LG Magna H502f Hard Reset Mode

LG Magna lg-H502f Hard reset: 

- Hold down Volume Down + POWER button 

- Release only POWER button when LG Logo appears 

- Press once POWER button while still holding Volume down

fastboot

# boot into fast boot mode
adb reboot boot loader

# get flashing ability status
fastboot flashing get_unlock_ability

fastboot oem unlock
fastboot flash unlock

Flashing Android Device With Heimdall

Here I'll explain how to flash image files to an android device using Mac Os X console. This should apply to linux console too. (in this case a GT-I8190 whith a broken screen)

First download and install heimdall:

http://wiki.cyanogenmod.org/w/Install_and_compile_Heimdall

Get into download mode (Odin Mode)

VOLUME_DOWN+MENU+POWER -> VOLUME_UP

Connect USB cable and check if your device is detected:

$heimdall detect --usb-log-level error
Device detected

Change log level to debug if you need more info

Then download the pit information:

heimdall print-pit > print-pit

From now on you only need to find the partition names and flash your images with that name:

for example first find the name of recovery.img partition

$ grep -B1 recovery.img print-pit
Partition Name: Kernel2
Flash Filename: recovery.img

then flash recovery img (here i choose not to reboot because I will flash more than one image then reboot)

heimdall flash --no-reboot --Kernel2 recovery.img

ChuangZhuo RPI TFT LCD V2.1

/etc/modules:

fbtft_device rotate=270 name=itdb28 gpios=reset:15,dc:3,wr:2,cs:7,db00:17,db01:18,db02:27,db03:22,db04:23,db05:24,db06:25,db07:4


Product Page:
http://www.dx.com/p/chuangzhuo-rpi-tft-lcd-adapter-plate-2-4-tft-lcd-screen-touch-sensor-module-for-raspberry-pi-285311

Raspistill Instant Capture

If you run raspistill each time you want to take a shot, it does not work fast enough. In order to get instant shots it is much more useful to use the "signal mode".

In signal mode, raspistill waits for a SIGUSR1 signal from another process. You can invoke it like this:

raspistill -t 0 -s -o /tmp/shot.jpg

-s signal mode

-o output file

-t 0 disable default 5s timeout

and then when ready, send the signal to take a shot:

pkill -SIGUSR1 raspistill

or

pkill -10 raspistill

that's it.

* If you don't specify -t 0 parameter and disable default 5s timeout, raspistill will quit after 2 or 3 shots (actually will quit after spending total 5 seconds).

Android Full Backup/Restore w/o Root

• adb backup -apk -shared -all -f  BACKUP-apk-shared-all.ab
• adb restore BACKUP-apk-shared-all.ab

Android Command Line Package Manager PM

• The list of installed packages

# pm list packages
package:com.andrew.apollo
package:org.servalproject
package:com.google.android.ears
package:com.android.voicedialer
package:com.android.defcontainer
package:de.schaeuffelhut.android.openvpn
package:de.carknue.gmon2

• Uninstall package

# pm uninstall org.servalproject