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Android KitKat 4.4.1 on Nexus S (CM11)

My Nexus S was on CM 10.2 (Android 4.2) for a while and held off upgrading to 10.3 (Android 4.3) because there was little difference in the upgrade. Kitkat (Android 4.4), on the other hand, promised good performance on devices with as little as 512MB, so I jumped at the chance when the first Nexus S (crespo) KitKat nightlies started appearing on Cyanogenmod.

I encountered just one hitch in the upgrade and it was related to the clockwork recovery I had. Here are the steps to upgrade from CM 10.2 to CM 11 Nightly.

Backup your phone data
  • Backup your SMS messages. I used the SMS Backup and Restore app.
  • Backup your photos. Just copy the \DCIM\Camera folder to your drive.
  • Backup your phone ROM. Just boot to recovery (Power off, Hold Power and Vol Up button until the recover menu comes up) and do a backup.
Download the following files on your PC
Install Clockwork Recovery
  • Follow instructions on download.cyanogenmod.org/?device=crespo to install the Clockwork Recovery to your phone. (See Installing recovery using fastboot)
  • Note that I didn't wipe the data anymore. I just wiped the cache. All my apps and setting remained intact.
Install CM11
  • Follow instructions on download.cyanogenmod.org/?device=crespo to install the Clockwork Recovery to your phone. (See Installing CyanogenMod from recovery).
Enjoy your Kitkat!

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