Documentation/Maemo 5 Developer Guide/Development Environment/Maemo Flasher-3.5

Contents

Maemo Flasher-3.5 Tool

The Maemo Flasher-3.5 tool is used to flash data to the Maemo device internal 256MB of NAND, which is where the bootloader, kernel, and rootfs (all of which make up the operating system) are stored. Flasher-3.5 can be used to upgrade the firmware, wipe the Maemo device and start from scratch, flash certain specific components, or change a number of hardware flags.

Maemo Flasher-3.5 Tools can be downloaded from the Maemo Development Environment Downloads page.

Release details

  • Version: 2.5.2 - Final
  • Date: October 23, 2009
  • Hardware supported: Nokia N800, N810 and N810 WiMAX with Diablo 4.1.x and N900 with Fremantle 5.x

Supported operating systems

  • Linuxes (Debian installation package available for Debian based Linuxes and tar ball for others)
  • Windows XP with SP3, Vista with SP2 and Windows 7
  • Mac OS X 10.5 Leopard and 10.6 Snow Leopard

Linux and Windows versions of Flasher-3.5 Tool support x86/32-bit host PC architectures. Mac OS X versions support x86/32-bit and PPC/32-bit architectures.

Files included in the delivery packages

flasher-3.5  
flasher binary file (flasher-3.5.exe for Windows)
libusb  
USB library (only for Windows and Mac OS X installations)
COPYING_LGPL.txt  
license text for libusb (only for Windows and Mac OS X installations)
License_Agreement.txt  
license and disclaimer text for flasher binary
Help.txt  
short command line help
Readme_Maemo_Flasher-3.5.txt 
Flasher-3.5 readme file

Downloads and documentation

Flasher-3.5 download: Maemo Development Environment Downloads

Flasher-3.5 documentation: This document and documentation are delivered as part of installation packages (readme and help files)

Sources for libusb library (LGPL v2) installed as part of Flasher-3.5 for Windows and Mac OS X:

Original libusb sources are available from SourceForge.net:

Installation

The Maemo Flasher-3.5 tool should be installed from the installation package provided for Debian based Linuxes, Windows and Mac OS X. For Linux distributions other than Debian-based ones, a compressed tar file is also provided.

Installation of Maemo Flasher-3.5 requires administration rights in all supported operating systems.

Usage

The Maemo Flasher-3.5 Tool is a command line utility that supports N900 device with Fremantle 5.x platform releases and N800, N810 and N810 WiMAX devices with Maemo Diablo 4.1.x platform releases.


Image:Ambox_notice.png
 Older Maemo devices (like Nokia 770) and older Maemo platform releases may require a specific Flasher Tool from Maemo Flasher Tool archive.


Flasher-3.5 Tool is run from a Linux, Windows or Mac host computer as a command line tool, and it sends data and commands to the connected Maemo device via USB.

Among other purposes, Flasher-3.5 Tool can be used to:

  • flash a Maemo device with a Diablo or Fremantle FIASCO image
  • flash a Maemo device (N900 only) internal memory card with an eMMC image
  • unpack a FIASCO image into separate parts like kernel and rootfs images
  • flash unpacked kernel or rootfs images to the Maemo device separately
  • change a Maemo device to R&D mode and back to normal mode
  • set and clear R&D flags for a Maemo device when in R&D mode
  • boot a Maemo device with additional kernel startup parameters

All command line parameters supported by Flasher-3.5 Tool together with some basic usage examples are documented in the Help.txt file available as part of the tool installation package. Flasher-3.5 Tool binary gives command line help if it is run without any parameter or with "--set-rd-flags" or "--clear-rd-flags" parameters.

Setting Maemo device to flashing mode

Before flashing a Maemo device with a FIASCO image, it is recommended to firstly set the Maemo device into flashing mode. When you attempt to flash the device, it tries to enable flashing mode on the fly, in which case setting the device to flashing mode explicitly is not required, but there have been reports that with some clients this does not work.

For Nokia N800 and N810 with a Diablo image, flashing mode can be enabled by following these steps:

  1. Switch off the Maemo device (and do not use a charger)
  2. Attach a USB cable to the Maemo device and computer
  3. Switch on the Maemo device while holding down the Home (N800) or Swap (N810) hardware button

For Nokia N900 with a Fremantle image, flashing mode can be enabled by following these steps:

  1. Switch off the Maemo device
  2. Press and hold down the 'u' key
  3. Connect a USB cable between the Maemo device and host PC while holding down the 'u' key
  4. When the USB cable is connected, it powers the Maemo device and sets it to flashing mode
  5. When the USB icon appears in the upper right-hand corner, the Maemo device is in flashing mode
  6. Release the 'u' key


If perfprmed correctly, the USB image is visible in the upper right-hand corner of the screen.

The Maemo device waits indefinitely for Flasher-3.5 input when it is in flashing mode. If flashing is tried without first setting the Maemo device to flashing mode, image flashing may fail because the Maemo device may not be able to change to the flashing mode automatically.


