"I changed my iPhone screen lock passcode yesterday but forgot what it is. Now I was locked out of my iPhone which stays disabled with a black screen. Any suggestions on how to unlock the iPhone?"
Don't panic if your iPhone is locked with forgotten password. Actually it's simple to fix the problem if you follow the instructions provided by Apple as below:
1. Connect iPhone to computer.
2. Select iPhone in iTunes "Devices" and click "Summary".
3. Click "Check for Update" to see whether there is a new version for iPhone software.
4. Click "Restore" and follow the instructions to complete the restore process.
5. Choose "Restore from iTunes backup" when iOS Setup Assistant asks to set up your iPhone.
**Please note that during the restore process in Step 4, you will be recommended to back up your iPhone. To do that, you can either use iTunes or another professional backup tool called iPhone Data Recovery.
This iPhone backup tool is recommended here for it can not only backup iPhone data but also recover lost data on iPhone when you forgot the passcode. Unlike iTunes, it allows you to selectively restore lost data from iPhone to Mac or Windows systems. Now download the free trial version and follow the tutorials below to backup or retrieve data from passcode locked iPhone in 3 steps only.
After opening iPhone Data Recovery, connect iPhone to computer.
Click "Start Scan" button to scan iPhone 5S/5/4S. If you are using iPhone 4 or iPhone 3GS, you need to follow the 3-step instruction below in an exact way to get it enter scanning mode:
Hold iPhone and click "Start" button in the program;
Hold down "Power" and "Home" buttons simultaneously for exact 10 seconds;
Release "Power" button and keep holding "Home" button until it enters scanning mode.
After the scan, all data on the iPhone would be listed in categories. Choose the files you want to recover or backup and restore them to computer by clicking "Recover" button.
iPhone Data Recovery - As a mighty iOS data recovery software for iPhone, can not only backup or recover data on iPhone when passcode is forgotten, but also recover all types of data including photos, videos, notes, contacts, messages, bookmarks, whatsapp, etc when restoring iPhone to factoring settings, jailbreaking iPhone, upgrading iPhone to latest iOS, and any other cases.