No, the only way is to follow the directions in http://support.apple.com/kb/HT1212 by restoring via recovery mode, all of which requires a computer running iTunes. And, it may take more than one attempt to get the restore to work fully.
If you happened to lose the data on your iPhone due to wrong deletion, jailbreak, factory settings restore, software update and so on, you may need to restore iPhone to find the lost files back. With one recovery software, you can easily restore iPhone data without iTunes
Last edited by Egspriinn; 23rd February 2017 at 11:38 AM.