Some of these are old and only work on older builds. Some are for classcs only, some plus only, some DP only, some previewer only or internal only, and some work on all boxes. But all have been proven to work one time or another.
To activate the power off codes do the fallowing: While the power is off hit options 3x then enter in the power off code, the lights should blink on your unit. Then turn box on.
To activate some classic only power off ocdes on a plus do the fallowing: While the power is off hit options 3x enter in 8675309 hit options 3x again and enter in the classic power off code and turn box on.
Japan Sega Dreamcast Power off codes - Thanks To Tommie - These codes should work on the Sega Dreamcast although activating them can be tricky. Activate after sega logo, during black screen and the first page with the WebTV logo. Codes need to be entered very quickly. Options 3x (S3 on DC keyboard) then enter code.
| Numeric Code | Alternate Code | Function |
| 46725 | unknown | Changes to and from PAL size -- If in PAL size (640x480), go to NTSC (normal mode). If in NTSC, goto PAL size |
| 061185 | unknown | Stops Demo (Plus) |
| 815963 | unknown | ? |
| 7264 | unknown | Delete Old Tellyscript |
| 7265 | unknown | Delete Old Tellyscript |
| 112357 | unknown | Default to WeCare Phone Settings) |
| 080813 | unknown | Reset Prereg Telephone Number in Serial NVRAM |
| 10679 | unknown | ? |
| 411 | unknown | Tech Info Page |
| 1776 | unknown | Sets the default interfacing to US (and not Japan) |
| 03774 | unknown | ? |
| 2403774 | unknown | ? |
| 0000 | unknown | power up for messagewatch |
| 112357 | unknown | Clears Phone Options |
| 32768 | unknown | Reste Flash |
| 77437 | unknown | Secret Phone Options |
| 07081969 | unknown | Boot into minibrowser (force approm download) (classic) |
| 4930132 | unknown | set BYOISP to enabled |
| 8673094 | unknown | Invalidates ram image. Exits build. |
| 8675309 | unknown | Jenny (MiniBrowser) |
| 324 | unknown | ? |
| 314159 | unknown | Disable secure download checking (used on pre-2014 builds as they don't support encrypted downloads) |
| 242424 | unknown | Crash Log Report (Internal only?) |
| 9964 | unknown | scrub partition map |
| 55325532 | unknown | delete partitions |
| 48627931 | unknown | Delete Group Database - the client and service often want to check to see if broad groups of files are present and valid. This is done by checking groups, instead of individual files. Sometimes, the group gets out of sync with the individual files. This code destroys the group database, so the service will download everything again (IR, EPG, etc.), or at least take a look at individual files. |
| 7225000 | unknown | Blanks TV listings -- deletes current set of TV listings |
| 7335000 | unknown | Blanks IR Blaster Codes -- deletes current set of IR blaster codes |
| 7335001 | unknown | Extend Code Set History |
| 7335002 | unknown | Reset Code Set History |
| 1111 | unknown | power up for datadownload |
| 6145539 | unknown | ? |
These poweroff codes were also found messing around with the Sega DreamCast except these are in client: form, so i guess they arn't really poweroff codes but we will call them that anyway. These weren't noticed until 2020 some how slipped by us even though we had been messing with the Sega Dreamcast for many years. First time I have seen client cmd's like this. Makes me wounder if client cmd poweroff codes like this worked on the actual box (should test that someday). Note: weird how a 1 is added to the beginning of each code.
| Dial USA 800 number. - client:secretcode?number=11800 | Reset flash - client:secretcode?number=132768 |
| Delete Tellyscript - client:secretcode?number=17264 | Erase Pre-reg number - client:secretcode?number=1080813 |
| Force register - client:secretcode?number=110679 | Force crash - client:secretcode?number=16145539 |
| Tourist mode - client:secretcode?number=190210 | Disable KKC learning - client:secretcode?number=1663 |
| Fill user dictionary - client:secretcode?number=1444 | Show info page - client:secretcode?number=1411 |
| Use Open Browser - client:secretcode?number=111075 | Erase SET5 Pseudo Serial number - client:secretcode?number=177383 |
These power off codes were discovered by Eric Mac in March of 2004. Very little testing has been done to determine what exactly they do, what box they work with, etc. Feel free to try these out (AT YOUR OWN RISK!) If you can determine what they do then please drop me a line and let me know.
