[MOD] MultiROM for Xperia SP

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ervinakoc x

Senior Member
Apr 18, 2015
I Have Restore My Aosp Rom As Secondary Rom in External Sd Card But The Rom Doesn't Show In Multirom Menu. Only CM13 ROM Installed Shows Up In Internal Memory! What To Do? Thank You
Last edited:

ervinakoc x

Senior Member
Apr 18, 2015
I Have Restore My Aosp Rom As Secondary Rom in External Sd Card But The Rom Doesn't Show In Multirom Menu. Only CM13 ROM Installed Shows Up In Internal Memory! What To Do? Thank You ANY HELP??????


Senior Member
Oct 7, 2014
I installed multirom kernel , but now I want to flash helium kernel and come back to single rom, How can I do that ?

sorry for bad english


Senior Member
Sep 26, 2014
Multirom stole 1GB of my internal memory by "preparing zip file" (installs roms on sdcard) and dont know how to racover my lost space

That's temporarily used space, which will be freed after the ROM has been successfully installed. Multirom does all of it's work in Internal under 'multirom' folder. So check how much space does it occupy.

I didn't encounter such situations. Using MultiROM since several weeks.


Senior Member
Aug 24, 2010
Solid Explorer shows empty folder, without hidden files, and I cant delete this folder. I think reflash main rom is the best solution here


Senior Member
Aug 24, 2010
It is multirom fault, because it hangs at "preparing zip file". Yesterday I have been tried restore nandroid backup but it goes wrong with error when restoring data. So already I have clean main system and 4,8GB/5,3GB used in internal memory without anything special on it
Hi guys,
I was wondering if could I update a secondary ROM without deleting it first, let's say dirty-flashing the new one?
Because I've tried entering the rom folder and using "install zip" option, but I receive an error message that say that I doesn't have enough space to install the zip (I've ~1700Mb free and the message sais that I need at least 551Mb free)


Recognized Developer
Dec 22, 2009
Hi guys,
I was wondering if could I update a secondary ROM without deleting it first, let's say dirty-flashing the new one?
Because I've tried entering the rom folder and using "install zip" option, but I receive an error message that say that I doesn't have enough space to install the zip (I've ~1700Mb free and the message sais that I need at least 551Mb free)

Of course.
Problem is that you need that free space in the internal storage,
it expands itself into data & moves to MicroSD after that,
a bit annoying but you get used to it after all.
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Senior Member
Jul 28, 2015
Hi I'm Rookie On Multirom Can Any One Tell me how can I install multirom and th. en install cm 13 mm as a second rom my current rom is 4.3 jb build 205 please helping me

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    MultiROM is one-of-a-kind multi-boot mod. It can boot any Android ROM as well as other systems like Ubuntu Touch, once they are ported to that device. Besides booting from device's internal memory, MultiROM can boot from USB drive connected to the device via OTG cable. The main part of MultiROM is a boot manager, which appears every time your device starts and lets you choose ROM to boot. You can see how it looks on the left image below and in gallery. ROMs are installed and managed via modified TWRP recovery. You can use standard ZIP files to install secondary Android ROMs and MultiROM even has its own installer system, which can be used to ship other Linux-based systems.

    * Multiboot any number of Android ROMs
    * Restore nandroid backup as secondary ROM
    * Boot from USB drive attached via OTG cable

    You can also watch a video which shows it in action.


    It _is_ dangerous. This whole thing is basically one giant hack - none of these systems are made with multibooting in mind. It is no longer messing with data partition or boot sector, but it is possible that something goes wrong and you will have to flash factory images again. Make backups. Always.

    Manual installation
    Firstly, there are videos on youtube. If you want, just search for "MultiROM installation" on youtube and watch those, big thanks to all who made them. There is also an awesome article on Linux Journal.

    MultiROM has 2 parts you need to install + one optional (deprecated) :
    • MultiROM (multirom-YYYYMMDD-v33x-device.zip) - download the ZIP file from second post and flash it in recovery.
    • Modified recovery (multirom-YYYYMMDD-recovery-fota-device.zip) - download the ZIP file from second post and use a recovery
      to flash it into the FOTA partition (see TWRP 3 thread for more informations).
    • DEPRECATED: Patched kernel - You can use those kernels on most Marshmallow and Lollipop based primary ROMs to add kexec boot support.
      Be aware that those patchers will be updated when possible after kernel sources updates
      Kexec support no longer required thanks to the no-kexec workaround by nkk71.
      For convenience reasons, I enabled the workaround by default if kexec is not found.
    You current rom will not be erased by the installation.
    Download links are in the second post.

