If the above methods can't help you erase iPhone that won't turn on, don't worry, there's still a way to erase your iPhone without turning it on. Using an iPhone eraser tool like
If your iPhone, iPad, iPod touch, Mac, or Apple Watch is lost or stolen, you can erase it in Find Devices on iCloud.com.
Erase your iPhone, iPad, or iPod touch and restore it to factory settings. Go to Settings > General > Reset, then tap Erase all Contents and Settings.
Factory reset or hard reset deletes complete data and settings from your iPhone. All your photos, videos, contacts, call logs, passwords, messages, browsing history, calendar, chat history, notes, installed apps, etc., get deleted from the iOS device.
Apple IDs are permanent. They do not disappear because you reset the iPhone. You can continue to use it normally after resetting the iPhone.
Hard resetting means removing everything that is on your iPhone. Performing a hard reset wipes out all the data from your device. On the flip side, soft reset pertains to simply turning off your phone and restarting it.
You can reset iPhone without Apple ID by using the Recovery Mode. Press the 'Home' button and 'Wake/Sleep' button until the 'Recovery' screen appears. Then press the 'Volume Down' and 'Wake/Sleep' buttons. This may slightly differ on various iPhone versions.
Someone else's iPhone is useless to anyone other than the owner, provided Find My iPhone is enabled. Activation Lock prevents the iPhone from being used even after a software reset, and the same feature lets the rightful owner track down lost devices.
That means you will be able to find the location of your iPhone even if it runs out of battery. Even better, location tracking will keep working even when the iPhone is reset to factory settings.
However, if you find an iPhone and wish to use it but cannot bypass the security levels then you can still use the device. Although the device can be used again, in most cases the data gets erased, and you find yourself a phone with default settings and completely erased memory.
Models with Face ID: Press and release the Volume Up button, then press and release the Volume Down button. Press and hold the button on the top edge until your iPhone restarts in recovery mode. iPhone 8 or Later: Press and release the Volume Up button, then press and release the Volume Down button.
4: Use the Hard Reset Feature
Are you wondering how to reset a locked iPhone without a computer? Simply press and hold the Volume buttons and Home button at the same time. iPhone X, 8 & Newer: Press and hold the Volume up button, then the Volume Down button, and the side button at the same time.
Go to iCloud.com > Choose the Find iPhone option. Click All Devices at top, then select the locked iPhone you want to do factory reset. Click Erase [device] > Enter your Apple ID password when asked. After factory resetting your locked iPhone, you can restore it from an existing backup and use it as normal.
Press and quickly release the volume up button. Press and quickly release the volume down button. Press and hold the side button. When the Apple logo appears, release the side button.
If you can't remember your passcode when you try again, use a computer to put your iPhone in recovery mode. Recovery mode allows you to erase the iPhone, giving you access to set it up again. After you erase your iPhone, you can restore your data and settings from a backup.
Restart your phone
If your phone is frozen with the screen on, hold down the power button for about 30 seconds to restart.
Factory Data Reset
Step 1: Press and hold Power and Volume Down buttons together for a few seconds until you see the Android logo on the screen. Step 2: Use Volume Up and Volume Down keys to navigate to Recovery Mode. Step 3: Press the Power button.
There are various methods for unlocking your locked Android phone, like using your Google account and booting into Recovery Mode. One good option is to use the third-party software, such as PassFab Android Unlock, to bypass the lock screen and restore the phone to factory settings.