One of the most powerful features of this setup is . These allow you to "patch" a base DTB at runtime. If you plug a new "Hat" or "Shield" into a Raspberry Pi, the firmware can apply a small DTBO to tell the kernel, "Hey, there's a new I2C sensor on these pins now," without you ever having to touch the core OS or main firmware files. Pro-Tip: Reverse Engineering
U-Boot loads the DTB, but the kernel reports "Bad device tree blob" or "Invalid magic number." Cause: The DTB stored in flash or eMMC has become corrupted, or the firmware loaded the wrong size. Fix: Re-flash the DTB. Check the DTB magic number: dtb firmware
How to customize the dtb (device tree binary) on the Raspberry Pi One of the most powerful features of this setup is