    Adding ROMs
    1. Android
    Go to recovery, select Advanced -> MultiROM -> Add ROM. Select the ROM's zip file and confirm.

    Recommended values are :
    • Cache : Keep default value
    • Data : Minimum 4000
    • System : 1000 is enough for most installs

    Using USB drive
    During installation, recovery lets you select install location. Plug in the USB drive, wait a while and press "refresh" so that it shows partitions on the USB drive. You just select the location (extX, NTFS and FAT32 partitions are supported) and proceed with the installation.
    If you wanna use other than default FAT32 partition, just format it in PC. If you don't know how/don't know where to find out how, you probably should not try installing MultiROM.
    If you are installing to NTFS or FAT32 partition, recovery asks you to set image size for all the partitions - this cannot be easilly changed afterward, so choose carefully. FAT32 is limited to maximum of 4095MB per image - it is limitation of the filesystem, I can do nothing about that.
    Installation to USB drives takes a bit longer, because the flash drive is (usually) slower and it needs to create the images, so installation of Android to 4Gb image on a pretty fast USB drive takes about 20 minutes maximum.
    Enumerating USB drive can take a while in MultiROM menu, so when you press the "USB" button in MultiROM, wait a while (max. 30-45s) until it searches the USB drive. It does it by itself, no need to press something, just wait.​

    Updating/changing ROMs

    1. Primary ROM (Internal)
    • Flash ROM's ZIP file as usual, do factory reset if needed (it won't erase secondary ROMs)
    • Go to Advanced -> MultiROM in recovery and do Inject curr. boot sector.
    • OPTIONAL: Reflash the kernel patcher to add kexec support
    2. Secondary Android ROMs
    If you want to change the ROM, delete it and add new one. To update ROM, follow these steps:
    • Go to Advanced -> MultiROM -> List ROMs and select the ROM you want to update.
    • Select "Flash ZIP" and flash ROM's ZIP file.

    Explanation of recovery menus

    Main menu
    - Add ROM - add ROM to boot
    - List ROMs - list installed ROMs and manage them
    - Inject boot.img file - When you download for example kernel, which is distrubuted as whole boot.img (eg. franco kernel), you have to use this option on it, otherwise you would lose MultiROM.
    - Inject curr. boot sector - Use this option if MultiROM does not show up on boot, for example after kernel installation.
    - Settings - well, settings.

    Manage ROM
    - Rename, delete - I believe these are obvious
    - Flash ZIP (only Android ROMs) - flash ZIP to the ROM, for example gapps
    - Add/replace boot.img - replaces boot.img used by this ROM, this is more like developer option.
    - Re-patch init - this is available only for ubuntu. Use it when ubuntu cannot find root partition, ie. after apt-get upgrade which changed the init script.​

    Source code

    MultiROM available for Huashan also thanks to :
    - [MENTION]Tasssadar[/MENTION]
    - The XperiaMultiROM team
    - The MultiROM HTC team
    - [MENTION]Arvind7352[/MENTION]
    - [MENTION]nkk71[/MENTION]​

    XDA:DevDB Information
    MultiROM for Xperia SP, Tool/Utility for the Sony Xperia SP

    Adrian DC
    Source Code: http://forum.xda-developers.com/google-nexus-5/orig-development/mod-multirom-v24-t2571011

    Version Information
    Status: Stable

    Created 2016-04-03
    Last Updated 2017-06-07


    1. Main downloads

    Xperia SP (Huashan): https://mega.nz/#F!mpMATaJa!gGshpOwYueKdK0bu6YSNUg

    MultiROM: multirom-2017MMDD-v33x-device.zip
    Modified recovery (based on TWRP 3): multirom-2017MMDD-recovery-fota-device.zip

    OPTIONAL: Kernel w/ kexec-hardboot patch (msm8960t Marshmallow based): kernel-2016MMDD-device.zip
    If used, kernel with kexec-hardboot patched needs to be only in your primary ROM!
    No longer required thanks to the no-kexec workaround.

