maybe this will help a few user's of Vodafone branded Desire X who want to receive OTA again.
This is tested and known to work with CID VODAP102
and may work for other VODAP CID's (UK) as the OTA Package said Vodafone UK
Steps by step:
1. Copy the TWRP Folder on your SD card
2. Flash TWRP if not flashed already
3. restore the backup named "B"
4. flash the boot.img via fastboot as recovery
5. flash the recovery_signed.img via fastboot as recovery
6. fastboot oem lock
7. cross fingers and reboot