OK, well i can reproduce the battery drain (even when phone is idle), heating issues to the point of shut-down on any ROM. My Sim-card wont load up on boot and usually takes toggling flight mode a few times, try that.
No wifi after flash just sounds strange, may actually be a HW problem
Sent from my LG-P880
The Oldie ___ Sony Xperia X8 - CM 9 BETA(Running 1@768 mhz CPU)
The Playful ___ LG Optimus 4X HD - CM 11(Running 4@1700 mhz CPU)