    OPTIONAL: MultiROM installed as a secondary "ROM": multirom-2016MMDD-recovery-secondary-device.zip
    Mostly meant to be used for Stock ROMs users and devs. Only use as secondary ROM to flash.​

    2. Third-party kernels with kexec-hardboot patch
    * None, and do not use any that would have it until the kernel is ready

    Nicely ask your kernel developer to merge kexec-hardboot patch.​

    3. Uninstaller

    MultiROM uninstaller: Unavailable due to the already considerable SONY ELF format port
    Reflash a ROM or a boot.img without injection (or the v33x zip) to remove MultiROM bootimage from your device.
    Then delete the "multirom..." folders from internal & external storages.
    If you don't want MultiROM menus in recovery, re-flash a normal TWRP, but it is not needed,
    those menus don't do anything if MultiROM is not installed.

    How to install for the first time

    • Flash the 2 MultiROM zips as explained
    • Reboot to the FOTA Recovery (Volume +)
    • In MultiROM TWRP, Add a ROM, set everything properly
    • Wait for the ROM to be installed (can take a while)
    • In MultiROM screen, choose the ROM location
    • For the concerned ROM, "Flash zip" for wished zips (GApps, SuperSU, Addons...)
    • Reboot the phone

    MultiROM v33x - TWRP 3.2.1 - 21/01/2018
    * Merged TWRP 3.2.1 updates into MultiROM TWRP
    * Improvements for Android 8.1 support
    * Improvements [URL="https://www.xda-developers.com/rest-in-peace-xda-recognized-developer-nkk71-has-passed-away/"]made with nkk71, RIP[/URL] >> [URL=https://www.xda-developers.com/rest-in-peace-xda-recognized-developer-nkk71-has-passed-away/#comment-3719128510]Comment[/URL]
    MultiROM v33x - TWRP 3.1.1 - 01/11/2017
    * Improvements for Android 8.0 support
    * Improvements for SDCardFS support
    * Improvements from secondary ROMs handling
    * Changes on the boot UI's Android ROM icons
    MultiROM v33x - TWRP 3.1.1 - 07/06/2017
    * New implementation to handle external boot
       on Ext4 / F2FS MicroSD or USB Drive in order
       to allow access to the external storage for media,
       through the storage 'external_multirom' path
    MultiROM v33x - TWRP 3.1.1 - 17/05/2017
    * Include all recent improvements from TWRP 3.1.1
    MultiROM v33x - TWRP 3.1.0 - 03/05/2017
    * Upstream updates from recovery and sources
    * Fix for the offline charger detection mode
    MultiROM v33x - TWRP 3.1.0 - 12/03/2017
    * Include all recent improvements from TWRP 3.1.0
    MultiROM v33x - TWRP 3.0.3 - 05/03/2017
    * Built in a clean new tree of Android 7.1.1 (replaces 6.0)
    * Multiple fixes to support 7.1 changes
    * Include all recent improvements from TWRP 3.0.3
    * Fix the 7.1 busybox cpio corruption, needed for MultiROM
    MultiROM v33x - 18/12/2016
    * Minor improvements of MultiROM
    * Improved versioning with header showing build date
    * libbootimg changes from my recent updates
    MultiROM v33x - 17/10/2016
    * Improve autobooting to external ROM (MicroSD / USB)
    MultiROM v33x - 18/09/2016 - 24/09/2016
    * Updated to no-kexec workaround v4 by nkk71
    * Autoboot accessible for external / MicroSD
    MultiROM v33x - 16/08/2016
    * Add support for the new ramdisk structure with init.real
    MultiROM v33x - 14/06/2016 - 15/07/2016
    * Support for hardware keys (Volume +/- & Power)
    MultiROM v33x - 06/06/2016
    * Support for Stock SONY ROMs added
    MultiROM v33x - 23/05/2016
    * MultiROM UI dimensions completely fixed
    * Access to MultiROM color themes and Shutdown
    MultiROM v33x - 11/05/2016
    * Support for no-kexec workaround to boot ROMs
    MultiROM v33x - 15/04/2016 - 09/05/2016
    * Improved UI with unified Internal / External ROMs in one tab
    MultiROM v33x - 03/04/2016
    * Initial release with full SONY ELF port and dual ramdisk support

