Android 6.0 + Root for Galaxy S4! [JDC Team]

android6.0-marshmallow-galaxys4

For those of you looking to experience Android 6.0 Marshmallow with full root, I have good news for you. There’s a ROM by the JDC Team (Jflte DevConnection Team) that can be installed on all AT&T, T-Mobile, Sprint, Verizon, Canadian, GT-i9505,GT-i9507, and GT-i9508 variants. (For AT&T and Verizon, you MUST have older bootloader with CWM or TWRP recovery installed!!!)

Based on Android 6.0 sources, this Android 6.0 ROM by JDC Team brings you the pure Android to your Galaxy S4.  This isn’t a CyanogenMod either so you will get all of the standard Android 6.0 features just like on a Nexus phone.

Performance is excellent and I have tested the battery life to be excellent especially with DOZE mode also working (that allows your phone to save ton more battery life on standby with Android 6.0).  Everything works out of the box including voice, data, bluetooth, etc..etc…  The camera works fine also except it sometimes force closes when switching back and forth between still and video recording but a simple restart of the camera app fixes the issue.

The only thing missing?  This ROM doesn’t support exFat format for microSD cards so make sure you format them as fat32 before using them.  Overall, this is actually one of the stable Android 6.0 ROMs I’ve tried on a non-Nexus device so definitely give it a test drive this week(end) and do let me know what you think!  But I think you will love it and finally experience Marshmallow!

What is a Custom ROM?

A custom ROM is a custom, modified operating system that you can install on your Android device. Basically it's like installing Windows OS on a Macbook. By installing a custom ROM, you can bypass stock factory settings like locked hotspot tether, install new Android versions early, or even convert your phone into another OS.

With a custom ROM, you can really maximize the capabilities of your smartphone by adding custom features that have been developed by open source developers.

How to Install Custom ROMs

First, you will need to root your device, if it is not rooted yet, follow our root tutorial and root your phone.

Once rooted, you should have TWRP installed on your phone. Installation of a custom ROM is easy if you learn the basic of it. If you don't know how to install custom ROMs using TWRP recovery, see our tutorial on How to Install Custom ROM using TWRP!

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31 Responses

  1. Nick says:

    So after installing this rom, I can access files on my sd card from “storage and USB” but when I connect phone to pc, sd card doesn’t show. I formatted sd card as fat32. Content on sd card such as photos and music don’t show in gallery and music.

  2. Mat says:

    Yup, I found the same issue – I guess this might have something to do with having to format the SD card as fat32. I also noticed that if I use a third party file explorer (i.e. ES File Explorer), then the SD card does not show up. Has anyone got any suggestions?

    Hopefully, this will be fixed in the next release, as otherwise the ROM works well!

  3. armand0 says:

    after installing this rom,I dont have a texting service and my mic doesnt work for google search.My bluetooth doesnt seem to work either

  4. Mat says:

    Hi armand0, just install the Messenger (the default SMS/MMS app from Google Play), but yes the mic for google search doesn’t work and nor does the bluetooth – I checked and these are know issues 🙁

  5. Wesley says:

    Max,

    I installed the Clockwork ROM Manager on my AT&T SGH-i337. Not the ‘touch’ version, just the 6.0.4.7, and now I’m getting an error ‘System software not authorized by AT&T has been found on your phone.’. This showed up when I clicked the button to create a backup ROM, now I’m not sure what to do 🙁

    Any help would be appreciated,

    Wesley

    • Wesley says:

      Well, after trying various button combinations to restart the phone, I managed to get it to boot with the old ROM and get past the security warning. I removed the Clockwork ROM Manager, and I finally have my phone back to where it started.

      I would say at this point it probably isn’t a good idea to attempt this install with a T-Mobile S4 🙁

      Until there is some positive feedback, I would warn other users to stay away from this software…

  6. Luis says:

    I send messages but i get the error that my messages didnt send but i asked the people who i sent text to if they got it they say they did but i still get “Failed to send’ error regardless i am on the sprint sphL720 model of s4

  7. Zaro says:

    Hello.
    This root will work with other 6.0 rom?

  8. Dustin D says:

    Google voice search and bluetooth not working either. Both things I use daily. Too bad because I liked this rom, guess i’ll restore back to my previous rom.

