I can't update my Nexus S, shows error screen. What to do?

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Closed 7 years ago.

Possible Duplicate:
can't update, can't do a factory reset

My Phone (Nexus S) keeps pestering me to update the OS. But, every time I try, it restarts, displays the cute robot error screen and doesn't come back on until I take out the battery and restart it. I would just leave it but I'm still running Android 2.3.4, and it's time.

Any way of updating the OS other then clicking OK when it asks?

I'm not really sure what more info I can give you guys, ask and I will tell