SONY Xperia T LT30p smartphone can now be upgraded to the latest Jellybean 4.1.2 Firmware which is dubbed as 9.1.A.0.489. The best part is that this is not just an Official update but we will also help you update manually. Many users of SONY Xperia T LT30p has complained of issues while updating as they get an error message of “Unable to Contact with Update Server”, so for all those we have come out with a manual way. Please note that by applying this Jellybean 4.1.2 update manually won’t void the warranty in any manner.
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 T LT30p 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.
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.
Note: Download and Install Official SONY Xperia T Drivers in your computer / mac for smoother update process.
Assuming that you are done with all the above mentioned steps, you can now head over to the next page where we have mentioned a detailed guide on how to update with this firmware update.
