How to Update SONY Ericsson Xperia RAY with Official ICS 4.0.3 Firmware

xperia RAY LogoGood times return for the users of SONY Ericsson Xperia Ray as in the due course of this article we will be checking out on how you can easily apply the update of ICS 4.0.3 release. Please note that SONY has already pushed this update for some select countries but since it’s not yet pushed for all the countries, one can easily apply this update manually by following the instructions mentioned below. Please note that we request you to follow all the instructions mentioned in this article so that the device is updated successfully.

Since this is the manual way of updating, the warranty may get void but not to worry as warranty can be reclaimed since the update is the official one. The latest official update by SONY for RAY is dubbed as 4.1.A.0.562. This update is a global release and anyone with their SONY Xperia Neo V can apply this update, the only condition is that the device should not be the network locked device or else it will brick the device.

Disclaimer: Neither we, nor developer should be held responsible for any damage happened to your device in the process of following the instructions mentioned in this article. It’s very unlikely that there will be any issues but just in case if at all there are any issues then we are committed to help you in solving the same.

Note: This article should be only applied to the phones which are dubbed as SONY Ericsson Xperia RAY and not to any similar handsets. If this update is applied to any other phone then it may brick the device.

Rooting Information: Just in case if your device is rooted, after applying this update the root access will get void. Just in case if you wish to root the device, we will very soon come up with an article which will help you to root the same.

Pre Requisites:

  • All the data like SMS, Contacts, Call log, APN, MMS Settings and other data present in your internal SD should be backed up so that just in case if the data gets erased or corrupted, the same can be restored with the help of below mentioned steps. Remove the SIM card as well as SD Card from your phone as its recommended to remove the same.

SMS – Use “SMS Backup & Restore app”,
Contacts – Sync with the Gmail application,
Call Log - Call Log and Restore
Images, Songs, Videos, Files – Copy to internal / External SD Card,
APN and MMS Settings – Note down from the path “Applications > Settings > Wireless and Network > Mobile Networks > Access Point Names

  • Disable all the antivirus suites in your computer and uninstall the same in your device as these tools generally tend to interrupt the process of firmware update.
  • Minimum charge left in the device should be at least 60% so as to ensure that device doesn’t get turned Off in the middle of firmware update.
  • Enable the USB Debugging in your SONY Ericsson Xperia RAY from the path “Settings > Applications > Development > USB debugging”. The USB Debugging option should be ticked as shown in the below screen capture. (Below image is just for Illustration and may differ in your device).

USB Debugging

So assuming that you have followed all the instructions mentioned above, you can now proceed to the next page where we have mentioned a detailed tutorial on how to apply this update.

  • tomilee

    do the battery last longer than the version of 2.3.4?

    • Pradeep Neela

      yes battery enhancements are made in this

  • patrick


  • patrick

    How to upgrade my phone xperia ray from phone

  • patrick

    How to upgrade my phone xperia ray phone

  • gomez

    what drivers ?

    • Pradeep Neela

      yes you can install from the SONY’s official website

  • Vijay D

    Hello Pradeep

    I am trying to upgrade the OS for Sony Xperia Ray. At the time of flashing, the buck stops at
    29/053/2012 14:53:55 – INFO – Android version : 2.3.4 / kernel version :
    and a pop up window is appearing with the 4 options
    1 – Unplug the device
    2 – Power off the device
    3 – Press the back button and hold it
    4 – Plug the USB cable

    its been 10mins since I hooked up the mobile for flashing, but cannot see anything further. Does it take longer time? Do I have to follow the above 4 options now?
    Please advise.

  • rc

    Dont forget to install drivers first,TOP JOB

  • Shankarregmi

    shit my phone bricked,, oh god what to do

    • Pradeep Neela

      what you did?

    • Pradeep Neela

      what you did?

  • john

    worked perfect on my xperia ray! you need to hold the volume down key instead of the back button!

  • john

    would this work on a somy ericsson x10?

    • Pradeep Neela

      it doesnt work on x10 as its just for ray

  • Faha Mohammed44

    i did not under stand about the power off and the back button

  • Faha Mohammed44

    i did not under stand about the power off and the back button

  • imraan

    Hey iv successfully installed n it worked for a while but now it crashed after playing a game.. So is there anyway to remedy it? Or install my stock 2.3.4 again? My phone goes on then works for 5secods then freezes on homescreen.. What shuld I do?


    I UPGRADED MY SE ray phone with ICS 4.03 which i bought a month ago after that, i end up heaps of problems.

    – Occupy’s more RAM memory

    I tell you guys don’t update xperia ray mobile with ICS 4.03…this is my last SE phone and will never buy Sony Ericsson again. I chatted with customer service, she asked me to follow a link and connect the phone, it doesn’t work and still the same story.

    When i asked customer service -Sony Ericsson for a solution to fix the above problems, they themselves do not know what to do…..

    I am wondering why sony ericsson released update for their phones which makes their customer unhappy. I am fed up now, I never had problems with my old nokia – symbian phones.


  • Srijan

    Great,works :)
    Official (Y)

  • freex

    can u show me a video tutorial of this i tried everything but when i click flash i get a msg disconnect the cable and plug with holding back key…i tried many but till now i doesnt work…plzz help

  • Man Keong

    Xperia Ray’s back button is touch sensitive, how to “Press the back button and hold it”, then “Plug the USB cable”?

    • PBX

      Instead of the back button hold down the decrease volume level button :)

  • Josip

    if my phone is locked to t-mobile, will, can it be updated without any harm?

    • Pradeep Neela

      its not recommended to update with this

  • Jason

    first of all. my device shows in flashtool as ST18i not as LT18i. and then after clicking on the “Ok” tab to start the process of firmware. suddently gives a message saying that to unplug & off the device & press & hold the back flashtool software shows that flashing is cancelled. please help me on that.

  • Kmengheng

    Is it available for all users? I mean if i live in Cambodia so can I apply this update?

    • Pradeep Neela

      yes it can be updated in all the devices!

  • john francis

    why i cant find the …no final version check… i did all steps correctly but i does not appeared? anyone?

  • john

    why i cant find the “no final version check” i did all steps correctly but i does not appeared? anyone?

    • Pradeep Neela

      just re applyt eh update, the update file may be corrupted!

  • john

    why the other checklist in the bottom are not appeared??? someone tell me please!! I did all the steps correctly but the “No final verification check” not appeared..

    • Pradeep Neela

      re download the firmware!