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[HOW-TO] Create/Restore a nandroid backup in twrp
I was being a nice guy and helping another member create a nandroid backup of his current system, and thought since I took the time to type it out in a PM I would share it here for others that may not know how to do it. I know a lot of us can do this in our sleep, but remember we were all new once.
If you are rooting/unlocking/flashing you NEED to make backups. Sometimes things go wrong. Sometimes you don't follow instructions properly. Sometimes your wife is giving you dirty looks for messing with your phone again and you rush things. If you have a nandroid backup and you can get to recovery, you can almost always save yourself pretty painlessly.
This was tested using twrp on CleanROM 2.4. You can use whatever method you wish to get into recovery.
1. Hold down power button until Power Options menu appears
2. Select Restart
3. Select Recovery
4. Press OK (Phone should boot into twrp recovery)
5. Use volume key to navigate to "nandroid menu"
6. Press power button to select
At this point Backup Partition should be highlighted
7. Press power button to select
8. Use the volume keys to navigate to each entry you want to back up*
While highlighted press power button to place an "x" next to each entry that you wish to backup.
(I usually backup everything each time, I find it easier and safer to restore everything in one piece that I know works, more knowledgeable users may be comfortable with mixing and matching)
twrp has the great option to compress your back ups. This option will take some more time to create, but it takes up 50 - 60% less space. If you are flashing a lot of ROMs and keep back ups, this will save a ton of space.
9. After you have selected everything that you wish to backup, navigate to Backup Naowz
10. Press power button
11. Go find something to kill some time. This is going to take a while...
*From what I understand if you lose your wimax keys they are gone forever. Back them up!
Make a copy of your backup and place it on your personal computer. If something ever happens to your SD card you have a backup.
It is better to have a backup and never need it, than to need a backup and not have it.