Take phone to full charge. The PC exe RUU could take a while.
http://dl3.htc.com/application/RUU_..._NV_SPCS_1.52_003_release_418488_signed_2.exe
Put phone in FASTBOOT USB mode.
Execute the above file.
If it fails, try relocking the bootloader. Go to sdk-tools:
fastboot oem lock
Run the exe again.
http://dl3.htc.com/application/RUU_..._NV_SPCS_1.52_003_release_418488_signed_2.exe
Put phone in FASTBOOT USB mode.
Execute the above file.
If it fails, try relocking the bootloader. Go to sdk-tools:
fastboot oem lock
Run the exe again.



