Hard Reset ZTE R231
- Make sure that phone is working.
- Open Menu select the Reset Settings option.
- Then the Master Reset option and confirm it.
- Type in Security Code and confirm it by pressing left Softkey. (Default code is 0000).
- Done, after restart device is ready to work on.
Help! This doesn't work
Hard Reset will erase all of your data
All described operations you are doing at your own risk.