How to make Nandroid backup to sd card and PC : Full tutorial

Nandroid backup..How many times you might have gone through that term while searching the rooting related topics? Every rooting method or procedure starts with 'Make a Nandroid backup''. What is Nandroid backup? Nandroid backup is simply the backup of your data, ROM and system. The backup is stored in the device itself and can be used in situations where issues occurs with rooting.

How to make Nandroid backup to sd card

Nandroid backup is made in the recovery mode. While recovering the Nandroid backup the device must be in the same build as the backup. Before going for thr backp make sure that the phone is rooted and CWM is working on your phone.

Steps

1. Switch off yur device

2. Switch on and reboot into the recovery mode (power on+volume up+volume down)

3. select apply sdcard:update.zip (You can navigate using volume down key)
4. You will be then redirected to the CWM recovery
5. Highlight the option backup/restore using volume up/down
6. Select the option using power button
7. Select backup from the following menu
8. When the process is completed you will be directed to the main menu. Select the option 'Reboot phone now'

How to make Nandroid backup to PC

Prerequisites

Install Busybox in the phone

If you are using Linux / OS X you have native tools

If you are using Windows install Cygwin with it netcat, pv and util-linux

ADB should be installed.

adb.exe should be in the windows path

Downloads

Busybox : https://play.google.com/store/apps/details?id=stericson.busybox.donate
Cygwin : http://www.cygwin.com/

How to backup whole memory

1. Via adb

1. Connect the phone in ADB mode and unlock the screen.
2. Open one Cygwin Terminal and enter

Code:adb forward tcp:5555 tcp:5555 adb shell su /system/xbin/busybox nc -l -p 5555 -e /system/xbin/busybox dd if=/dev/block/mmcblk0
3. Open another Cygwin terminal and enter:

Code:adb forward tcp:5555 tcp:5555 cd /path/to/store/the/backup nc 127.0.0.1 5555 | pv -i 0.5 > mmcblk0.raw
4. You will see how the image size is growing until it finishes.
2. Via Wi Fi

1. Install a FTP server on the computer
2. Set some port. Default is 21 but the below code uses 40
3. Set a home dir for the user with write permissions.
4. Usually is a good idea to put myfifo in /cache not in /data
5. Open one Cygwin terminal and enter the below code

Code:adb shell su mkfifo /cache/myfifo ftpput -v -u user -p pass -P 40 COMPUTER_IP block.raw /cache/myfifo
6. Open another Cygwin terminal and enter

Code:adb shell su dd if=/dev/block/mmcblk0p12 of=/cache/myfifo
Source

http://forum.xda-developers.com/showthread.php?t=1818321

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Improvised Unbrick Tool for the Optimus 2X

Now we have an improvised unbrick tool for Optimus 2X. This tool is somewhat similar to the USB jig method of most of the Samsung devices. 

 This tool is based off of prior efforts, such as this tool by XDA Senior Member Homero2. XDA Forum Member ProgMag has improved previous efforts by including a number of features. As ProgMag explains:

The main advantage of this tool over other tools is that in this case factory misc and lgdrg partitions are included.

The tool includes useful tools such as NVFlash, and the associated ROM and recovery files. 

How to use this tool

To use this tool, you must have installed drivers nVFlash, which of course are included.

Once installed, you only need to click on "flash.bat" and follow the instructions.

 Afterward, users will have a fully functional device with ClockworkMod Recovery and a clean slate to go flashing again. Interestingly enough, the ROM included actually isn’t factory stock. It’s a CM10 nightly from November 5th. So those who want some AOSP goodness after unbricking will actually get it. Also added is CWM 6.0.1.5. as a recovery partition.

Download link

Credits

- NVidia for NvFlash tool.
- CyanogenMod for the best great ROM
- Paul@modaco for giving first NVflash rom as base to use and learn.

Thread link

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