N900 in R&D Mode
 

so just for kicks, I flashed the N900 with the --enable-rd-mode.

I was glad to see the boot up screen being in line with tradition. The N770 icon is sported under the Nokia banner and the boot text is also similar to the N770/N8x0.

What was interesting was the way the keyboard backlight flickers when the device is locked. The backlight under the keys on the left and right side of the keyboard flickr probably in response to system activity.

I also realized that the rd mode is the only way to get root access without a network connection. The only other way would be to install the rootsh/gainroot deb file in Red-Pill mode. Oh wait, the Red-Pill is slated for removal in a future update..oh well.

Anyway, If you all find something interesting in rd mode, please share.

Re: N900 in R&D Mode
 

Yes, you can remove the "probably" here. :-)

Re: N900 in R&D Mode
 

anyone knows how to switch back to normal mode from R&D?

Re: N900 in R&D Mode
 

change enable to disable


run flasher with no arguments to get all switches.

Re: N900 in R&D Mode
 

One side of the kb flashes for one thing and the other for another (clock interrupts and kernel power state changes perhaps?)

Igor did tell me at the Summit but I can't for the life of me remember what the two were, and which way round.

Anyone know exactly?

Re: N900 in R&D Mode
 

anyone knows how to disable the keyboard light in r and d mode

Re: N900 in R&D Mode
 

Edit /etc/pmconfig and change "sleep_ind 1" to "sleep_ind 0", then reboot

Re: N900 in R&D Mode
 

thanks a lot, I will try

Re: N900 in R&D Mode
 

Awesome news about being able to turn off lights.
I might try this when I crack open Android.

Re: N900 in R&D Mode
 

I'm bumping up this old thread to ask a question.

Is it "safe" to leave an N900 in RD mode permanently?

I know that it disables some (or all) of the watchdogs, but does this effect Maemo's stability?

Re: N900 in R&D Mode
 

To disable RD Mode ...

type

:> flasher.exe --disable-rd-mode [enter]

Re: N900 in R&D Mode
 

I'm going to try leaving mine in R&D mode because I don't want the thrice damned watchdogs rebooting for no good reason whenever I load the device a little. Might disable the flashing lights as above. I don't think R&D mode has any other disadvantages / extra power usage apart from the flashing lights. If anyone knows otherwise please let me know!

Re: N900 in R&D Mode
 

Help me, it's not responding n900 with nokia logo and wrench key bellow after running,
maemo_flasher-3.5_2.5.2.2/flasher-3.5 --set-rd-flags=no-ext-wd,no-lifeguard-reset --enable-rd-mode -f -k Downloads/zImage -R
following tutorial http://talk.maemo.org/showthread.php?t=56524
Removing batery not works, after putting back same screen.
was trying to boot from sdcard

Re: N900 in R&D Mode
 

Have you tried to take the sd card out and boot the phone with the keyboard in/out?

Re: N900 in R&D Mode
 

Same logo with wrench key

Re: N900 in R&D Mode
 

I think the best shot you download the stock kernel and reflash (only the kernel, not the rootfs).

itry this:

Re: N900 in R&D Mode
 

Re: N900 in R&D Mode
 

I have the same problem like jukzh ... when I turn off my device ... press the U ... plug in the usb ... it automaticaly starts the device and it show that is in USB mode and the wrench Icon is still under the Nokia Logo ... and the flasher can't find the device ... Please Help !!

Re: N900 in R&D Mode
 

Here's the answer:
http://talk.maemo.org/showpost.php?p...postcount=2381

Re: N900 in R&D Mode
 

Thenks Jukzh ... just fixed the R&D mode thanks dudes ;)

Re: N900 in R&D Mode
 

I have done both the disable command and flashing of hte device but the rd mode is still active... any help guys...

Re: N900 in R&D Mode
 

thanks rohanhole... just solved it :)