I have been using O2 XDA Exec for the past few months, I found O2 ROM to be very slow. I wanted to replace the O2 ROM with Imate Jasjar ROM but unfortunately didn't find someone who could answer that "if it is possible, and How?"

I have recently updated the O2 ROM which is 1.30.107 WWE, but am facing a new problem i.e. the phone disconnects and network signals disappear, it can be only turned ON with Soft reset while the device connected to power else the device cann't be turned ON.

Is there a possibility to replace the O2 ROM with Jasjar ROM?
If yes, than how can I do it?

NL