How to Flash MTK (Mediatek)- firmware ?
Step 1: Download the firmware flash file to your computer.
Step 2: Extract the file 7zip or WinRAR.
Step 3: Download the correct USB driver.
Step 4: Extract the Firmware file.7zip or WinRAR.
Step 5: Install the MTK USB Driver.
Step 6: Download MTK-SP Flash Tool & MCT MTK Auth Bypass tool
Step 7: Run sp flash tool. &MCT Mtk Aut Bypass tool
Step 8: Load scatter files from extracted firmware folder
Step 9: Connect your Device using USB Cable.
Step 10: Now Click the Download / upgrade firmware of SP flash tool to start flashing.
Step 11: And wait for the process to finish and please do not unplug your device before finishing the process.
Step 12: A green ring display for flash successes will appear at the top
Flash Full Guide On firmware94 Youtube Channel.