factory reset because I have my phone set up just fine as is and I really don't want to start all over again.
    04-17-2017 12:53 AM
  6. louminator1's Avatar
    to answer the question or solve the problem after reading the sstatements of firmware problems as i had the same problem thisi wiorked for me as follows .

    take out the batery and placit back in with the firmware screen showing
    my phone hapened to be fully chargeed at the time ad the screen cam on when i droppped my phone and the batttery fell out .
    turn on phone and thats it.
    i mad sure that i had juice first bu plugging in the phone while the phone was off.
    would have ruined my whole day!!!!!
    09-25-2018 12:31 PM

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