If boot1 is completely corrupted but boot2 remains intact (common when only the first-stage preloader was damaged), you can recover by cloning boot2 to boot1:

Within SP Flash Tool, check all remaining partition boxes (system, boot, userdata, etc.). Click .

To fix preloader issues, you typically need a combination of drivers and specialized software:

To successfully fix an MTK device, it helps to understand what happens during the boot sequence and why things go wrong. What is the MTK Preloader?

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