If that custom ROM sitting atop your Nexus One has left you begging for an undo button, you’ll be happy to know HTC is offering wily users a free return pass to its trusted Android 2.3.3 build (GRI40). While thrill-seekers previously had the option to come back through the Froyo door, this updated restore image saves the pain of performing a system upgrade after restoring your phone. With HTC’s safety net squarely in place, you’re certainly welcome to check out CyanogenMod’s latest offering — we hear they’ve got something new to play with.

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