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Text of the page (random words):
nokia n900 maemo leste wiki 51 captures 02 jul 2019 17 aug 2026 nov dec jan 19 2021 2022 2023 success fail about this capture timestamps the wayback machine http web archive org web 20221219003727 https leste maemo org nokia_n900 nokia n900 from maemo leste wiki jump to navigation jump to search nokia n900 manufacturer nokia codename rover rx 51 dimensions 110 9mm x 59 8mm x 18mm release date 2009 11 11 category supported specifications soc ti omap 3430 600mhz dram 256 mb mobile ddr hardware features lcd 800x480 3 5 resistive tft video powervr sgx530 network wl1251 storage 32gb usb host otg micro usb 2 0 slave battery capacity 1320mah software features kernel 5 1 serial yes uart under battery 2 7v max charging yes usb slave gadgets only usb host with hacks touchscreen yes single touch keyboard yes screen yes tv out yes 3d acceleration yes closed driver vibration motor yes audio yes complex no ucm no speaker protection phone calls wip sms yes no ui wifi yes firmware required irda yes actually cir not irda 2g 3g data yes bluetooth no fm transmitter yes fm receiver no accelerometer yes proximity sensor yes ambient light sensor yes gps yes a gps no idle power consumption 300mw needs kernel work contents 1 installation 1 1 image installation 1 2 bootloader u boot setup 1 2 1 quick 1 2 2 existing fremantle 1 3 increase filesystem size 2 serial 3 notes 3 1 speakers 3 2 torch 4 power management 5 battery calibration 6 accessing mtd 7 old status table installation the installation consists of two steps copying the image to the microsd card and setting up the bootloader on the phone image installation latest image https phoenix maemo org job leste image n900 lastsuccessfulbuild artifact arm sdk dist image archive https maedevu maemo org images n900 dd the image to an sd card if using a windows machine you can use etcher see the next section on how to boot using either 0xffff flasher 3 5 or u boot bootmenu http talk maemo org showthread php t 81613 bootloader u boot setup quick if you don t want to configure u boot from fremantle or your fremantle rootfs is broken or you just want to install quickly 1 either download 0xffff binary for x86 from https maedevu maemo org images n900 tools or build from source from https github com pali 0xffff 2 download u boot from https maedevu maemo org images n900 tools 3 turn off nokia n900 issue the following command on pc and connect nokia n900 to the pc sudo 0xffff m test u boot 2013 04 2 bin l 4 open the keyboard slider on the n900 and then issue following command on pc to test boot 0xffff b this should present u boot from which you can select external sd card and boot to maemo leste if you are presented with a menu select the option to boot from external sd card if you just get a command prompt type run sdboot to flash u boot permanently you can issue the following command be careful though this will replace the existing fremantle kernel only do this if you do not care about the existing maemo installation or you know how to recover from this condition sudo 0xffff m test u boot 2013 04 2 bin f existing fremantle if you have a functional fremantle installation you can follow these steps instead 1 install u boot with kernel 2 6 28 omap1 2 install linux kernel for power user boot image for u boot this is optional but recommended 3 add maemo leste menu item run as root cat etc bootmenu d 30 maemo leste item eof item_name maemo leste item_kernel uimage item_device ext_card p1 item_fstype ext2 eof u boot update bootmenu 4 reboot the device increase filesystem size run the following script etc expandcard sh serial http n900 elektranox org serial adapter html http wiki maemo org n900_hardware_hacking debug_ports use this command line specifically the part after rootwait root dev mmcblk0p2 rootwait console ttys2 115200 verbose earlyprintk debug notes speakers speakers are enabled by default but be careful of very high frequencies levels there are concerns regarding the possibility to blow them there is no clear consensus about this but it is best to err on the side of caution torch the n900 has an analog devices adp1653 flash controller mainly for use with the camera it drives two white power leds connected in series and has an additional red indicator led referred to as a privacy indicator the adp1653 has a driver in mainline kernel and it probes fine however some dts changes are needed to make it work since the driver requires it to be tied to a camera in the meantime the leds can be used as a torch manually using i2cset however be warned setting wrong values via i2c runs the risk of over driving the leds and causing permanent hardware damage install the prerequisites sudo apk add i2c tools unload the driver in case it is already loaded we will use i2c manually sudo modprobe r adp1653 enable the chip echo 88 sudo tee sys class gpio export echo out sudo tee sys class gpio gpio88 direction echo 1 sudo tee sys class gpio gpio88 value turn the torch on using the lowest torch current do not use other values here or you risk burning the led values between 1 and 7 enable the red privacy recording led with different intensity 0x8 is the lowest torch intensity and we do not recommend going above it sudo i2cset y 2 0x30 0x0 0x8 turn the torch off sudo i2cset y 2 0x30 0x0 0x0 disable the chip echo 0 sudo tee sys class gpio gpio88 value echo 88 sudo tee sys class gpio unexport power management this