What I am using now on N900 is of 157 MB (renamed file,nokia_N900.bin) while the one which is 'latest image' in repositories has title : RX-51_2009SE_20.2010.36-2.004_PR_COMBINED_004_ARM.bin (i.e. For India). I did not use this image (190 MB) for flashing for some unknown reasons. But I want to use the same,later,191 MB image as my OS without flashing N900 through commands. Please guide me.