Checksum Error on restoring userdata*****.backup file I gave my Phone (Celkon A95) into a service centre because of touch malfunctioning before it I backed up the user data by pressing Power and Vol+ buttons, it gave me a backup file called userdata20130902_131223.backup. After a few days I got my phone back and when I restored the data it gave me "Checksum Error". I'm unable to restore my previous data. Is there any way get back at least messages and contacts?

Sorry for my bad english.
Stock Android recovery backup files can be restored with a Nandroid custom recovery, if you simply repack them into tar archive.

i put this two command lines in a dirty shell script (extract + repack as tar). thanks to ektoric figuring out his gunzip method!

the shell script will convert your backup file into nandroid backup automatically. download >bckp2cwm.zip&lt; at

From http://forum.xda-developers.com/showthread.php?p=65374561#post65374561