How To Install Android Lollipop 5.1.1 On Galaxy Mega 5.8 I9152

Google has rolled out Android 5.1 Lollipop for its recent flagship devices. Samsung and other manufacturers are still struggling to roll out Android 5.0 Lollipop for some of their devices. Samsung has rolled out the update for its top of the line smartphones, but a huge audience that owns mid-range and budget Galaxy devices may be still waiting for a good news from Samsung, which is unlikely to come out. Galaxy Mega, one of its-own-kind device introduced by Samsung a few years ago ran on Android Jelly Bean out of the box and received KitKat later on. The device does have some nice hardware specifications, but the users may be a bit disappointed after coming to know that this device won’t be receiving Android Lollipop.

If you’re a Galaxy Mega 5.8 owner and you still want to update your device to the latest iteration of Android, a custom ROM maybe a choice for you. By means of a custom ROM, you can have the taste and feel of pure Android Lollipop firmware. The one we have found for you is the most popular, CyanogenMod. CyanogenMod 12.1’s unofficial builds have started landing on development forums, and Galaxy Mega 5.8 happens to be one of the lucky devices to get this ROM very early. All basic features of the phone are found to be working in this ROM, there maybe minor bugs as we can’t guarantee the complete functionality of this ROM. Apart form the CyanogenMod 12.1 ROM, we have also mentioned the well known Resurrection Remix ROM , which is also quite stable and offers unofficial Android 5.1.1 Lollipop for the Galaxy Mega I9152. Let’s go ahead and pick up your desired custom ROM and install unofficial Android 5.1.1 Lollipop on your beloved Galaxy Mega 5.8 GT-I9152.Samsung-Galaxy-Mega-5.8-front

Early Preparations

  1. This ROM is only for Samsung Galaxy Mega Dual GT-I9152. Do not try this on any other device, please check your device’s model in Settings > About Device > Model.
  2. Your device must have a custom recovery installed, in case you’re missing it you may Follow our full guide here to install TWRP 2.8 recovery on your Galaxy Mega 5.8.
  3. Your device’s battery should be charged at least over 60%. This is highly recommended in order to prevent any power issues during the flashing process.
  4. Make sure that you backup your important media content, ContactsCall Logs Messages. This is highly recommended just in case something goes wrong and you need to reset your phone.
  5. If you already have rooted your device, use Titanium Backup to back up all your important apps + system data.
  6. Also if you are using a custom recovery, it is recommended that you backup your current system using that first. [Just for the sake of safety]. Here’s our full Nandroid Backup guide.
  7. You will have to go through Data Wipes during installation of this ROM, so make sure that you have backed up all the mentioned data.
  8. Make an EFS backup of your phone before you flash this ROM.
  9. You need enough confidence to flash this ROM.
  10. Alright! Go ahead and flash the custom firmware, follow this guide to the letter.

Disclaimer: The methods involved in flashing custom roms and rooting your phone are highly custom and may result in bricking your device, and has nothing to do with Google or the device manufacturer that is SAMSUNG in our case. Also rooting your device will void its warranty and you will be no longer eligible for any kind of free device services by the manufacturers/warranty providers. In case of any mishap we may not be held responsible. Follow these instructions to the letter to avoid any mishap or bricking. Make sure that whatever you do, you are doing it at your own responsibility.

How To Install Android 5.1.1 Lollipop On Samsung Galaxy Mega I9152 Using A Custom ROM

  1. Download custom ROM according to your choice.
    1. cm-12.1-20150510-UNOFFICIAL-i9152.zip  [CyanogenMod 12.1]
    2. Resurrection_Remix_LP_v5.4.5-20150518-i9152.zip
  2. Download Gapps.zip file for Android Lollipop.
  3. Connect your phone to your PC now.
  4. Copy the both the .zip files to the storage of your phone.
  5. Now disconnect your phone and turn it off complete.
  6. Boot into TWRP recovery now, in order to do so, turn it on by pressing and holding Volume Up + Home Button + Power Key. You should see the recovery mode in a while.
  7. Now in TWRP  recovery, wipe cache, factory data reset and advanced options > dalvik cache.
  8. After wiping all these three, select “Install” option.
  9. Now select “Install > Choose Zip from SD card > Select custom rom.zip file > Yes”.
  10. This will flash the ROM in your phone, once done get back to the main menu in recovery.
  11. Now once again select “Install > Choose Zip from SD card > Select Gapps.zip file > Yes”
  12. This will flash the Gapps in your phone.
  13. Reboot your device.
  14. You should see the Android 5.1.1 Lollipop running on your device in a while.
  15. That’s all!

First boot may take up to 10 minutes, you may not worry if it’s taking that much long. In case it’s taking too long, you may boot into TWRP recovery and wipe cache and dalvik cache and reboot your device as it may fix the issue. In case your device is having issues, you may return to your old system using the Nandroid backup or follow our guide here to install stock firmware.

Got any queries? Reach us out through the comment box below.

Credits: GHsR | Kiborg_Man

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  • Arif Mphe

    try to install supersu with odin,,,,

    • Darpa Narayan S

      its not working..
      tried it thrice but everytime i’m receiving the following error message “failed to verify whole-file signature

      • @darpanarayans:disqus Which custom recovery are you using?

  • rohit Chauhan

    It seems little difficult to do these all steps and sometimes it is getting failed.
    Please tell me the easiest way to update for lollipop. I am using samsung mega I9152.

    • THIS IS THE ONLY WAY TO GO TO LOLLIPOP. Can’t you follow simple steps? If you cannot then don’t bother with Lollipop. If you are trying to follow the steps and you are having a problem, why can’t you just say at what step you are failing? How can anyone help you if you can’t do that???

