Forgot Pattern on VIVO IQOO Z1? Complete FRP & Screen Lock Recovery Guide

Factory Reset Protection (FRP) is one of the most important security features ever introduced on Android. First rolled out with Android 5.1 Lollipop, it was designed with one clear mission: to make stolen phones useless to thieves. If a device is reset without first removing the linked Google account, FRP locks the phone and requires the exact same email and password to proceed. For the hundreds of millions of Android users worldwide, this has dramatically reduced phone theft and the black‑market trade in stolen handsets.

You buy a second‑hand VIVO IQOO Z1 from a marketplace, only to discover the previous owner never removed their Google account. You reset your own Z1i after months of disuse, and realize you no longer remember the password to the Gmail account you set it up with. You inherit a phone from a family member who cannot provide their credentials. In these moments, FRP stops being a shield and becomes a wall one that can turn a perfectly good smartphone into an expensive paperweight.

Inside, we explain exactly how Factory Reset Protection works on the MediaTek‑powered VIVO IQOO Z1 and Z1i, why your pattern and PIN survive a factory reset in the first place, and most importantly,   the official, authorized, and legally sound ways to regain access to a device you rightfully own. We deliberately do not publish exploit code, leaked flashing tools, or step‑by‑step instructions for methods that rely on Android security bugs because those same methods are what phone thieves rely on every day.

If you are the rightful owner of a VIVO IQOO Z1 or Z1i and you are locked out, read on. This article will walk you through every legitimate channel available, from VIVO's own official support to Google Account Recovery, and explain what to do and what not to do at every step.

How to Fix VIVO IQOO Z1| Z1i Locked with Pattern and FRP

Here are the steps to fix an Android VIVO IQOO Z1| Z1i that is locked with a Pattern or PIN because you forgot the previously created Pattern or PIN using the Unlock Tool application:

How to Fix VIVO IQOO Z1| Z1i Locked by Pattern or PIN

1. Run the Unlock Tool Application
2. Select the VIVO Brand
3. In the Left Menu, Find and Select VIVO IQOO Z1| Z1i
4. Click [PRELOADER] FACTORY  RESET + FRP
5. Connect the VIVO IQOO Z1| Z1i (while powered off) while pressing the Volume Up + Down buttons simultaneously
6. Wait for the Unlock Tool process to detect, read, and perform a Factory Reset on the VIVO IQOO Z1| Z1i
7. Done, the VIVO IQOO Z1| Z1i will automatically restart and enter the Setup Menu

How to Fix VIVO IQOO Z1| Z1i Locked by Google Account FRP

1. Run the Unlock Tool Application
2. Select the VIVO Brand
3. In the Left Menu, Find and Select VIVO IQOO Z1| Z1i
4. Click [PRELOADER] ERASE FRP
5. Connect the VIVO IQOO Z1| Z1i (while powered off) while pressing the Volume Up + Down buttons simultaneously
6. Wait for the Unlock Tool process to detect, read, and perform a Factory Reset on the VIVO IQOO Z1| Z1i
7. Done, the VIVO IQOO Z1| Z1i will automatically restart and enter the Setup Menu

Additional Info: If an error occurs during the bypass process, please try changing the option in the PRELOADER Auth section. The error may be caused by an incompatible security path. 

Not sure how to get an UnlockTool account? Don't worry, you can rent UnlockTool at an affordable price on Shopee: Cheap UnlockTool Rental.

Important Note: 

• Before performing the Factory Reset process using the UnlockTool application, make sure you have installed the appropriate drivers (Qualcomm / MediaTek / Spreadtrum) on your laptop or computer according to the chipset of the device you are working on. Without installing the drivers, the mobile device will not be detected or recognized by the UnlockTool system.
• The Factory Reset process on the Infinix Smart 9 will erase all internal data on the phone. If you wish to keep your photos, videos, and other files, please select the [EDL] SAFE FORMAT option.

That is the tutorial on how to easily fix an Android Vivo iQOO Z1/Z1i that is locked with a pattern or PIN and also Google Account FRP, which you can try yourself at home. Good luck, and hopefully it works.