Ok try to do a fresh install of PR1.2.. So flash your device using the flasher... Flash the rootfs image first then the emmc (make sure you backup the files that you need in MyDocs first)... So Download the firmware(s) from: http://tablets-dev.nokia.com/nokia_N900.php (You need: RX-51_2009SE_10.2010.19-1_PR_COMBINED_MR0_ARM.bin (that's the global firmware or you could use the other ones if u want... and you need the latest emmc content which is: RX-51_2009SE_10.2010.13-2.VANILLA_PR_EMMC_MR0_ARM.bin) Then you download the flasher-3.5 then you follow the steps on http://wiki.maemo.org/Updating_the_firmware Make sure you don't put an -R at the end when you flash the firmware.. but you do add -R after you flash the emmc...