Talk to Gadgets

Alright Guys, I know you all had to wait too much and were going through a Bad time. And i m Pretty sure that many Of You even Ended Up Selling Your N900 just like Mig . But Now You Dont have To Worry Any More, As Our Dear Friend, cpitchford, Nokia Discussion Forum’s Mobile Visionary, Has helped Us by Giving us a Very Precise and Professional Method on How to Fix N900 Reboot Bug! So are You Ready ??

Oh, One more Thing I wanted to Tell You before Starting the Tutorial. This Post was Officially Posted on Nokia Forum, and They Even stated That Doing This will Not Effect Your Warranty, So Just be Chilled and Relaxed!

Step By Step Tutorial On How to Fix N900 Reboot Bug :-

1) Download flasher 3.5 :-

• Flasher can be obtained from the Nokia website:

http://tablets-dev.nokia.com/maemo-dev-env-downloads.php

Download and install flasher onto your computer. For more information on using flasher, you can see the maemo page here:

http://wiki.maemo.org/Flasher

1. Turn off your N900
2. Remove the battery
3. Insert the battery.. but leave it off
4. Plug the USB cable into your computer.. This may not work in ALL ports on your computer. Sometimes ports at the back of the computer work better than those at the front.
5. Open the keyboard on your N900, press and hold the ‘u’ button and plug the USB cable into the N900.. keep the u button pressed.
6. The Nokia logo should appear on your device, a small USB icon should appear in the top right of the N900 screen. The backlight may not light up leaving the screen dark. You can release the u button now
7. NOW ENABLE R&D MODE TO START THE DEVICE
8. Use flasher application. On windows 7 this may mean running in windows xp mode
   
9. Open a cmd window (start run cmd) then enter these commands:                                                                                                     cd “program filesmaemoflasher-3.5″
   flasher-3.5.exe –enable-rd-mode
10. Flasher should run for a few seconds then exit.. If it hangs “waiting for suitable device” Try another port on your computer. Try a different computer. Ask questions here. Flasher doesn’t always work on all machines
11. Remove the USB cable from your N900 and turn it on. It should boot up. Note that there is a small spanner icon under the Nokia logo If your device still does not boot:
    Check that the spanner icon is present when you turn the device on. If it is not, the device is not in R&D mode.. Start going through these instructions again
    If the spanner logo is present and the device still does not boot, stop.. this process may not help you
12. Turn the N900 back off
13. Press and hold the u button on the keyboard and plug the USB cable in. Keep the u button pressed
14. The Nokia logo should appear on your device, a small USB icon should appear in the top right of the N900 screen. The backlight may not light up leaving the screen dark. You can release the u button now.
15. NOW DISABLE R&D MODE TO START THE DEVICE
16. In the cmd window on your pc, re-run the flasher command with a different optionflasher-3.5 –disable-rd-mode
17. Remove the USB cable and turn the phone back on

CHANGE ENABLE_OFF_MODE TO STOP RANDOM REBOOTS

I have written a tool to help stop the random reboots on N900 devices. This tool issues the following command

echo 0 > /sys/power/enable_off_mode

and updates the /etc/pmconfig file to make the change permanent

To use the tool you will need to install the rootsh package:

http://maemo.org/downloads/product/raw/Maemo5/rootsh/?get_installfile

Now download the fixpm.sh file:

http://chris.intrepid.cx/N900/fixpm.sh

Open an x terminal and type the following command

sudo gainroot

sh MyDocs/.documents/fixpm.sh enable

If you would like to disable the update, you can use the following commands:

sudo gainroot

sh MyDocs/.documents/fixpm.sh disable

By the Way, One last thing i Would Love to inform You guys is that, I Dont Deserve Any Credit for this Fix. This Fix was Posted By A very Thankful Person, cpitchford, I m Just trying to Spread it

This Stuff Looks Hard Isnt it ? So What You Can Basically Do is Just Update Your Firmware to Firmware version 1.2009.51 or The Lastest Firmware Version, Then You Wouldnt Need to Go through All this process So Cpitchford and Talktogadgets would recommend you to update your device to the last firmware, rather than Going through all this process..