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An unlocked bootloader, showing additional available options. Bootloader unlocking is the process of disabling the bootloader security that makes secure boot possible. It can make advanced customizations possible, such as installing custom firmware.
flashing lock/oem lock *** – locks an OEM unlocked bootloader. erase – erases a specific partition. reboot – reboots the device into either the main operating system, the system recovery partition or back into its boot loader. devices – displays a list of all devices (with the serial number) connected to the host computer.
On Samsung smartphones, the Samsung Secure Boot Key (SSBK) is used by the boot ROM to verify the next stages. [5] On SoCs from Qualcomm, it is possible to enter the Qualcomm Emergency Download Mode from the primary bootloader. If the verification of the secondary bootloader fails, it will enter EDL. [6] [better source needed]
A bootloader, also spelled as boot loader [1] [2] or called bootstrap loader, is a computer program that is responsible for booting a computer and booting an operating system. If it also provides an interactive menu with multiple boot choices then it's often called a boot manager .
Not much was known about the secretive Android Inc. at the time, with the company having provided few details other than that it was making software for mobile phones. [14] At Google, the team led by Rubin developed a mobile device platform powered by the Linux kernel.
When a system on a chip (SoC) enters suspend to RAM mode, in many cases, the processor is completely off while the RAM is put in self refresh mode. At resume, the boot ROM is executed again and many boot ROMs are able to detect that the SoC was in suspend to RAM and can resume by jumping directly to the kernel which then takes care of powering on again the peripherals which were off and ...
Note: The column MBR (Master Boot Record) refers to whether or not the boot loader can be stored in the first sector of a mass storage device. The column VBR (Volume Boot Record) refers to the ability of the boot loader to be stored in the first sector of any partition on a mass storage device.
Das U-Boot (subtitled "the Universal Boot Loader" and often shortened to U-Boot; see History for more about the name) is an open-source boot loader used in embedded devices to perform various low-level hardware initialization tasks and boot the device's operating system kernel.