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Wednesday 24 July 2013

NANDROID BACKUP AND RESTORE.

  • Nandroid backup is very much required if you are flashing a new custom ROM.
When you flash some ROM zip files to the phone, you may end up in boot-loops or you may brick your phone too. In that case you can revert back to the previous ROM by restoring the Nandroid backup. Always keep a backup of the stock ROM before flashing anything to the phone.

REQUIREMENTS:

  • SDCARD with minimum 1 GB free space.
  • cwm.zip

Follow these simple steps,

  1.Nandroid backup:
            Keep the cwm.zip in the sdcard( not within any folder) and turn off the phone. Now go to recovery by pressing volume up+power+home buttons together. From the stock recovery select 'apply update from sdcard' and select the cwm.zip, now you are in cwm recovery. From cwm recovery select 'backup and restore'. you will see three options,
1.Backup
2.Restore
3.Advanced restore
 Select the first option 'backup', and it starts to backup your current rom. You will see these lines during the process
'backing up system', 'backing up data', backing up android secure' etc. And the whole ROM will be backed up in the sdcard in the folder 'clockworkmod' .
 Once the backup is finished, you can reboot your phone.

2. RESTORE:
     This is when you want to restore the backed up ROM. The backed up ROM will be saved in a folder 'clockworkmod' in the sdcard. 
  Switch off the phone and boot into cwm recovery, here select 'backup and restore' and select the 'restore' option. Now select the backed up ROM, and select YES. The date and time of backup will be the name of the file. After the restore completes reboot the phone.

Now you will be thinking what's the use of the third option 'Advanced restore'. From this option you can separately restore data or system or cache. 
          

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