Thursday, March 28, 2024

How to Downgrade LG G4 H818P (Dual) to 5.1.1 Lollipop


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37 COMMENTS

  1. My device is LG g4 h818p v20h …is this possible to downgrade by kdz file lollipop tht u provide???
    it is very much helpful for me

  2. Hi, I am really upset about the battery life of LG G4 with MM. I saw your tutorial and it’s seems very easy. But would like to know after I install android 5.1 & if I want to go back to MM, how I can do that? I would really appreciate if I can get reply for my query.

  3. I had an issue with the Android 6.0 giving sound from one ear in headphone and I decided to rollback to the 5.1.1 and first I asked specialist people with software they said it’s hard to rollback to android 5 in LG G4 and it could be damaged
    I followed your tutorial and everything went smooth
    I can’t thank you enough
    the sound issue fixed and now I can enjoy listinig again

  4. I am from srilanka .Mr. Faik can i know if this is a risky procedure or will this lead to some issue in the phone.. Mine is showing as h818p in the hardware info. I baught this mobile a couple of days ago and id remember if it came with LP or MM but i think it got updated when i first connected it to the wifi and I am having a batry drain and over heat issue.. Please help me with this..
    Jazak Allah khair in Advance..

    • to me, nothing wrong happened. just follow the guide very carefully. I successfully downgraded my G4 to 5.1. Just be careful a lot.

  5. how can i know what’s software version is compatible (Indonesia, algeria,etc) for my mobile
    i have lg g4 h818p and i bought it from Saudi arabia ?
    can any one help

  6. Hi,
    I am running Marshmallow H81820c, when I tried using LGUP, it stopped at 9%, on the phone something comes up in the text box, but only for 1 second then error 0x2000 comes up ‘flashing fail’, KDZ that I downloaded is Indonesia 10f kdz. Why this error, I tried different USB port, different computer, it’s all 2.0 USB port. Any clue?

  7. Hi Faiq,
    does the 5.1.1 Lollipop have MirrorLink? My H818p already came with Marshmallow installed and the option for Mirrorlink never existed.

    Thanks in advance.

  8. Dear faiq, i have g4 dual h818p , i hv got 2 queries:

    1. My battery drains so quick in MM , will downgrading MM to lollipop fix this issue ? If yes , wat kdz source should i use ( algeria, europe, etc ?)

    2. When i turn on data network feature , my phone gets mad (apps open by their own,keys are pressed automatically ) , and i havee to turn off my data connection to avoid this abrupt behaviour . what do u think could be the problem ?

    Waiting for ur prompt response.
    Thanx

    • The battery drain would likely be fixed as reported by other users. As far as other issues are concerned, these are just software bugs. Downgrading will fix most errors and bugs.
      Use the softwarw source specified in the tutorial.

      • sir i have same problem with LG G4 H818P(apps open by their own,keys are pressed automatically ).i followed the steps to downgrade to lolipop but,still am facing the problem
        plz help me to fix it…

  9. I downgraded but battery continues to drain fast. Also it takes ages to fully charge, something’s very wrong. I applied the Algeria version.

  10. I installed the Algeria version. Now everytime I reboot the phone I get a message (the current version is not available for user…).

    Also I put it to charge like 1:30am. Now it’s 7:30 and it only charged 70â„… and the phone is very heated. What possibly could have gone wrong?

  11. Hi Faiq, i bought LG G4 H818 N one month back and it was running without any issue on lolipop 5.1.but since i upgraded it to marshmallow 5 days ago my battery started to drain very fast.i regret the update very much and want to downgrade to lolipop.plz. help me how to downgrade LLG G4 818N ( Dual) to lolipop 5.1

  12. Hi,
    I have LG g4 dual , i m using marshmallow suddenly its shows unfortunately camera has stopped then I reset the device factory settings and erased the internal memory but the problem still the same!Now its also show unfortunately call has stopped.

    please advice is it software problem or hardware problem and how can i fixed it?

  13. Hi,
    I have LG g4 dual , it was working good until the latest system update!
    Now the phone speaker is not working sometimes, the music player stopps suddenly, when I reboot the phone all are working a little then the problem back again,
    I reset the device factory settings and erased the internal memory but the problem still the same!
    Is it an update issue or hardware?

    Thanks

    • Hi, Award Farra,
      If it was working fine before then It’s the software issue. After update, your phone’s system files I think have been messed up. Downgrade it using the method here.

  14. Hello, I recently bought a Lg G4 H818p. Since the day i started using this phone, upper part of the phone (camera area) overheats quickly. I thought that the problem was because software so i have done downgrading to lollipop as you determined. I succeeded. now my phone is running 5.1.1 but overheating problem was not fixed. What else can i do to fix this?

  15. Hello, I recently bought a Lg G4 H818p from dubai. Since the day i started using this phone, upper part of the phone (camera area) overheats quickly. I thought that the problem was because software so i have done downgrading to lollipop as you determined. I succeeded. now my phone is running 5.1.1 but overheating problem was not fixed. What else can i do to fix this?

  16. hi, i still dont understand, at first you said that we need to download kdz lollipop from your link (appear indonesia, algeria,etc), and on the step 5 you said marshmallow kdz to select?

    so if we want to downgrade we choose refurbish or updgrade?

    • Hi,
      For installing the apk file manually you need to enable unknown sources option. You can do so by going to settings>>security, scroll down to Unknown sources and enable it.

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