Have you got your iPhone 4 locked due to entering the wrong passcode for many times? In this case, you will get a message of "iPhone is disabled" and you have to try again in 1 minute. If it is your friend who accidentally causes, it's okay to easily unlock it by typing the correct passcode in a minute. But what if you just forget the screen passcode? How to unlock iPhone 4 in such a situation? There are 3 methods illustrated in this tutorial,aiming at teaching you to remove your iPhone 4 screen lock simply.
- Method 1. Unlock iPhone 4 Passcode via iCould
- Method 2. Unlock iPhone 4 Passcode with iTunes
- Method 3. Unlock iPhone 4 Passcode via the Passcode Unlocker
Part 1. How to Unlock an iPhone 4 with iCloud
When your iPhone 4 is disabled or you forget the screen passcode of it, you can use iTunes to unlock by restoring your iPhone. But What if you don't sync the iPhone with iTunes or iTunes may not recognize your device? How to unlock iPhone 4 without iTunes under the circumstances? Using iCloud is quite a nice choice. There is no need for you to install any additional app, you just visit icloud.com on the browser with another device and log in with your iCloud account. Then, just press on "Find My iPhone" to choose "All Devices". Afterwards, you need to select your locked iPhone 4 among the devices list. Finally, click "Erase iPhone" button to restore your disabled device. When the operations are completed, your iPhone 4 screen lock will be removed. You will set a new simply passcode the device.

Part 2. How to Unlock iPhone 4 via iTunes
As mentioned above, iTunes can be applied to remove the locked screen of iPhone 4 through restoring the device to the factory settings. It's just that your iPhone 4 has been synchronized with it. If "Find My iPhone" function is not enabled on your iPhone 4, you can use iTunes to unlock. Please remember to back up your important files with it before performing. Follow the steps below to operate.

Step 1: Open iTunes and connect your iPhone 4 to the trusted computer;
Step 2: Once iTunes detects the iPhone 4, you can click the icon of it to choose "Summary" option;
Step 3: If you need to back up, you will manually back up by clicking "Back Up Now";
Step 4: After backing up, just tap on "Restore iPhone" to restore your iPhone 4 to factory settings and passcode lock is going to be removed;
Step 5: Do not rush into unplugging your iPhone. Now, it is needful to click "Restore Backup" beside the "Back Up Now" button to restore data to your device.
If this is the first time that you connect the iPhone 4 to iTunes on the computer, you should set your iPhone into recovery mode first. The step-by-step guide below will tell you how to unlock iPhone 4 passcode lock on this occasion.

Step 1: Firstly, launch and run iTunes. Then, plug your iPhone 4 to the computer with USB cable;
Step 2: Secondly, just keep holding the "Home" and "Power" buttons until the screen turns black;
Step 3: After this, you should release the "Power" button and continue to press the "Home" button until you see "Connect to iTunes" on the iPhone screen;
Step 4: iTunes will detect the iPhone in the recovery mode and a window will pop up to ask you to choose "Update" or "Restore";
Step 5: Lastly, you need to click "Restore" to unlock the locked screen of iPhone 4.
Part 3. How to Unlock an iPhone 4 with Joyoshare iPasscode Unlocker
Talking about unlocking iPhone without passcode, you all think about iTunes and iCloud subconsciously. However, they are not available in some cases. So when iTunes and iCloud fail to be useless, how to unlock iPhone 4 passcode? At this point, Joyoshare iPasscode Unlocker is a more reliable choice for you, which is aimed to unlock screen lock without passcode on iPhone, iPad or iPod touch with easy steps. Besides, it can be applied to all kinds of situations where the screen is locked. For instance, you can't remember the screen passcode, you want to factory reset a disabled iPad, reset iPhone to sell and so on.
Other than that, Joyoshare iPasscode Unlocker supports to remove 4 types of screen passcode. In addition to unlocking common 4-digit and 6-digit passcodes, it has the ability to remove Touch ID and Face ID. What's more, it is compatible with a series of iOS device models from iPhone 4 to iPhone XR/Max/XS and the latest iOS version.
Key Features of Joyoshare iPasscode Unlocker
Unlock iPhone 4 without passcode quickly
Support to remove the screen lock in all situations
Can unlock 4 kinds of screen passcode
Compatible with many iDevice models and the newest iOS version

If you do not know how to unlock iPhone 4 passcode lock with Joyoshare iPasscode Unlocker, do as follows. You can install it on either Mac or Windows. The following content just takes Mac as an example.
Step 1 Launch Joyoshare iPasscode Unlocker
In the first step, you should launch the latest version of Joyoshare iPasscode Unlocker and connect your device to the computer. After this program detects your iPhone 4, you can click "Start" to proceed.
Step 2 Boot iPhone 4 into DFU or recovery mode
In this step, you ought to set your iPhone 4 into DFU mode as instructs on the screen. If it fails, please click the link at the bottom of the screen to change for recovery mode. Then just tap on "Next".
Step 3 Download and verify firmware package
Once successfully entering into DFU mode or recovery mode, Joyoshare iPasscode Unlocker will recognize your device model and show all the information. You need to confirm if it is correct. Next, you should download and verify the firmware package with the "Download" button.
Step 4 Unlock iPhone 4 without passcode
When the process of verification is finished, you have to press on "Unlock" to unzip the firmware package. After a while, this unlocking tool will remove your iPhone 4 screen lock.
Conclusion
How to unlock iPhone 4? As demonstrated in this article, iTunes and iCloud are capable of unlocking your iPhone 4 without passcode. Compared with them, Joyohsare iPasscode Unlocker is more professional and unlimited because of its accurate algorithm and powerful unlocking feature. In any case, you can use Joyoshare unlocking tool to crack your iPhone 4 screen lock without passcode. When iTunes or iCloud are not able to work for you well, you are recommended to adopt Joyoshare iPasscode Unlocker. Please don't forget to back up data on your device in order not to lose important information. It is better that you should read the post completely before making a decision.