  9. Mark says:

    After several attempts to install went back to lollipop. Stayed in start up screen and wouldn’t start up.

  10. Ron says:

    Bluetooth and ext storage not working

  11. Joe Smo says:

    Bummer, could not get any SD card to be visible to apps. OS would see it fine but could not access files from any file browsing programs. Back to 5.1.1 until the GPE 6.0 comes out 🙂

  12. Gary N says:

    This rom isn’t working for my Sprint (SPH-L720) variant. I’m using CWM 6.0.4.4. The steps I’ve taken are:
    wipe data/factory reset (reboots phone) > wipe cache partition > format /system > format /data (reboots phone) > install Rom zip from sd card (succeeds) > install gapps from sd card (succeeds) > intall supersu beta from sd card (succeeds) > reboot system > no to fix root.
    I’m stuck in a boot loop here, so I enter recovery again and format /system as prompted to above and reboot the phone. Again, stuck in boot loop. I’d really like to try this rom, but I’m all out of ideas to get it working. Can anyone help me please?

  13. Serge says:

    I tried everything on my t-mobile GS4 to have this ROM installed. No way. I had my phone completely wiped but with no success. I reinstalled with stock ROM, rooted and tried again. Same result. I tried various different ROMs but installation does not go through. The only one I had installed but not working is ‘Wicked ROM’. Has anyone experienced an issue with t-mobile GS4 (4.4.2 or 4.4.4) that presvent any ROM installation?

  14. charlie says:

    Is everything working out of the box? google search voice? Will it work on the sprint edition? I have google 4.4.4 edition and everything works great except for the SD. I cannot get apps on the SD.

    • Sass says:

      Nope.. Don’t even bother in formating your SD to fats32..its the ROM. It will not recognize nor give you the option to move your apps…this Rom was a disappointment
      Go back to stock and get another Rom

  15. Sass says:

    Don’t download this ROM.. It’s filled with bugs… And Microsd isn’t recognized so therefore you can’t move app, it but even a option to move apps to sd .. Leaving you with less storage then the stock…. I had to go back to stock and install Resurrection Remix 6.0.1

  16. Hạn Vũ says:

    After the installation is complete, I noticed no application to the whole message.

  17. John Shot says:

    How can i get twrp or cwm? Which is btter on those 2? Help

  18. Salomon says:

    Hi Max, one noob question to you : if I unroot my s4, have I also automatically lost the custom recovery? Please I need the answer now!

  19. M.G. says:

    Hi, I’ve just flashed this rom,but for some reason i don’t have any sound when in docking station. I really need that.
    Can someone help me?

    Best regards,

    M.G.

  20. cocokasper says:

    Android 6.0 has killed the SD card that is NOT a problem with this rom. it’s an issue with Android M. Reading and writting to the SD is broken.. do a simple google search to show that issue.
    If you head over to the original thread at XDA… (link in OP) you can grab the most updated version of this Rom.
    A LOT has been fixed.

  21. Chad Bonv says:

    I really liked the basic interface of this rom, however, the microphone was an issue, The mic works great to make a phone call with, but, no apps make use of it. I tend to use a guitar tuner app on my phone and I could not with this rom, and that was the deal breaker, had to go back to stock rom. Please, before writing tutorials on how to install a custom rom, it may be a good idea to make sure there is full functionality along with it, and who knows, some may even be willing to part with some $ for it, plus, this rom was a real battery drainer……..

  22. Sam khan says:

    I have instaled this room 2 weeks ago on my GT-I9505 every thing working fine but i experiancing some issuess like wifi direct cant work and 4g LET icon cant appear please help i like this rom but need i

  23. Salomon says:

    Hi i cant move Pictures and videos från the device to the sd card.my device storage is full

  24. amanuel says:

    hey dude i have galaxy s4 at&t and im using safestrap recovery to install this custom rom but after i create a new slot i tried to wipe and mount it but after i swipe it kind of blackout for 3 seconds and pop up to the main menu again and i tried multiple times but its not working so i need your help bro. thanks in advance.

  25. I tried the ROM on SPH L720
    3 problems : SD Card + Camera + the phone gets hot.

    Maybe there is more problems ( I could not keep using the ROM anymore with those ones that I figured out )

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