
Guide: How to Install OTA Updates Zip File Via Stock Recovery Method -2: Using QPST Tool You can either follow the QPST Tool method or QFIL Tool method in order to install the Stock ROM on your Lenovo Z5s device.

You can Unbrick and unroot your device by flashing back the stock firmware which will give you your device’s warranty back.

If you are facing some software related issues, then you can flash the stock ROM to fix that. You can Fix Bootloop and Black screen issue by flashing back the stock firmware. There are loads of benefits of having the stock ROM of an Android device. (Android 10, 3.5 GB) Steps to Install Lenovo Z5s Firmware (Unroot/Unbrick and Fix Bootloap) Tool Supported: QPST Tool/QFIL Tool/ ADB & Fastboot/MSM Tool.
