Update Google Nexus S I9020 To Android 4.4.3 KitKat via CM11 Nightly–How To

CM11 Nightly custom firmware based on latest Android 4.4.3 KitKat is now available for Google Nexus S I9020. It means, you can update your Google Nexus S I9020 to a well customized Android 4.4.3 KitKat. If your device running on Android 4.4.2 KitKat, its always a better idea to update it to latest Android 4.4.3 KitKat since its more secure and bug free. The good thing about nightly build is, it updated daily with more features and improvements. You can download and install custom firmware CM11 nightly on your Google Nexus S I9020. Since, Google Nexus S I9020 is capable enough to run Android 4.4.3 KitKat smoothly, CM11 nightly going to be a great experience for you. To learn how to flash this ROM, continue reading this guide to know how to install Android 4.4.3 KitKat based CM11 nightly custom ROM on Google Nexus S I9020.

Related Readings:
Please note, this nightly build is still under development and hence, you should expect some bugs in it. All bugs and issues expected to be fixed as development progress towards a stable build.

CM11 Android 4.4.3 KitKat


Warning!
 
This tutorial is only for Google Nexus S I9020. Don’t try this guide on any other Android device. Also, we (True Android Team) are not responsible for any damage caused due to the instruction given in this page. Try this at your own risk. However, it is very unlikely that your device will be damaged if you follow all the instructions as it is which are mentioned in procedure.

Pre Requisites:

1. Backup your device data. You can follow our ultimate backup guide.

2.  Make sure your device have at least 60% battery power. You can install an app like Battery Notifier BT Free on your Android device to check it easily.

3. You already have USB Driver Installed for Google Nexus S I9020 in your PC. [Download USB Drivers]

4. Make sure USB Debugging is enabled otherwise you won’t able to transfer file between PC and Google Nexus S I9020. [Guide].

5. Your device have latest CWM version 6.0.4.4 and up or TWRP 2.6.3.0 and up installed. [Guide]
If you done everything that we mentioned above then you are ready to follow step-by-step guide on how to install Android 4.4.3 KitKat based CM11 nightly ROM on Google Nexus S I9020.

File Required(Download by clicking on it)
  1. CM11 nightly For Google Nexus S I9020  [Filename: cm-11-20140608-NIGHTLY-crespo.zip]
  2. Google Apps [Filename: GApps_Standard_4.4.2_signed.zip] or any other 4.4 KitKat GApps

How to Install Android 4.4.3 KitKat based CM11 nightly ROM on Google Nexus S I9020

  1. Connect your device to PC using USB cable and then copy downloaded files to the SD card of your device. Important: Don’t extract any files.
  2. Disconnect USB and then turn off your Google Nexus S I9020.
  3. Boot into recovery mode. Press and hold Volume Down + Power key together and release the Power key once the Google logo appears, but keep holding the Volume Down key. You will be in Bootloader mode now. Press Volume Down two times so that Recovery option appears, and then press Power key to reboot into recovery mode. Use Volume keys to browse between options in recovery while Power key to select an option. Alternatively try this: Recovery Mode without Key Combination.
  4. 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 into your previous ROM. To perform a backup, select Backup and Restore, then on the next screen, select Backup again. Go back to main recovery menu after backup is complete.
  5. Now, perform data wiping task. To do so, select wipe data/factory reset, then select Yes on next screen to confirm your action. Wait few minutes till the data wipe is complete. Now come back to CWM recovery main menu. Select wipe cache partition and after wiping process done, select Wipe Dalvik Cache under advance option to perform Dalvik cache wiping.
  6. Select install zip from sdcard, then select choose zip from sdcard (or /sdcard1 for external storage). Now, locate the CM11 nightly Zip file that you copied earlier in Step 1 and select it by pressing Power button. Confirm installation by selecting Yes – Install _____.zip on the next screen. The ROM installation will begin.
  7. Once the ROM installation process end, repeat the step 6 but choose the GApps_Standard_4.4.2_signed.zip file instead of ROM zip to install the Google apps package.
  8. When installation is completed, go back to the main recovery menu and select reboot system now to reboot your Google Nexus S I9020 and boot up into Android 4.4.3 KitKat ROM CM11 nightly
  9. Returning to Previous ROM: To go back to your previous ROM, boot into recovery, select backup and restore then restore your previous ROM by selecting it from the list.
Tutorial For TWRP Recovery Users:
  1. Connect your device to PC using USB cable and then copy downloaded files to the SD card of your device. Important: Don’t extract any files.
  2. Disconnect USB and then turn off your Google Nexus S I9020.
  3. Boot into recovery mode. Press and hold Volume Down + Power key together and release the Power key once the Google logo appears, but keep holding the Volume Down key. You will be in Bootloader mode now. Press Volume Down two times so that Recovery option appears, and then press Power key to reboot into recovery mode. Alternatively try this: Recovery Mode without Key Combination.
  4. Create a Backup using TWRP Backup Option.
  5. Perform a Factory Reset (this will delete all apps and their settings and game progress). To do this, Tap on Wipe, then at the bottom of the screen do a Swipe on the ‘Swipe to factory reset‘ option.
  6. Now its time to add zip file for flashing. Tap on Install, then browse to the location where you saved the files and tap on the CM11 Nightly Zip file. Then tap on Add More Zips, and add GApps_Standard_4.4.2_signed.zip. Now at the bottom of the screen, do a swipe on the Swipe to confirm flash option to begin flashing.
  7. When installation is completed, go back to the main recovery menu and tap on Reboot and then, tap on System to reboot your Google Nexus S I9020 and boot up into Android 4.4.3 KitKat ROM CM11 nightly.
  8. Returning to Previous ROM: To go back to your previous ROM, boot into recovery, select Backup then through Restore option, restore your previous ROM by selecting it from the list.
Congrats! Android 4.4.3 KitKat firmware based custom ROM CM11 nightly is now installed and running on your Google Nexus S I9020. [Note: Root may turned off by default in CM ROM, To enable it, enable developer settings first (tap the build number 8 times under about device), then enable root under Developer Settings]

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