OS image. Systems In principle any device with rewritable firmware, or certain crucial settings stored into flash or EEPROM memory, can be bricked. Many, but not all, devices with user-updatable 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, PlayStation 4 and Xbox One, 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 1s and then 0s. 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. Un-bricking 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 (first generation) 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 un-brick 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 a floppy, then swap the old presumably dead BIOS chip in and re-flash it. On some Gigabyte boards, it can also be possible to re-flash the bricked main BIOS using a backup BIOS. Some vendors put the BIOS chip in sockets, allowing the corrupted BIOS chip to be removed and reprogrammed using an external tool, like a universal programmer or an Arduino. Online and mobile services Mobile phones have a