I am just back from a shop in Beijing with my brand new Lenovo 3GW101. I changed the setting to English but I want to change the firmware. What would be the best option? I want something efficient, idiot-friendly, customisable. Preferably with a FAQ/ step by step method (Im also new to this whole Android stuff). Also another silly question: can/need I unsimlock/unjail my 3GW101?