Help with my rooted Rezound that now it keeps on looping and drains the battery

Hello all;
I don't know what to do. I wonder if any of you can really help me. I hope i did not brick my phone. I had a rooted phone with cleanrom ICSE 3.6 it all worked perfect until yesterday. The phone goes into an infinite loop, it shuts it self off and then it turns on. What can I do. How would i go about starting again from the beginning. after rooting the phone. what do i do next do i have to flash the boot.img again i wonder if I do everything over will it fix the problem. Please help, I'm really new at this so please consider writing in idiot proof language hehehe.

 

i tried without the back cover i tried the removing of the sim, I'm getting frustrated. it keeps on looping i occasionallly able to call and it works. it is weird don't know what to do.

 

how do i relock

 

are you talking about this
[Exclusive Download] HTC Rezound Ice Cream Sandwich RUU For Final OTA (3.14.605.12)
when you are referring to the new RUU

 

I'm curious to know what would make my phone work again. i tried so many things. do you think starting again from scratch will help

 

phone boots up and everything seems to work for 1 min and then it shuts it self off

 

finally got my phone to say relocked and when i try to update the new ruu it says main verison is older update fail what does it mean

 

i ran the command fastboot oem lock and now i get relocked, but when i try to boot the phone with the 4.3.605.2 firmware it doesn't do anything it keeps on saying no image or wrong image and to press power to continue but when i press power it takes me to bootloader. all i can do now is get to bootloader, but nothing else. what should i do next