Image:Ambox_notice.png
 Make sure that the device battery is fully charged before doing any sort of flashing operation because flashing fails if the battery runs out of power during the image flashing operation, and the device may not be able to charge an empty battery after a failure in flashing.

Command line options

SYNOPSIS 

Usage: flasher-3.5 [OPTIONS]

OPTIONS 
-F, --fiasco=ARG  
Location of a FIASCO image
-k, --kernel=ARG  
Location of kernel image
-n, --initfs=ARG  
Location of initfs image
-r, --rootfs=ARG  
Location of root JFFS2 image
--cmt-2nd=ARG  
Location of CMT FIASCO 2nd image
--cmt-algo=ARG  
Location of CMT FIASCO algorithm image
--cmt-mcusw=ARG  
Location of CMT FIASCO MCUSW image
--cmt-no-verify  
Disable verification of CMT programming
-x, --xloader=ARG  
Location of X-Loader image
-s, --secondary=ARG  
Location of NOLO secondary bootloader image
-2, --2nd=ARG  
Location of NOLO cold flasher ("2nd") image
-u, --unpack[=ARG]  
Unpack a FIASCO image
-f, --flash  
Load and flash all supplied images
-l, --load  
Only load all supplied images
-b, --boot[=ARG]  
Boot the kernel with optional cmdline
-R, --reboot  
Reboot the board (e.g. after flashing NOLO)
-i, --read-device-id  
Print out the device type
-S, --serial-port=ARG  
Serial port used for cold flashing or "usb"
-I, --init-port  
Only initialize the serial port
-c, --cold-flash  
"Cold flash" the device
-h, --hw-revision=ARG  
Specify product code and HW revision
--enable-rd-mode  
Enable R&D mode on the device
--disable-rd-mode  
Disable R&D mode on the device
--set-rd-flags[=ARG]  
Set R&D mode flags on the device
--clear-rd-flags[=ARG]  
Clear R&D mode flags on the device
--query-rd-mode  
Query the device R&D mode status and flags
--set-hw-revision[=ARG] 
Set HW revision override on device
--flash-only=ARG  
Flash only certain components
-U, --usb-device=ARG  
Specify USB device to use (bus:device address)
Valid --flash-only options 

nolo, kernel, initfs, rootfs

Valid --set-rd-flags and --clear-rd-flags options 

no-omap-wd, no-ext-wd, no-lifeguard-reset, serial-console, no-usb-timeout, sti-console, no-charging, force-power-key

Flasher-3.5 usage examples

To get a list of supported command line options, run 
      $ flasher-3.5
      $ flasher-3.5 --set-rd-flags

If you wish to perform commands other than image flashing, then omit the -R option as rebooting the Maemo device may reset the given configuration change back to normal.

To enable R&D mode for Maemo device, run 
      $ flasher-3.5 –-enable-rd-mode
To warm flash an image to the Maemo device, run 
      $ flasher-3.5 -F <FIASCO image> -f -R

Replace <FIASCO image> with the the firmware image you downloaded from Nokia. This flashes a FIASCO image to your Maemo device and reboots the device after it is completed (at which point you can unplug the USB). The procedure is the same for all other image flashing components (for example, separate kernel, rootfs and eMMC images), see the option list for details.

To print out Maemo device product code and product HW revision, run 
     $ flasher-3.5 -i
To cold flash (needed usually when the bootloader has been changed), run 
      $ flasher-3.5 -c -h RX-51:<hw_id> -F <FIASCO image> -f -R

The code "RX-51" used in the example is the product code for the N900 device. The <hw_id> is the product HW revision, which is a 4-digit code. Both product code and HW revision can be found from the type label of the device to be flashed. The type label is on the back of the device, underneath the battery.

To flash a kernel with separate kernel image, run 
      $ flasher-3.5 -k <kernel image> -f -R
To flash just a part of the whole FIASCO image (for example, only rootfs) run 
      $ flasher-3.5 -F <FIASCO image> --flash-only=rootfs -R

This flashes only the rootfs from the <FIASCO image> and reboot the device.

To access to the individual parts of the FIASCO image, run 
      $ flasher-3.5 -F <FIASCO image> -u

which expands <FIASCO image> to your current directory.

Tips & troubleshooting

  • If you get a "Permission denied" error, then make sure you have execution rights to the Flasher-3.5 binary executable.
  • You need to have administrator rights or run command with sudo in Linux if you get errors like this: Error claiming USB interface: Operation not permitted
  • It may help to connect the USB cable directly to the computer USB ports, avoiding the use of a hub. Using the USB ports in the back of a computer can also work better than using those in the front.
  • Flash always the FIASCO image first and after that the latest available eMMC image, if needed. The eMMC image does not need to be flashed every time when a new FIASCO image is flashed. Flashing the eMMC image also overwrites all data from the internal memory card.
  • If warm flashing fails, try to switch off the power from the Maemo device, remove the USB cable and try again from the beginning.
  • If cold flashing fails, try to warm flash the Maemo device first using the same FIASCO image. After that try cold flashing again.
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