ticket tracks hitting idle states for the n900 https github com maemo leste bugtracker issues 545 power usage right now is reported to be about 80ma which is quite a lot on a good battery this will last for about 15 hours power management on the n900 is being worked on https github com maemo leste bugtracker issues 170 https wiki maemo org n900_hardware_power_management https wiki maemo org n900_hardware_power_consumption run modprobe ledtrig default on and echo default on sys class leds debug sleep trigger to enable the omap sleep debug leds on the keyboard open keyboard turn off the screen with the slider and the leds will turn off if the phone ever reaches sleep modes currently it does not yet reliably reach any sleep modes see this code for a work in progress power management script https github com maemo leste n900 pm battery calibration nokia n900 has bq27200 integrated circuit for monitoring battery state the datasheet can be found here http www ti com lit ds symlink bq27200 pdf if you are curious check the section called gas gauge operation for how the battery calibration is done in a low level here are described the steps necessary to calibrate your battery this should help if you see battery not calibrated message in the status applet fully charge nokia n900 don t detach the charger immediately give it some time after you see fully charged message 10 minutes should be enough detach the charger and don t attach it again until the battery is fully depleted remember if you attach the charger or usb cable at least once you will need to start the calibration from the beginning fully charge the device again you may use the device as you normally do you may power it off power it on reboot all as usual just don t connect the device to a charger or a pc using the usb cable when your nokia n900 has battery depleted it will alarm you with the battery low sound wait for about 20 seconds and attach the charger if the device was powered off because of battery depletion it s fine the battery should have done the calibration cycle just attach the charger to the device give it a minute and press power button to start booting if you still see battery not calibrated message reboot the device after the first calibration cycle you will see that it has 1700 mah for the fully charged battery this value is wrong it s how the battery calibration works in low level it can t change the fully charged value of the battery in steps that exceed 12 5 what this means for us it s needed to repeat the calibration cycle several times to get more accurate value it may take about 3 7 calibration cycles to get the proper mah value for fully charged battery if you spend some time on this process you will get really accurate battery gauge and you will always know how much charge is remaining tip 1 if for any reason you want to reset the battery calibration value to see the message battery is not calibrated again you should remove the battery from the device for about 6 hours tip 2 if you replace the battery you may want to do 1 2 calibration cycles described above to update the gauge for your new battery accessing mtd list devices cat proc mtd mount apt install mtd utils mkdir vp mnt fremantle ubiattach p dev mtd5 mount t ubifs ubi rootfs mnt fremantle old status table feature leste supported notes kernel version 5 15 mainline powervr patches https github com maemo leste n9xx linux serial yes requires special hardware charging yes wireless yes firmware is non free ethernet n a micro usb yes usb network mass storage otg not working although it might be possible keyboard yes screen yes 3d acceleration yes closed driver touchscreen yes resistive audio yes works minus speaker protection but requires complex alsa configuration and currently no ucm support 2g 3g data yes works with ofono ui is wip see https github com maemo leste connui cellular 4g data n a no hardware sms yes works with ofono needs leste ui phone calls wip works no ui poor quality for upstream audio might require pulseaudio audio filters bluetooth no driver needs some work fm transmitter yes install v4l utils then enable chip and set frequency using v4l2 ctl d dev radio0 c mute 0 tune_power_level 120 f freq fm receiver no accelerometer yes compass n a no hardware gyro n a no hardware proximity sensor yes evdev interface not supported in mce ambient light sensor yes vibration motor yes hdmi out n a no hardware tv out yes enable in alsamixer jack function in alsamixer to tv out enable with xrandr output tv mode 800x480 same as lcd set pal ntsc with xrandr output tv set signalproperties pal and scale with xrandr output tv set tvscale 90 gps yes infrared broken tx only hardware limitation sending pulses causes a kernel oops camera no needs complex v4l work no leste integration idle power consumption 300mw device does not enter ret or off mode retrieved from https leste maemo org index php title nokia_n900 oldid 1277 categories pages using deprecated source tags pages with syntax highlighting errors devices device navigation menu page actions page discussion view source history page actions page discussion more tools in other languages personal tools create account log in navigation main page recent changes random page help about mediawiki search tools what links here related changes special pages printable version permanent link page information cite this page page values this page was last edited on 12 march 2022 at 11 52 privacy policy about maemo leste wiki disclaimers