Compared to all other Xperia phones of 2011, the Neo(MT15i) had smaller system, and data partitions. Which meant that the space available for the ROM, and internal memory was less. However, there is a method to increase this unjust lack of system, and data partitions. It is of common knowledge that Xperia Neo(MT15i), and Xperia Neo V(MT11) are almost similar to each other except for the camera hardware. The production of Xperia Neo had to be stopped due to the JAPAN earthquake. The 8MP lens used in  NEO was unavailable after the earthquake, so Sony Quickly replaced them with a 5 MP camera and launched it as Xperia NEO V. They also increased the system and data partitions in NEO V, which the NEO lacked. Since NEO V and NEO are exact same phones except for the camera lens hence it is possible to use the /system and /data partitions of NEO V on NEO by this following method:



  1. Make sure that all files are properly downloaded. Corrupted downloads can harm your device.
  2. Make a nandroid backup of your system, just in case.(If you are unsure of how to make a nandroid backup you may see this article)
  3. Navigate to the folder where you installed flashtools typically “C:/”. Go to the “/firmwares” folder, and place the downloaded ftf file in it.
  4. Open flashtools.
  5. Power down your phone.
  6. Insert the USB cable in your PC and press and hold the back button on the device while you connect your device to the cable.
  7. Notice that a green LED will be lit up on your device. This means that your device has entered flashmode.
  8. Now Press the “lightning” button in flashtools and select flashmode.
  9. Now, Select the options as shown in the image, and press ok to start the flashing process.
  10. Once the flashing is completed restart the device into recovery mode.
  11. In recovery mode go to advanced>>wipe Dalvik cache.
  12. Perform wipe cache partition followed by factory reset.
  13. Now go to backup, and restore, and restore from the previously created backup.
  14. Now reboot into system.
  15. You have successfully expanded the capacity of system, and data partitions.

Your partition capacities were somewhat like this before applying this mod:

neo before image

After the mod has been applied your partitions will look something like this:

neo after image

Observe the second column in both the images you’ll notice an increase in the capacity of system, and data partitions.

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  1. Main Ali
    Posted February 16, 2013 at 2:06 pm | Permalink

    “Now, Select the options as shown in the image, and press ok to start the flashing process.” where is image please?

  2. Main Ali
    Posted February 17, 2013 at 11:16 am | Permalink

    alright it works :D
    no need to change the selection options once in the flash mode :D
    just select the new ftf file that you placed in the friemware folder :D

    and if youre running cyanogen mod, then just flash in the boot image once again to access CWM and rostore your backup :)

  3. Vangelis Konidaris
    Posted April 14, 2013 at 9:35 am | Permalink

    Quick question: If i install this firmware (MT11) on my MT15i will i be able to take pictures at a resolution of 8MP or will 5MP be the limit? Thanks.

  4. Savvas SaXa
    Posted July 13, 2013 at 2:10 pm | Permalink

    my camera crashed and appears with red backround and it’s also vertical…

    • afwsl2003
      Posted August 18, 2014 at 11:49 pm | Permalink

      Did you replace the ROM with a Neo V ROM ?
      After partitioning the file system as mentioned above, use a Neo (Hallon) ROM instead of the Neo V (Haida) ROM …

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