OTA update 2.33.709.6 failed at boot

I was trying to do the OTA update 2.33.709.6 in Taiwan.
At first, I flash the wrong stock recovery, so got the red exclamation mark screen.
Then, I flash the correct 5.0 stock recovery (thought so, as I was able to reboot my phone properly)

I did the OTA update, and got stock at reboot.
The screen just went black out after the white htc boot screen
I believe there are people having the same issues.
Please let me know how to fix it.
If possible, I would prefer not to flash ROM completely and keep my data.

I'm guess I need to flash the correct recovery and boot from OTA update 2.33.709.6.
Please share it with me if you have it.

Thanks.