Whenever I have problems like this I would go back to stock... I've attached the 3.26.651.6 image. I ripped it directly from the shipped RUU. Just for S and G's I like to completely wipe my card before before flashing. Thats just me. Rename it PC36IMG and place it on the root of your SD card. Start your device in bootloader and cross your fingers. I know this sounds a bit condescending but you cant go wrong following instructions.
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