I installed TWRP so I could root my TD-CDMA hongmi. There is now a new update available for the phone - if I use the standard updater it doesn't work and only takes me into the TWRP interface. I have downloaded the latest ROM from the official site - but I'm not sure how to flash it correctly. What procedure should I follow? Thanks! P.S. I am using the official ROM because I am in China.