UPDATE #3 - Have not gotten contact from HTC after my phone call was sent to "escalation" a couple of days ago. However, when I look at the tracker site now, it shows two low-res photos of my bootloader screen. So I guess that's confirmation that they are refusing warranty because of my unlocking. However, when the CSR rep looked up my serial number during chat BEFORE I did the advanced repair, he should have seen that my phone was unlocked since I did it via the HTC DEV site. At no time did he say the warranty would not be honored, and it was my understanding that the warranty will be honored as long as the repair isn't related to the modification. Since the camera lens issue is not at all related to unlocking my bootloader, I am still going to press the issue when they call me (which will hopefully be Monday or Tuesday). Since others in these forums said that they had no problem getting warranty service with an unlocked bootloader, I did not think it necessary to relock and change tamper bit. Obviously, I'm not trying to scam HTC for something I did myself; rather, it is a legitimate hardware issue that is totally unrelated and not caused by modded software. How hard is it for them to flash the factory rom back on the device and set it back to factory specs? Again, if my claim was for something I messed up due to unlocking, then I would understand not covering it.
EDIT:
Looking at the HTC DEV site where you unlock your bootloader (
HTCdev - Unlock Bootloader) it says the following:
"It is our responsibility to caution you that not all claims resulting or caused by or from the unlocking of the bootloader may be covered under warranty."
And further down it says:
"... going forward your device may not be held covered under the warranty for all claims resulting from the unlocking of the bootloader."
Notice it says "for all claims resulting from the unlocking of the bootloader". It doesn't say anywhere that the warranty is completely invalidated, nor does it say that warranty service will not be covered for claims NOT resulting from the unlocking of the bootloader. Based on this information, I see no reason why they should not honor warranty service for claims which are unrelated to the unlocking of the bootloader. And I will quoting this information when they call me from Escalation.