ZTE Blade V70 Vita: Fix PIN Not Accepted with Factory Reset or Safe Mode

Differentiating PINs and Data Backup

• 💡 Understand the difference between the security PIN you set and the SIM card PIN; they have different screens.
• 🔑 If you have alternative unlock methods like face or fingerprint unlock, use them to back up your data to Google Drive or an SD card before proceeding.

Factory Reset via Recovery Mode

• ⚠️ To perform a factory reset, first turn off your device completely.
• ⚡ Then, press and hold the power button and volume up key simultaneously until the ZTE logo appears, then release the power button and continue holding volume up.
• ⚙️ Navigate to 'wipe data/factory reset' using volume keys and confirm with the power button.
• 🔄 After the reset, select 'reboot system now' and set up your device again, restoring data from your backup.

ZTE Support and Remote Reset

• 🤝 If a factory reset is not an option or you wish to avoid data loss, contact ZTE customer support. Proof of ownership may allow them to remove the lock without data loss.
• 💻 If you cannot prove ownership, and a factory reset is your only option, you can perform a remote factory reset using Google's Find My Device via another internet-connected device.

Safe Mode for PIN Issues

• ❓ If your PIN is correct but the phone rejects it, third-party app interference might be the cause. Enter Safe Mode to rule this out.
• 🚀 To enter Safe Mode, restart the device, and once the ZTE logo appears, wait 3-5 seconds, then hold the volume down button until the phone vibrates.
• 🔒 In Safe Mode, navigate to Settings > Security and Privacy > Device Unlock > Screen Lock, select 'None' or 'Swipe' to remove the lock, then restart to normal mode.