How do I factory reset my iPhone without a computer or password?

1. How to Reset iPhone without Passcode and Computer
  1. Go to www.icloud.com, and enter your Apple ID and Password.
  2. Navigate to “Find iPhone” tab and select it.
  3. Click “All Devices” and select the device you want to factory reset.
  4. Click “Erase [device name]” to reset your iPhone.

How do I force my iPhone to factory reset?

Wipe all content and settings from iPhone
  1. Go to Settings > General > Transfer or Reset iPhone. If you’re erasing your iPhone because you’re replacing it with a new iPhone that you have on hand, you can use extra free storage in iCloud to move your apps and data to the new device. …
  2. Tap Erase All Content and Settings.

How do I factory reset my iPhone without turning it on?

On iPhone 8 and later: Press and quickly release the Volume Up button then Volume Down button. Then, press and hold the Side button until you see the connect to iTunes screen. On an iPhone 7 or 7 Plus: Press and hold the Side and Volume Down buttons at the same time.