follow this step using flasher 3.5 In order to flash the eMMC, follow these steps: * Fully charge the battery (IMPORTANT!!) * Unplug the USB cable from the device. * Turn off the device. * Install Flasher for your OS (Linux, Mac OS X or MS Windows) * Grab the Vanilla eMMC image (.bin file) from the Nokia repository * Navigate to the directory where the image file was saved. * Plug in the USB cable into the computer. * Execute the following command (in linux you have to be root!): * Windows flasher-3.5.exe -F RX-51_2009SE_3.2010.02-8.003_PR_COMBINED_003_ARM.bin -f -R * Text similar to the following will be displayed on the computer: flasher v2.5.2 (Oct 21 2009) Image 'mmc', size 241163 kB Version RX-51_2009SE_1.2009.41-1.VANILLA Suitable USB device not found, waiting. * Plug the USB cable into the N900. * The dim Nokia screen will be displayed for a few seconds followed by progression dots. Text similar to the following will be displayed on the computer: USB device found found at bus 001, device address 006. Found device RX-51, hardware revision 2101 NOLO version 1.4.13 Version of 'sw-release': RX-51_2009SE_1.2009.42-11.002_PR_002 Booting device into flash mode. Suitable USB device not found, waiting. USB device found found at bus 001, device address 007. Raw data transfer EP found at EP2. [writing 74 % 179200 / 241163 kB 13180 kB/s] Image(s) flashed successfully in 26.848 s (8982 kB/s)! * The flash will take around 1 minute after which the device will reboot. * The bright Nokia screen will come up on the screen with the USB icon on the top right followed by progression dots with yellow LED blinking for a few seconds. The device will then turn off and go into charging mode with the yellow LED blinking (NOTE: If the device appears to reboot, unplug the cable.) * Unplug cable and wait for device to turn off completely. You may hear a sound (punk) of the device turning off. * Having flashed the eMMC,