Hi wishbest,
Generally, the flash configuration of the OT550 is saved in three areas: factory configuration area, current configuration area, and carrier configuration area;
write generate-carrier-config saves the current configuration to the carrier configuration area. You can run the restore command to restore the current configuration to factory settings or carrier configurations, which is shown as follows:
TERMINAL(config)#restore ?
---------------------------------------------
Global Config mode command
---------------------------------------------
carrier-config Restore system to carrier config
vendor-config Restore system to vendor config
TERMINAL(config)#restore
However, the write command saves the data in the current configuration area.
Hope it will help you, thanks!