If SP Flash Tool returns a "BROM Error," it usually means the drivers are not communicating or the Auth Bypass failed. Always ensure you are using the correct scatter file for your specific chipset; using the wrong file can lead to a hard brick.
Unlocking a bootloader is a high-level procedure that carries risks. Ensure you have the following ready: A Windows PC and a high-quality USB cable. MediaTek USB VCOM drivers installed on your computer. The specific Scatter file for your device model.
Open flash_tool.exe from your extracted folder. In the "Download" tab, click on "Choose" next to the Scatter-loading File and select the scatter text file from your device's firmware folder. sp flash tool unlock bootloader
Navigate to the "Format" tab and select "Manual Format Flash." You will need to input specific hex addresses for the unlock partition. These addresses vary by device. You can find them by opening your scatter file in a text editor and searching for the "partition_name: seccfg" or "unlock" section. Copy the linear_start_addr and the partition_size into the corresponding fields in SP Flash Tool. Step 4: Execute the Unlock
Disconnect your phone and power it on. You may see a "Red State" or "Orange State" warning during the splash screen; this is a normal indication that the bootloader is unlocked. If SP Flash Tool returns a "BROM Error,"
A complete backup of your data, as this process will perform a factory reset.
If you share these details, I can find the exact hex addresses or scatter files you need. Ensure you have the following ready: A Windows
Unlocking your bootloader typically voids your warranty and lowers the device's security profile. Only proceed if you intend to modify the system software and understand the technical implications of running an unlocked device. To provide more specific instructions for your device: What is your and chipset ? Do you have the official firmware downloaded? Are you stuck on a specific error code ?