Sending akashimorino to ICU UART port starts the Event Shell which shows a prompt like this:

K433>[1]

Typing ? gives all available commands:

[AECOM_DispFLK]
[AECOM_SetFLK]
[AEITG_]
[APEX.DebugPropStillPhoto]
[APEX.DebugSceneMode]
[APEX.LogLevel]
[APEX.LogOnly]
[APEX.ManualExposureMode]
[APEX.PoLogLevel]
[APEX.ReCalcStillPhotoParam]
[APEX.RewriteMode]
[APEX.Test1]
[APEX.Test2]
[ATest_RegistEventProc]
[ActivateDL]
...

These function are so called Event Procedures and have been registered by calling register_func before.

However, they cannot be executed blindly on UART. Also functions which expect arguments and aren't actually that useful on UART are listed here. Some examples:

memcpy
sprintf
sscanf
...

Some functions are dangerous and may brick the camera:

ClearFactoryMasterROMProtection
eep_erase
...

Typing exit terminates the console and makes it inaccessible until next reboot:

K433>[1]quit
Console All Closed

Commands can be filtered by typing a command partially and end it with ?. Typing eep_? for example will list all commands, starting with eep_:

K433[1]>eep_?
[eep_erase]
[eep_forcefrom_service]
[eep_forcefrom_ring]
[eep_boot_change_ring]
[eep_force_sync]
[eep_force_read]
[eep_write]
[eep_sync]
[eep_write_single]
[eep_read]
[eep_show_service]
[eep_boot_change_service]
[eep_boot_check]

K433[1]>eep_

It will also try to autocomplete the command as much as possible. When typing eep_boot? for example it will partially be auto completed to eep_boot_ch and lists the reamining possible commands:

K433[1]>eep_boot?
 [eep_boot_change_ring]
 [eep_boot_change_service]
 [eep_boot_check]

K433[1]>eep_boot_ch

If there is only one possible command, the whole command will be autocompleted so it can be executed by just hitting enter again:

K433[1]>eep_boot_che?
 [eep_boot_check]

K433[1]>eep_boot_check