Download: Android 2.3.7 (GWK74) With Google Wallet For The Nexus S 4G

WARNING: This file is only for the Sprint Nexus S 4G. To flash the update, the phone must be stock - that means no custom ROMs. Rooted handsets are OK, though this might reset root permissions (you just need to re-root). We've included a link to a full, flashable ROM which will probably require a wipe, as well.

If you find yourself still without the Android 2.3.7 (GWK74) update for your Sprint Nexus S 4G, have no fear - we're here to help. Thanks to Omar over on Google+, we've got a direct link to the update.zip from Google themselves. To flash the update:

• DOWNLOAD: Android 2.3.7 (GWK74) For Sprint Nexus S 4G (Mirror)
• Rename the file to "update.zip" (please make sure you have file extensions set to show)
• Place it on the root of your SD card (not in a folder)
• Reboot into recovery
• Select "Apply update.zip"

When you reboot, launch Google Wallet - it may crash on your first run, so just run it again if this happens. As a note, If you're on a handset with a custom (or DeOdexed) ROM and want to update using this file, you'll need to flash back to stock GRJ90 to flash this update
If you are running a custom ROM and want to flash to the stock GWK74 update, check out this thread over at XDA. There are links for both de-odexed and odexed versions.
Google+, Thanks Omar!

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Tags: Android 2.3.7,Google,Samsung