      • rohit Chauhan

        But when i am trying to root it ,,it is failed..and i am bored while using jelly bean.plz help me me out to upgrade it in lollipop.

        • @disqus_QhFF0QrUvh:disqus what error are you exactly getting?

  • Arun Mor

    Try to install supersu with odin

  • Arun Mor

    Play store not working after installation
    This rom

  • Step 7 is INCOMPLETE! You are suppose to also wipe SYSTEM and DATA partitions as well!

    • @cvangelo:disqus nope, performing a factory reset in a custom recovery will do the job for you. Wiping System and Data partition isn’t necessary.

  • There is an Early Preparation Step MISSING! Some Samsung phones have a locked bootloader depending on the operator. You need to UNLOCK YOUR BOOTLOADER before you try to flash the ROM. This ROM can only work with an UNLOCKED bootloader! If you do not unlock the bootloader, you will not be able to flash the ROM on phones where the bootloader is locked.

    • @cvangelo:disqus usually carriers lock their devices, and carriers do not go with the generic variant of the device. you will find the I9152 variant unlocked all across the world.

      • Lawrence Mulei

        can’t get galaxy apps after installing the software, why?

        • @lawrencemulei:disqus this is a custom software. It doesn’t have stock applications.

          • Lawrence Mulei

            is it possible to reinstall back the original 4.2 android, i want to use gear s and it can not be accepted on this operating system.

          • Lawrence Mulei

            is it possible to reinstall back the original 4.2 android, i want to use gear s and it can not be accepted on this operating system.

          • @lawrencemulei:disqus yes it is. You can use this guide to do so: http://techbeasts.com/2015/07/26/how-flash-stock-firmware-samsung-galaxy-odin/

  • jaya prakash

    All GApps not working it says unfortunately app has been stopped if i press ok again and again show the same error im not able to use other apps also

  • Ashutosh Roy

    hi.. i am facing the same issue as jaya prakash. After flashing with Gapps Stock Modular Package For Android 5.1.x Lollipop and then rebooting the system, it says unfortunately google apps have stopped working and click “Ok”. This keeps on repeating and can’t pass this through. Please help.

    • @disqus_dtFlbLCOPA:disqus Try flashing a different GApps package and then wipe cache and dalvik cache. Check if it works after doing this or not.

  • subham

    thanx i have succesfully done it and every thing was good..now my galaxy mega5.8 is having lolipop

  • Anwar Patel

    i am not getting advance option while wiping and error occur while wipe cache

    • dara

      yes. me too need anyone help

      • @anwar_patel:disqus If you’re not getting advanced option, check if you have “Wipe” option. In TWRP, there’s a Wipe button that has all the options.

  • altaros kron

    i have a samsung galaxy mega 5.8 gt-i9150, is there any difference between them??, besides the dualsim of the i9152.

    • @altaroskron:disqus yes there is, the method listed above won’t work for I9150.

  • JimyP

    Two major flaws I see right now on my Mega 2 Lolipop 5.1.1 update:
    1. When receiving new texts, my screen wakes up but it leaves no message (“new messages”) on the screen. So if I didn’t see the screen wake up for a few seconds, I actually have to input the passcode and then go into the app to see if I have any texts. Awful!! I stopped using WhatsApp in the last update because I stopped receiving such messages. This is a major fault, not just a glitch, due to the importance of texting for most people.
    2. Battery life – it’s now horrible!

    Anyone else having these problems?

  • JimyP

    Two major flaws I see right now on my Mega 2 Lolipop 5.1.1 update:
    1. When receiving new texts, my screen wakes up but it leaves no message (“new messages”) on the screen. So if I didn’t see the screen wake up for a few seconds, I actually have to input the passcode and then go into the app to see if I have any texts. Awful!! I stopped using WhatsApp in the last update because I stopped receiving such messages. This is a major fault, not just a glitch, due to the importance of texting for most people.
    2. Battery life – it’s now horrible!
    Anyone else experiencing either problem?

  • Karthikeyan

    I gave install for that 5.0 zip file…but it shows error…please tell what i have to do?

    • @disqus_MVDUumYj4U:disqus what error are you getting? And what custom recovery are you using?

      • Vin D

        hello i have done all the mentioned procedures but when i want to boot into TWRP recovery by pressing volume up+home+power, there is no recovery option is showing on the screen.please tel me how can i install lollipop. I have rooted my device already.

  • Gaga’erskie Villasin

    Still theres no update on galaxy mega 5.8here in the philppines

  • Sufyan butt

    after the update my mobile charges very slow

  • Abhaydas Dam’O’dar

    Working Fine…… 🙂
    But SB Game Hacker Is Not Working In CyanogenMod,When I Rooted My GTi9152
    Please Help Me……..

  • Muammar Raihan

    i have a problem in recovery install, it wont appear, after i install & i turn off my phone then i press 3 buttons again and the phone come back from the beginning

  • Jo Natan

    link’s dead for cm12

  • @ervhint:disqus can you please show me a screenshot?

  • Don Miller

    Upgraded a Samsung GT-I9152 from 4.2.2 to 5.1.1 per the
    above code (http://techbeasts.com/install-android-lollipop-511-galaxy-mega-58-i9152/).

    All default apps have worked, including out&In
    AT&T cellular calls, and Wifi services. However, both Uber and Lyft both
    respectively advise “No cell connection. Try Moving your vehicle to an
    area with better coverage.” and network Issue Could not complete the
    action due to poor connectivity”.

    Despite cell strength showing at least 4 or 5 bars? Any
    suggestions before I take a full retreat?

    • @disqus_BOpEZR3Oit:disqus I’m sorry to say that I’m completely clueless about this issue as this is a custom ROM. Had it been an official ROM, we must have figured it out. You’re on your own when it comes to a custom ROM.

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