Originally Posted by Big_O
Before you take it back, be sure the original OS (the one that came with it) is on the unit or the warranty will be voided. Most people upgrade their OS and forget to downgrade it for a return.
Upgrading the OS voids the warranty? Even a successful upgrade? That seems sort of ridiculous, since you aren't tampering with any hardware. Now you've got me scared that I upgraded my OS from the official 4.3 to the newer 4.5.