R&D mode
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== R&D mode flags == | == R&D mode flags == | ||
| - | You can enable some R&D mode flags (<code>flasher-3.5 --set-rd-flags=''<flag>''</code>) for various features: | + | You can enable some R&D mode flags (<code>flasher-3.5 --set-rd-flags=''<flag>''</code>) for various features (this is N8x0 below): |
*<code>no-lifeguard-reset</code> - Disables the lifeguard process (lifeguard reboots the device when an important system process crashes). | *<code>no-lifeguard-reset</code> - Disables the lifeguard process (lifeguard reboots the device when an important system process crashes). | ||
Revision as of 03:31, 11 June 2011
You can enable R&D mode by passing the --enable-rd-mode flag to the flasher.
Note: This flag does not need to be passed to the EMMC image if you are flashing that as well.
You must use a Linux or a Mac OS X computer to enable R&D Mode, as the Windows update wizard will not allow you to enable/disable R&D Mode. Although, the Windows flasher will disable R&D Mode if you use it to reflash a device that has R&D Mode already enabled.
To switch back to production mode, use --disable-rd-mode.
What R&D mode does
sudo gainrootin the console can be used, without installing anything extra, to gain a root shell.
- The power button turns on the tablet with a shortpress press as opposed to the longpress normally required.
- N900: The keyboard backlight behind the left and right side of the keyboard flickers in response to system activity.
R&D mode flags
You can enable some R&D mode flags (flasher-3.5 --set-rd-flags=<flag>) for various features (this is N8x0 below):
no-lifeguard-reset- Disables the lifeguard process (lifeguard reboots the device when an important system process crashes).serial-console- Enables the serial console (the serial port pins are next to the battery) and causes a shorter battery life.no-omap-wd- Disables the watchdog on the OMAP processor.no-retu-wd- Disables the watchdog on retu.no-usb-timeout- Unknownno-charging- Disables charging via the USB port. bme will still be running in the background.