Brick (electronics) - Systems

Systems

In principle any device with rewriteable firmware, or certain crucial settings stored into flash or EEPROM memory, can be bricked. Many, but not all, devices with user-updateable firmware have protection against bricking; devices intended to be updated only by official service personnel generally do not.

Amongst devices known to have bricking issues are: older PCs (more recent models often have dual BIOSes or some other form of protection), many mobile phones, handheld game consoles like the PlayStation Portable and Nintendo DS, video game consoles like the Nintendo Wii, Xbox 360 and PlayStation 3, many SCSI devices and some lines of hard disk drives and routers.

At least some older consumer market router models can become unresponsive when the user tries to define a subnet mask that does not contain one contiguous run of 1's and then 0's. If even a single bit is set so that it breaks one of the runs, the router may become bricked, unresponsive to any standard troubleshooting or resolving procedures listed in the manual. Unbricking the router may require opening the case, shorting some jumper pins on the board, then connecting the router by the USB cable to an old PC with USB 1.1 hardware, running a special DOS level program supplied by the manufacturer, and powering the router up. This procedure will flash the router to factory settings and original firmware.

Electric cars such as the Tesla Roadster can brick if the battery is completely discharged.

Sometimes an interrupted flash upgrade of a PC motherboard will brick the board, for example, due to a power outage (or user impatience) during the upgrade process. It is sometimes possible to unbrick such a motherboard, by scavenging a similar but otherwise broken board for a BIOS chip, in the hopes that the BIOS will work even halfway, far enough to boot from floppy. Then it will be possible to retry the flash process. Sometimes it is possible to boot from floppy, then swap the old presumably dead BIOS chip in and reflash it.

Read more about this topic:  Brick (electronics)

Famous quotes containing the word systems:

    People stress the violence. That’s the smallest part of it. Football is brutal only from a distance. In the middle of it there’s a calm, a tranquility. The players accept pain. There’s a sense of order even at the end of a running play with bodies stewn everywhere. When the systems interlock, there’s a satisfaction to the game that can’t be duplicated. There’s a harmony.
    Don Delillo (b. 1926)

    No civilization ... would ever have been possible without a framework of stability, to provide the wherein for the flux of change. Foremost among the stabilizing factors, more enduring than customs, manners and traditions, are the legal systems that regulate our life in the world and our daily affairs with each other.
    Hannah Arendt (1906–1975)

    We have done scant justice to the reasonableness of cannibalism. There are in fact so many and such excellent motives possible to it that mankind has never been able to fit all of them into one universal scheme, and has accordingly contrived various diverse and contradictory systems the better to display its virtues.
    Ruth Benedict (1887–1948)