Wait for Jellybean 4.2.2 for XPERIA Z is finally over and in the due course of this article we will be checking out on how to install the same manually. Please note that you will have to make sure that your XPERIA Z smartphone has the model number of C6602 and C6603 and should be unlocked device. The model number can be checked from the path “Settings>> About phone”. This Jellybean 4.1.2 firmware is dubbed as 10.3.A.0.407. So, before proceeding to the detailed tutorial on how to apply this firmware, you will have to go through the list of instructions for applying this update, go through the list of pre requisites which we have mentioned below.
Quick Pre Requisites:
- Create a backup of all the data in your Xperia Z ONLY with the help of below mentioned steps. Kindly don’t use ROM Manager or any other tools like PC Companion etc. for creating the backup.
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 Z is left with the minimum of 50% 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.
Assuming that you have followed all the above mentioned instructions, you can proceed on to next step where we have mentioned the detailed guide on how to apply with this firmware update.