In a situation in which the module may become unresponsive, such as when a configuration record is corrupt, you may want to force the device to boot to the alternate monitor. This can be accomplished by using the module's recover jumper.
There is the primary boot monitor, accessible by entering the 'A' (0x41) character immediately on boot. This should allow you to recover the module normally. If for some reason that fails, or you cannot enter the 'A' character, the MOD5441X and NANO54415 both contain a secondary boot monitor to allow the user to recover from (virtually) all software or configuration faults. The procedure is:
The boot jumper is a pair of circular pads located near the middle line of the board near the connector.
he boot jumper is the unpopulated header 'TP1', located near the Ethernet jack.
Once in the alternate boot monitor you can access the module using IPSetup and Autoupdate. You can also download an application through the serial port using the FLA command (type help at the NB> prompt for a list of commands). The module has booted with a default configuration record. If your configuration is corrupt you can use IPSetup or the "setup" command from the serial port interface to set the configuration parameters back to good values.