Many Sony users complain about lack of attention on their devices, but today we have a tutorial dedicated to users of the Sony Xperia T.
In this we will see how to apply the update to Android 4.1.2 Jelly Bean manually on devices that already have root access thanks to CyanogenMod team.
Before proceeding with the upgrade you should be aware that this is a custom ROM, so you will lose the guarantee, although it is always possible to go back to the ROM Stock and flash counter to 0 to retrieve it.
Note: you can get root acces in the Xperia T by following this simple tutorial
Update SONY Xperia T to Android 4.1.2 Jelly Bean (CM 10)
Upgrade from the firmware Stock
1 – If you already have root access and ClockworkMod Recovery on your Sony Xperia T, now you have to download the ROM CM 10 from here (you can look out what is the latest on this link) and Google Apps package from here
After downloading the files you will have to move them to the root of the device, therefore will have to connect the Sony Xperia T to the PC via the USB cable.
If your computer does not recognize your device you might not have the latest drivers installed, which I recommend to install PC Companion
3 – What we do then is start our device in recovery mode, for which we turn off the device and then turn it on normally. When the purple LED light comes on, you must press the volume up button and the device will boot into recovery mode.
Once in recovery we will move inside the menu with the volume buttons to slide up and down and will select with the POWER button.
4 – The first thing to do is select “wipe data / factory reset”, enter with the POWER button and give “YES – delete all user data” with the same button. Remember that to select this option you must lower with the VOLUME DOWN and VOLUME UP buttons.
5 – After a few minutes the process will complete, as in the previous step will do the same but with the option “wipe cache partition”, and select “YES – Wipe Cache” with the help of the volume buttons and entering with POWER .
6 – Then, also from the Recovery will enter in “advanced” and within this menu enter “Wipe Dalvik Cache”, as in the previous steps select “YES – Wipe Dalvik Cache” with the POWER button again.
Here’s a video and a post that explains how and what does each one of these steps on a Samsung Galaxy S3. The way of initiate the recovery is different but the rest of the steps are identical.
7 – Once you’ve done all three processes, without moving from the Recovery go to “install zip from sdcard” -> “choose zip from internal sdcard” and there will select the file “cm-10-20121225-NIGHTLY-mint.zip” we downloaded before and install it by selecting “Yes – install cm-10-20121225-NIGHTLY-mint.zip” (find it down all together with the google apps package).
Note: if you have moved the files to the external SD should select “install zip from sdcard” -> “choose zip from sd card” (decided to do the tutorial with the internal SD as all devices bring one with you, not the external SD , but the process is the same and nothing will change)
8 – Once finished the process we will get into “install zip from sdcard” -> “choose zip from internal sdcard” and there will select the file “gapps-jb-20120726-signed.zip” which is the Google apps package and install it by selecting “Yes – install gapps-jb-20121011-signed.zip”.
After completing these two installations will have to select “Reboot System Now” which is in the first of the Recovery menu, if you’re not there select “+ + + + + Go Back + + + + +” until you find it.
Ready! When you start your device already you should see the logo of CyanogenMod 10 which indicates that the process was completed successfully!