What is a Nandroid Backup ?
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Developers always prefer Android phone or tablet over their iPhone or other platform devices because of the ability for customization of Android devices using custom ROMs or launchers. However, if you are not so sure what you are doing while you install another ROM or if you change from one to another every other day, knowing that you can get recover your whole system to a certain point in time is very convenient.
Basically, this so-called Nandroid backup can save you a lot of trouble in case you soft-brick your device. In just a few clicks, your whole system is restored and your device is fully functioning again as if nothing ever happened. In this short guide, I’ll give you the simple steps so that you can make a backup yourself to be on the safe side.
How to do a Nandroid backup
- A rooted phone with a custom recovery installed.
In order to be able to make a Nandroid backup, your Android device has to be rooted and needs to have a custom recovery tool. If your device isn’t rooted, don’t worry and check out our rooting how-to.
Go into recovery
To get into your recovery, you first need to boot your device into the bootloader. With many devices, this can be done by turning it on holding down the volume down and power button. However, since it depends on what device you have.
Do the Nandroid Backup
- Go to “Backup”
- Choose the partitions you want to back up. If you’re not sure what to choose, simply leave the default selections.
- Make the backup by swiping to the right at the bottom.
- Your device should now perform the backup process, once that’s done you can reboot your device.
- Go to “Backup and restore”
- Choose “Backup”
- Your device should perform the backup now
- After successful completion, select “Go back” and choose “Reboot system now” to reboot your device.
Transfer the Nandroid Backup to a computer
Now, depending on the data you own in your phone, your backup might take away quite some space. To avoid that, you can transfer the whole Nandroid backup to your computer and delete it on your device. When you want to restore your device, you only need to transfer it back.
Connect your device to your computer and go to the TWRP folder on your device. In there, a folder containing your backup can be found. If you have several on your device, they will be separated so that you can choose only the folder you need. After you successfully copied the folder, you can delete the one on your device.
The approach is the same as above. The location of CWM backups is usually located in /data/media/clockworkmod/backups. This means the data folder situated in the root folder, not the sdcard folder. People have been reporting that they were not able to “see” the backup files and, therefore, not able to copy them. One approach is to use your favourite Android file explorer app (mine is ES File Explorer) and copy the backup folder to another one such as your camera folder “DCIM”. Now, check this folder using your computer to see if the backup is visible.
Restore your device using your Nandroid backup
That’s an easy one as well. Simply boot into recovery, select “Backup” or “Backup and restore” in CWM and choose the restore option. Now you can choose the backup you want to use and restore your device. Once that’s finished, reboot your device and you’re done!
I hope these steps help you make a Nandroid backup. If you have any questions, let me know in the comments!