Xperia V

Manual Update SONY Xperia V LT25i with Official 4.1.2 Jellybean Firmware

Update your SONY Xperia V LT25i smartphone with the latest Jellybean 4.1.2 firmware which is dubbed as 9.1.A.0.490. For all those who have been eagerly waiting to update with this release of Jellybean, here comes a great news as despite SONY released this update quite a few days back, most of the users are unable to update with the same. Before we proceed, let’s check out on what are the quick pre requisites you need to follow before you proceed to the next step for update instructions.

Note: Applying this Jellybean 4.1.2 firmware update in your SONY Xperia V LT25i smartphone won’t root the device in any manner / void the warranty. Also, for users who are on custom ROM firmware currently can update with this firmware update to restore back the lost warranty.


Quick Pre Requisites:

  • Not with the PC Companion or ROM Manager, create a backup of all the data with the help of below mentioned manual steps.

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

  • Enable the USB Debugging Mode in your computer from the path “Settings > Applications > Development > USB debugging”. Make sure that your SONY Xperia V LT25i is left with the minimum of 60% battery or else the device might just get turned Off in the middle of firmware update.
  • Also, make sure that the MTP Mode is Disabled which can be done from the path “Settings > Xperia > Connectivity > USB Connection Mode” to select the MSC Mode and not the MTP Mode.

Note: Download and Install Official SONY Xperia V LT25i Drivers in your computer / mac for smoother update process.

Disclaimer: We should not be held responsible or liable in any manner for any damage caused to the device which is very unlikely if you follow the instructions carefully mentioned in this article.

Assuming that you are done with the above mentioned steps, you can now proceed to the next page where we have mentioned a detailed tutorial on how to update with this firmware update.

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