OEM unlock and ClockWorkMod Recovery install for Samsung Nexus S(i9023 and i9020A)
Preparation
- Installed Android SDK
- Download and extract recovery clockwork, placed the img file inside android-sdk-windows/tools and rename it become recovery.img
Install Samsung Nexus S driver
- Go to android-sdk-windows folder
- Run Android SDK Manager
- Expand Extras.
- Check Google USB Driver package
- Click Install
- Read here for detailed driver installation (win XP, win Vista, win 7)
Unlock OEM Samsung Nexus S
- Turn off Nexus S
- Connect to PC/Laptop via USB cable
- Press and hold Power + Volume[+] buttons until the bootloader interface loaded.
- At Nexus S Screen, you`ll see LOCK STATE – LOCKED
- At windows Open command prompt or start > run, type: cmd
- Change work path and unlock oem
cd c:\android-sdk-windows\tools
fastboot oem unlock - In Nexus S, you`ll see confirmation to unlock
- Select YES, make sure you already backup all your data, this step will wipe all your data
- Wait for complete confirmation come up
- A confirmation ‘LOCK STATE – UNLOCKED’ will show on screen, go to next steps
Install ClockWorkMod Recovery
- back to command prompt to install CWM Recovery, type
fastboot flash recovery recovery.img
- Wait for cwm installation successed report
- Reboot
- Done
Do With Your Own Risk
