HTC One V (GSM) bootloop - change back factory stock topic

I would like change back the original factory/stock ROM on my HTC One V devices.
Currently is run an Cyanogenmod 10.1, but the device frozen in boot loop.

Device data:
Primo U
SHIP S-ON RL
HBOOT-1.18.0000ú
RADIO-3381.24.00.23_M eMMC-boot

How can I get back the stock/factory ROM?

Any help?
Thank you for your help!

Blazerod