Phone ROM vodafone smart 4G coolpad 8860U

I am trying to find a Rom for Vodafone 4.2.2 smart 4G coolpad 8860U and have not found.
Someone please tell me where can I find one? Is there one available?
I looked for CMW and none available for this phone.
The manufacturer is YULONG, chinese manufact.
Can U help me?
My phone is constantly restarting, even more when in facebook or internet!
Sometimes and by it self, restart only because??!!

Thanks for your help,