After 2 weeks of delays, the much anticipated Nexus S 4G update (Sprint only for now, sorry AT&T/T-Mo) to Android 2.3.5 (GRJ90) started rolling out earlier today. If you haven't gotten yours yet but want to apply it immediately to enjoy that nice boost to 4G speeds, among other things, then proceed to our instructions below - you'll be rocking the official 2.3.5 build in no time.
Instructions
Note: Make sure you're running stock Android 2.3.4, build GRJ22 (the update will likely fail if you're rooted).
- Download the update file GRJ90-from-GRJ22 and rename it to update.zip (make sure it's named update.zip and not update.zip.zip if you're using Windows and have it set to hide file extensions).



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