The Smart Phone Flash Tool (SP Flash Tool) is the official flashing utility from MediaTek. The latest version, v5.2404, has been updated throughout 2025, making it more compatible with new devices and Android versions.

The device disconnects and reconnects continuously when plugged into a PC.

This means the LibUSB filter was not applied successfully. Re-run the Auth Bypass tool and make sure the connection remains locked before clicking download in SP Flash Tool.

: On Windows 10/11, you may need to disable driver signature enforcement before installing the legacy "MTK USB Port" drivers via Device Manager.

Match device region and carrier codes precisely before downloading firmwares.

What (e.g., an OTA update, or a custom ROM install)? Share public link

Before you begin, you must prepare your computer:

The updated versions of these utilities have introduced several automated scripts that make the process significantly safer and more accessible for non-technical users.

: Ability to force devices into BROM (BootROM) or Preloader mode for flashing even when hardware buttons are unresponsive.

: When connected to a PC, Windows Device Manager rapidly cycles between detecting a port and dropping it every few seconds.

The exact process varies by tool and device, but the general principle is to reflash a working Preloader. Below is a generalized guide using the powerful , which is free and effective.

Click next to the Scatter-loading file option and select the text scatter file ( MT6xxx_Android_scatter.txt ) from your downloaded stock firmware folder.