This is the official, first-party utility provided by Spreadtrum/Unisoc for flashing firmware. While its primary purpose is flashing .pac files, it can be used to execute a factory reset or wipe specific user-data blocks to clear locks. It is completely free and highly stable. 2. SPD Upgrade Tool (Flash Tool)

Follow these steps carefully to flash your device and remove the lock screen restriction. Step 1: Install the USB Drivers

For tools that directly reset the lock (like SPD Research Tool or TFM Tool Pro SPD), the lock is removed during the process and you can simply reboot the phone.

Repairing software that causes the device to cycle endlessly. Official Links and Safe Software Downloads