Zyxel USG 1900 [358/438] Notification of a damaged recovery image or firmware

Zyxel USG 1900 [358/438] Notification of a damaged recovery image or firmware
Chapter 54 File Manager
ZyWALL / USG (ZLD) CLI Reference Guide
358
1 The boot module performs a basic hardware test. You cannot restore the boot module if it is
damaged. The boot module also checks and loads the recovery image. The ZyWALL / USG notifies
you if the recovery image is damaged.
2 The recovery image checks and loads the firmware. The ZyWALL / USG notifies you if the firmware
is damaged.
54.9 Notification of a Damaged Recovery Image or
Firmware
The ZyWALL / USG’s recovery image and/or firmware could be damaged, for example by the power
going off during a firmware upgrade. This section describes how the ZyWALL / USG notifies you of a
damaged recovery image or firmware file. Use this section if your device has stopped responding
for an extended period of time and you cannot access or ping it. Note that the ZyWALL / USG does
not respond while starting up. It takes less than five minutes to start up with the default
configuration, but the start up time increases with the complexity of your configuration.
1 Use a console cable and connect to the ZyWALL / USG via a terminal emulation program (such as
HyperTerminal). Your console session displays the ZyWALL / USG’s startup messages. If you cannot
see any messages, check the terminal emulation program’s settings (see Section 1.2.1 on page 22)
and restart the ZyWALL / USG.
2 The system startup messages display followed by “Press any key to enter debug mode within 3
seconds.
Note: Do not press any keys at this point. Wait to see what displays next.
Figure 31 System Startup Stopped

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