[geekmaster]

Originally Posted by heeby

Can I set that mode via the device through some commands? How do I enter the "diagnostics" screen?

Entering (and leaving) diagnostic mode requires a little knowledge to avoid problems.

WARNING! TECHNICAL DETAILS AHEAD!

Spoiler:

You should read a little about it in the K4 hacking wiki, or various posts in the "simple debricking" (and other) threads in the Dev Corner. Start with the Master Index sticky thread.

Basically, getting to the diags menu involves adding an "ENABLE_DIAGS" file (no file extension) to the USB drive and restarting the kindle. Getting out of diags is a bit more complicated (especially the first time). Restarting will keep booting to the diags menu until you disable it.

A safer way is to boot directly to diags using the MfgTool program from the "select boot" thread (in the tools index wiki, linked from the master index). That way restarting just goes back to the normal main startup.

To run the "shipping mode" script, you need a way to launch it (not in the GUI menus), which you can do from the SSH prompt in the diags menu (but you need to use linux commands once at the kindle command prompt).

If you do not wish to learn the details, I suggest not doing it.