Copy downloaded zip file to the SD card of your phone. Important: Don’t extract any file.
Disconnect USB and then turn off your phone.
Boot into recovery mode. To do so, press and holdVolume DownandPowerbutton together to boot into HBOOT menu, from there select Recovery [use volume buttons to scroll and Power button to select].
Perform a Nandroid backup of your existing ROM that you can restore later if this new ROM not work or you want to go back. To perform a backup, selectBackup and Restore, then on the next screen, selectBackupagain. Go back to main recovery menu after backup is complete.
Now, perform data wiping task. To do so, selectwipe data/factory reset, then selectYeson next screen to confirm your action. Wait few minutes till the data wipe is complete. Now come back to CWM recovery main menu. Selectwipe cache partitionand after wiping process done, selectWipe Dalvik Cacheunderadvanceoption to perform Dalvik cache wiping.
Selectinstall zip from sdcard, then selectchoose zip from sdcard. Now, locate the cm-10.2.0-ville.zip file that you copied earlier in Step 2 and select it by pressingPowerbutton. Confirm installation by selectingYes – Install _____.zipon the next screen. The ROM installation will begin.
Once the ROM installation process end, repeat the step 7 but choose gapps-jb-20130813-signed.zipinstead of ROM zip to install the Google apps package.
When installation is completed, go back to the main recovery menu and selectreboot system nowto reboot the smartphone and boot up into customized Android 4.3.1 Jelly Bean ROM CM10.2. The first boot will take time, so be patient!
Returning to Previous ROM: To go back to your previous ROM, boot into recovery, selectbackup and restorethen restore your previous ROM by selecting it from the list.
Gapps not include – No Rooted – Language support: Multi lang