Hello, I want to use a 4G Sim in my Nokia N900. The LTE Bands that the SIM uses are Band 3, 5 & 40 over frequencies 1800Mhz, 850Mhz & 2300Mhz respectively. Is there any way to manually switch the bands and select network on N900? I know that this is hard to achieve but If it is possible then I want to achieve it. This is possible in many 3G Android mobile devices so hoping that it is possible in this phone as well. If it is possible by doing some hardware hacking then I am ready to do it as long as it is reasonable.