Originally Posted by dflt
What is the best way to do it?
Just to quickly answer your question properly. Here is how I did it. There might be other ways, but this one worked quite well for me:
Connect your phone with usb debugging enabled and make sure it's well connected:
#You should see some number now.
make sure you got superuser rights:
a # will appear
dd if=/dev/block/mmcblk0p11 of=/sdcard/nvram.img
#or whatever you wanna call the backed up .img file.
adb pull /sdcard/nvram.img
#or whatever you called the backup img
you ll find it in your adb folder then. Make sure you keep it safe
*Important commands are in RED
. Maybe I missed something, so if you have problems, just tell me. But that should be pretty much it.
Of course you need adb set up, for this to work. There is a small package in my Noob-HOW-TO and you can also find A LOT of tutorials all over xda about adb.