Android Custom ROM

Sony Xperia Z5 Marshmallow Custom ROM – ROMX ULTIMATE

Sony Xperia Z5 Marshmallow Custom ROM – ROMX ULTIMATE

ROMX Ultimate is a massive performance guaranteed ROM ported from Sony Xperia XZ. The Rom is also very Stylish and loaded with incredible features. It also included with a good sound quality and better camera performance. New boot animation, new System UI and many more.


Sony Xperia Z5 Marshmallow Custom ROM – ROMX ULTIMATE

Sony Xperia Z5 Marshmallow Custom ROM - ROMX ULTIMATE
Sony Xperia Z5 Marshmallow Custom ROM – ROMX ULTIMATE



ROM Description


ROM Version: 1.0

ROM OS: Marshmallow

OS Version: 6.0

ROM Base: AOSP/Xperia Z3 Stock

ROM Kernel: Linux 3.4.10

ROM Status:  Stable

ROM Size: 1.1 GB

ROM  Language: English/ Multi language supported


ROM Features

  • Systemless Root
  • Extremely Fast App Launch times (Over 20% improvement!)
  • Extreme Graphics performance (+5 fps in Antutu 3D Bench)
  • Great Battery Life, 30% Screen On Time improvement
  • Zach’s Kernel
  • Xperia X SystemUi
  • EXTREME LOWLIGHT CAMERA,DESTROYS Xperia X and competes with S7
  • Xperia X Boot Animation
  • Renamed ‘6.0’ to ‘6.0.1’ so that you can now brag about how you have ‘6.0.1’
  • Xperia X Camera and Sound processing
  • Comes with Overclocked kernel(V2.2>)
  • Supports up to 2.2Ghz Overclocks
  • Xperia X Display processing(1.4 and above)
  • All the goodies that come with ROMAUR:
  • MultiWindow
  • Compatible with Xposed Framework
  • Xperia X apps( V1.3 and above)
  • Reduced Thermal Throttling (1.2 and above)
  • Android N emojis
  • Kernel DRM Patch
  • Settings app overhaul


Known Bug

  • Information not available


ROM Screenshots



Rooting or flashing custom ROM’s results to the void of the warranty of the device. (We) RaphsonBD and its authors will not responsible for bricked devices or any damage which is incurred in the process of flashing custom ROM’s or rooting the device. We highly advice to take a backup of your device prior to performing the process. Please do some research if you have any concerns about features included in this ROM, before flashing it! You are choosing to make these modifications. Nevertheless if you need any help, just comments already. We will always pleased to help you.



You might need to unlock your phones bootloader, otherwise the custom ROM would not be no use of you. If you haven’t unlocked your Bootloader yet, Click Here to unlock it now.

You must need a Rooted android device and installed Custom recovery to use a Custom ROM 


ROM Downloads

To Use  Sony Xperia Z5 Marshmallow Custom ROM – SlimX Reborn Download the ROM file from bellow link


How to install Custom ROM in Sony Xperia Z5

  1. If you are on E6603 or E6633 choose E6653 or E6683 during flash respectively.
  2. At first Download the ROM and copy the ROMX  file in SD-card.
  3. Then Download your required SIM patch file (single or Dual) from the download link given above and put that in the sd card.
  4. It’s wise to backup your Current ROM, no matter how confident or experienced you are. So anything happen unpleasant you can retrieve back your old ROM
  5. If you don’t know how to backup ROM using Custom Recovery then Click Here
  6. Then Go to phone’s custom recovery mode. Almost Every phone by pressing Power button + Volume up button all together you can access your phone recovery options. If you don’t know how to go your specific device’s recovery option, just search on google. Here an example: “recovery mode Sony Xperia Z5”
  7. After successfully entering the Custom Recovery Option (CWM/TWRP) first & foremost take a backup up of your current ROM. Select “Backup” 》Select storage 》 backup process may take 5/7 minutes.
  8. Than Wipe DataWipe Cache Partition, Wipe Dalvic Cache (You shall find it in Advanced option).
    After formatting Cache go to Mount and StorageFormat Data, Format System.
  9. Than come back to main menu of CWM/TWRP whichever Custom recovery you’re using.
  10. Just Click install the ROMX  from SDCARD.
  11. Now reboot the phone. First boot may take upto 30 minutes. If you face bootlooping, please flash the rom freshly again.
  12. Voila and enjoy the taste Sony Xperia Z5 Marshmallow Custom ROM – ROMX Ultimate


For Dual SIM Users

  1.  Flash the ROMX ROM of single SIM given above.
  2. After flashing successfully, reboot the phone and reboot it too recovery mode again.
  3. Now, Download the Dual SIM Converter from the download link given above, flash it.
  4. Download compatible kernal for your phone from Here
  5. Reboot your phone. The job is done. 🙂


How to Make Your Device Like Xperia X

  1. Flash The Rom
  2. Boot up
  3. Press and hold on the home screen and click on themes
  4. Click Agree
  5. Select your preferred theme



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