    Kernel patchers :
    23/04/2016 - 06/06/2016
    * Updated to latest sources, standalone kernel without modules
    * Deprecated, releases abandoned.
    06/04/2016 - 15/04/2016
    * Updated to latest CM-13.0 & CM-12.1 stable kernel status
    * Initial huashan release, unstable kernel for the moment

    Recent ROMs tested so far :
    LineageOS 14.1 : OK (Primary & Second)
    AOSP 7.1 : OK (Primary & Second)
    AOSP 7.0 : OK (Primary & Second)
    CyanogenMod 12.1 : OK (Primary & Second)
    CyanogenMod 13.0 : OK (Primary & Second)
    CyanogenMod 14.1 : OK (Primary & Second)
    AICP Marshmallow : OK (Primary & Second)
    AOSP-CAF Marshmallow : OK (Primary & Second)
    AOSP-OMS Marshmallow : OK (Primary & Second)
    AOSP-RRO Marshmallow : OK (Primary & Second)
    Sony 4.3 based ROMs : Normally OK (Primary & Second)
    eXistenZ Ultra 4.0.0 : OK (Primary & Second)
    Warning : If using old ROMs as secondary, primary ROM
    should not have F2FS filesystems for Data and Cache
    Other ROMs : To confirm & report here

    FAQ and other notes
    About security
    In order to make multi-booting possible, MultiROM has to sacrifice some security measures. Firstly, on secondary Android ROMs, /system is not mounted read-only. While there are other things preventing malicious software from messing with /system, this might potentialy make it easier for such software to attack that system.
    Next, MultiROM doesn't work with /data encryption. Not many people who use custom ROMs also use encryption anyway, so that isn't much of a concern.​

    What do the ROMs share?
    All ROMs are separate, except /sdcard, which is shared between all Android ROMs.​

    Why is my USB connection to computer not detected ?
    Uncheck the "Enable ADB" option in MultiROM Settings.​

    How many ROMs can I have?/Where are the ROMs stored?
    You can have as many ROMs as you can fit in your /sdcard. All the ROMs are stored in /sdcard/multirom/roms or on an USB drive./external SD card. This folder is unaccessible in Android, to prevent mediascanner from scanning it. You can either in recovery, or obtain root and go to /data/media/0/multirom/roms.

    Can I have different versions of Android working alongside

    The menu with all the ROMs won't show up during boot, how to fix it?
    Either re-flash the MultiROM zip or go to recovery, Advanced -> MultiROM -> Inject curr. boot sector.

    The reason for this is that something rewrote your boot.img, which happens for example when you flash a kernel. MultiROM's boot menu is part of the boot image, so it has to be added into it again.​

    The installation fails with "trampoline not found -1"
    Often the issue appears because the ROM zip has a nested zip for rooting methods.
    Best solution is to remove the root zip from the ROM and flash it separately later.​

    Something wrong happened, I lost something or it's really laggy
    You have been warned about making backups & the fact this is more experimental than stable.
    You alone will be responsible for loosing data or having an usable ROM when you really needed it.

    Everyone in this thread will try to help you, but we can't do backups of your data ourselves.
    Thanks for your understanding, remember to read the previous comments and please try to help each other.

    Current local manifest of the MultiROM build
    <!-- https://github.com/AdrianDC/multirom_development_sony -->
    And no, this is not an april fools joke. ;)
    MultiROM released with new TWRP UI & full no-kexec workaround support by nkk71, read more about it here.
    Patching the kernel is therefore no longer required, MultiROM is now fully autonomous.

    It means you can flash a ROM with the Install Zip menu, check "Inject MultiROM...", and that's all you have to do.

    Important : In Recoveries or anywhere else, if for any reason on reboot the device stays on,
    you can try plug in/out the USB cable, if not, you can use the new KeyReset implementation I added to the kernel :
    Pressing both Volume + and Power about 5 seconds will properly reboot the device directly.
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