In this post I will explain how to revert and fix the issue where the Restrictions Passcode has been forgotten in your IPhone or iPad. No Need to Factory Restore!
I have done it for free in my IPhone 4S with IOS 7.0 and worked like a charm!
As far as I know it works just fine with other devices and versions as well.
The Steps are as follows:
Connect your IPhone or IPad to your PC or MAC, go to iTunes, Check "This computer" and click Back Up Now.
Download a software like iBackupBot or similar. You can download it from this location. I have used the version: V 5.0.3 (10/01/2013) and V 5.0.4 (10/08/2013)
Do not disconnect the iPhone or iPad from your PC or MAC. (Conenct it again if you have done it).
After installing and running the iBackupBot the software will try to read information from your device. The iPhone will probably display a "trust" message. Press "Trust it" on the IPhone/iPad so the Software could read data from it.
Now, go to the just backed up line in the tree root, and then drill down to System Files --> HomeDomain --> Library --> Preferences and search for the file called com.apple.springboard.plist as shown in the picture below.
Note: Take a look in which backup (date and time) you perform the modification, since later on will be used to restore.
Select the file (You can search for it using the search textbox) and click on the "Open" icon. A registration window will be opened, but do not worry, just click on cancel and it will open the file for edition.
Now you will be able to add the following 2 lines to the file:
I have used 1234 for the restrictions passcode, you may change it to any other 4 digits.
The two lines must be placed before the dictionary finalization tag (</dict>), and not after, as explained by mistake in other forums. See snapshot below.
Click on save, and close the file. you may close the application as well.
Ok, we are almost done. Go to iTunes, select the device. In the Summary tab, search for Restore Backup... (Not Restore Iphone).
Find my iPhone must be turned off before the restore. See snapshot below.
Then, choose the backup to restore...
The restore may take several minutes...
Note: After the restoring operation, your iPhone/iPad will restart and show a black screen with the white apple in the middle as when you turn on your device, and it will take some time until the device finish this stage and turn on. don't freak out, after a while, your device will turn on.
Go to Settings-->General-->Restrictions and tap 1234 or the code selected for you in the line added above, and voila, there you have it!
Your feedback will be appreciated!
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Disclosure: This post explains how to change the forgotten restrictions passcode in order to use it to access the restrictions page of your device. It does not explain how to disable restrictions.
Final Note: Use this tutorial at your own risk. As far as I know, these procedures are not supported by apple.