Locked and unlocked boot loaders
A boot loader is the first program that runs when you boot your device. Boot loader takes care and initiates your hardware and Android kernel. Without this program, our device doesn't boot. Those manufacturers of your devices usually write boot loaders and so usually they are locked. This ensures that the end users cannot make any changes to the device firmware. To run custom images on your device, boot loader has to be unlocked first before we proceed with it. Even when you want to root a device with a locked boot loader, it requires unlocking it first if there is a possible and available way to do it. Some manufacturers provide an official method to unlock boot loader. In the next section, we will see how to ...
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