This will not work if you used the HTC Bootloader unlock tool. Your
device must be fully stock with a locked bootloader or you must have
Now I don't want to seem obtuse, but I'd like to know exactly what that paragraph means by "fully stock". Why? Because I'm rooted and I have replaced the stock recovery with the amon-ra recovery image. That ain't stock. And because the OTA download/install put me in eternal boot loop mode, even though I had re-locked my bootloader.
So my questions are:
(1) Do I need to flash the boot.img file from an older RUU (the one from my current stock GB ROM) to *really* get back to stock?
(2) If the answer to (1) is yes, can I do that with an "install-from-bootloader" update.zip file, or do I need to do the flash via my PC using fastboot?