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Screenshot of Device Manager, containing a Qualcomm device booted in the Emergency Download Mode. The Qualcomm Emergency Download mode, commonly known as Qualcomm EDL mode and officially known as Qualcomm HS-USB QD-Loader 9008 [1] is a feature implemented in the boot ROM of a system on a chip by Qualcomm which can be used to recover bricked smartphones.
For iPhones, iPads and Apple silicon-based Macs, the boot process starts by running the device's boot ROM. On iPhones and iPads with A9 or earlier A-series processors, the boot ROM loads the Low-Level Bootloader ( LLB ), which is the stage 1 bootloader and loads iBoot; on Macs and devices with A10 or later processors, the boot ROM loads iBoot.
The most popular PowerPC emulation tools for Mac OS/Mac OS X are Microsoft's Virtual PC, and the open-source QEMU. [8] Linux dual-booting is achieved by partitioning the boot drive, installing the Yaboot bootloader onto the Linux partition, and selecting that Linux partition as the Startup Disk. This results in users being prompted to select ...
A modern PC is configured to attempt to boot from various devices in a certain order. If a computer is not booting from the device desired, such as the floppy drive, the user may have to enter the BIOS Setup function by pressing a special key when the computer is first turned on (such as Delete, F1, F2, F10 or F12), and then changing the boot order. [6]
8 GB USB storage device, or external drive formatted as MS-DOS for installation of Windows drivers for Mac hardware; 20 GB free hard disk space for a first-time installation or 40 GB for an upgrade from a previous version of Windows; A full version of one of the following operating systems:
A modern PC's UEFI or BIOS firmware supports booting from various devices, typically a local solid-state drive or hard disk drive via the GPT or Master Boot Record (MBR) on such a drive or disk, an optical disc drive (using El Torito), a USB mass storage device (USB flash drive, memory card reader, USB hard disk drive, USB optical disc drive ...
Live USB OSes like Ubuntu Linux apply all filesystem writes to a casper filesystem overlay (casper-rw) that, once full or out of flash drive space, becomes unusable and the OS ceases to boot. [citation needed] USB controllers on add-in cards (e.g. ISA, PCI, and PCI-E) are almost never capable of being booted from, so systems that do not have ...
iOS 15 is the fifteenth major release of the iOS mobile operating system developed by Apple for its iPhone and iPod Touch lines of products. It was announced at the company's Worldwide Developers Conference on June 7, 2021, as the successor to iOS 14 and released to the public on September 20, 2021.