Speaking of "iPhone locked up," it may refer to different situations. For example, your iPhone may just get frozen or unresponsive due to unknown errors. Or more seriously, you forgot the iPhone passcode and it's locked up for a long time.
Depending on the specific situation you are in, there are corresponding solutions for you to get out of the problem. Generally, if your iPhone is frozen or unresponsive, you can just restart the iPhone, perform a hard reset, or check the power supply. For more solutions in such a case, you can refer to Apple's guide to fix the issue. While if you are locked out of your iPhone because you enter the wrong passcodes more than five times, the solutions vary a lot.
As a self-protection measure, your iPhone will become disabled if you enter a wrong passcode over six times or more. That's when you will see the notification "iPhone is disabled try again in xx minutes" or "iPhone is disabled connect to iTunes."
If you see the first notification on your iPhone, you still have a chance to unlock your iPhone properly if you can remember the password. While if you have no chance to recall the correct passcode or you see the second notification, you have to erase your iPhone to remove the lock screen passcode. Afterward, you can set up the device as it is new and use it again.
To erase the locked iPhone without a passcode, you will need iTunes or a third-party iPhone unlocking tool to help. They both erase all data and settings on your iPhone, including the lock screen passcode, so that you can get into your iPhone again.
Since resetting the device will remove all data on your iPhone, you will lose everything on the iOS device if you don't have a backup available. Besides, you will need to use the original Apple ID and passcode on the device when you set it up. (Resetting the locked iPhone won't remove the Apple ID information on it.)
Apple has provided a detailed guide to fix a disabled iPhone. Thus, you can go to the guide on what to do if you forgot the passcode on your iPhone to learn how to fix the locked iPhone.
If you prefer a more straightforward way to unlock the iPhone, you can't miss the iPhone unlocker - Qiling MobiUnlock. It helps to unlock iPhone without the passcode. Whether you are using a 4-digit code, 6-digit code, Touch ID, or Face ID, it will remove it for you.
To reset the locked iPhone:
Step 1. Have your iPhone connected to the computer and run Qiling MobiUnlock. Select "Unlock Screen Passcode" to proceed.
Step 2. After your device is detected, click "Start" to continue.
Step 3. Verify your device model and download the suitable firmware for your iPhone. If the firmware package has been downloaded, just select it by clicking on the "Select" button at the bottom of the screen.
Step 4. After firmware download, click "Unlock." Enter the needed information in the box and click "Unlock" again to regain access to your locked iPhone without hassle.
Step 5. Wait for the unlock process to complete. Then, you can set up your iPhone, iPad, iPod.
"iPhone locked up" may indicate different problems with your iOS device. If it is simply frozen, you can easily solve the problem by restarting or hard reset. If it's locked or disabled due to wrong passcode attempts, it will be necessary for you to reset the device by erasing all data and settings on it.
Specify your situation and apply the corresponding solution to fix the "iPhone locked up" issue.