Got my hands on the Nexus S recently, and so far I’m loving it. I’m still getting to know the OS better – and with it learning more about the different ROMs, installing them and flashing them (Side note: The speed at which custom kernels & ROMs get flashed is a serious shock especially if you’re used to the slow-as-snails-on-time-machine update process that is iTunes).
Anyhow, I’ll save my thoughts on the Nexus S for a later blog post.
Coming back, I switched to a custom Kernel + ROM + Recovery, and now when the OTA was pushed to my phone, I was apprehensive about how to apply it. A bit of research indicated that the OTA is not possible, and I’d have to flash to stock – which means all my data would be wiped.
So here’s what I did:
- Install Titanium Backup Pro & take a backup of all my apps, data & system data.
- Sync the backup to DropBox
- Download SuperUser to the phone.
Updated ClockWork Recovery Mod (“CW”)to 18.104.22.168 by downloading from here and then flash it using
fastboot flash recovery recovery-clockwork-3.0<br />
Download stock 2.3.1 Nandroid from here & update it from within Clockwork Recovery.
Reboot phone. 2.3.1 will erase CW and replace it with stock. Install ROM Manager and allow it to install CW.
Install superuser by rebooting the phone into CW & choosing to install Zip from the phone.
So, at this stage, you will have a clean, stock phone with root privileges available. Complete the process by
- Installing BusyBox and TitaniumBackup
- Restore all your apps & data by using TitaniumBackup
Also: note that 2.3.1 features a change which will replace CW with stock recovery on every reboot. To avoid this, use Root Explorer, find /etc/install-recovery and rename it to /etc/install-recovery.never ( or whatever) to prevent CW to be overwritten by stock recovery.
Compiled from my experiments after getting confused over various threads in XDA.