| Numeric Code | Alternate Code | Function |
| 6970 | unknown | ? |
| 9964 | unknown | Apparently deletes tv listings |
| 01181 | unknown | ? |
| 92753 | unknown | Shows SSID in blocks of four |
| 4930132 | unknown | Does stuff with BYOISP, it set it to enabled. |
| 6060847 | unknown | Boot into retail demo. Do code once- it's on; enter code the second time- it's off |
| 6142702 | unknown | Deletes ATVEF Cache |
| 6145539 | unknown | Blinks then the hd spins for awhile no apparent diffrence upon connection. SecretCode CrashMe? |
| 6145568 | unknown | Tries to do something with file://rom/testonly/qats/PowerOn.qats |
| 7335000 | unknown | Blanks IR Blaster Codes - deletes current set of IR blaster codes |
| 7335001 | unknown | Extend Code Set History |
| 7335002 | unknown | Reset Code Set History |
| 7335003 | unknown | Set Code Set Max History |
| 8673094 | unknown | Invalidating MaxiBrowser image in RAM & Rebooting… |
Thanks to Mike the WebTV Corp. for leaving these power off codes below at one of his Tripod sites and good ole E2 for finding these while doing a search. LMFAO! Anyway here are some new and old power off codes explained in corp terms. With a little more info than my list above provided.
The following document is a list of secret codes that can be used on boxes to trigger certain functions.
Also, there is a new code for bringing up the Kiosk Demo mode (you must have a kiosk build for this to work [11/6/96) To use these codes, turn the box off, wait at least five seconds, and then type the codes into the keyboard or remote control. The lights on the front of the box should cascade, indicating that the code was received and acted upon. When entering codes, the "Options" button clears any pending input, so it's a good idea to press the "Options" button before entering a secret code.| Numeric Code | Alternate Code | Function |
| 217 | up, down, right, go | Go to phone settings |
| 32768 | home, back, up, down, go | Clear flash NV RAM (including tellyscript, dialing options, TV listings, etc.) |
| 080813 | home, back, down, up, go | Clear serial NV RAM (emergency 800 number) |
| 07081969 | home, right, left, back, go | Force flash download |
| 024995 | -none- | Boot into diags |
These codes available in Production Builds, only with Client 1.1 (or later)
| Numeric Code | Alternate Code | Function |
|---|---|---|
| 411 | home, back, recent, go | Shows technical information for the box |
| 7264 | scrolldown, back, home, scrollup | Clears tellyscript (not dialing options, etc.) - used to be a bug in classic clients that made this secret code work improperly, but with the forced upgrade to client 1.4, 7264 now works as expected. |
| 7265 | unknown | Another version of 7264, not currently in general use. |
| 77437 | back, back, up, up, go | "Spooky Dialing Options" |
| 18004693288 | up, down, left, right, up, down, left, right, go | Force signup again |
| 0000 | unknown | Do MessageWatch mail check (unsupported, but seems to work) |
These codes are in non-production builds only:
| Numeric Code | Alternate Code |
Function |
| 93288 | left, right, left, right, go | Boot into connect setup |
| 90210 | -none- | Boot into tourist mode |
| 031158 | home, back, left, right, go | Starts up the Kiosk Demo mode. |
| 061185 | -none- | Turn off Demo mode on a retail box. If in retail group on the service, demo mode will be reset when it connects and will go back to demo. |
| 0000 | -none- | Check MessageWatch, Fetch Video Ad. Terminal must have connected to the service, with MessageWatch activated, at least once since it was plugged in. Box should power up, check for mail, and fetch a video ad. |
| 744744 | unknown | Boot into VFatHax |
These codes work only on LC2 units
| Numeric Code | Alternate Code |
Function |
| 8675309 | unknown | Boot into Mini-Browser for downloading Boot or App ROMS (primarily development use for flashing BootROMS) |
| 314159 | unknown | Disable secure download checking (used on pre-2014 builds as they don't support encrypted downloads) |
| 159753 | unknown | Delete Disk Cache |
| 48627931 | unknown | Delete Group Database - the client and service often want to check to see if broad groups of files are present and valid. This is done by checking groups, instead of individual files. Sometimes, the group gets out of sync with the individual files. This code destroys the group database, so the service will download everything again (IR, EPG, etc.), or at least take a look at individual files. |
| 7445000 | unknown | Delete Video Ads from Disk |
| 55325532 | Unknown | Delete Everything But The Browser |
These codes work only on internal builds of LC2 Internet terminals
| 24682468 | unknown | Do Not Use Unless You Know What You're Doing! -- Trashes the browser image |
| 13571357 | unknown | Do Not Use Unless You Know What You're Doing! -- Writes a few spare bytes into NVRAM, so the checksum will fail |
| 7225000 | unknown | Blanks TV listings -- deletes current set of TV listings |
| 7335000 | unknown | Blanks IR Blaster Codes -- deletes current set of IR blaster codes |
| 1111 | unknown | Forces Data downloads in non-debug, non-production builds |
This may only work in Export Builds (not clear)
| 46725 | unknown | Changes to and from PAL size -- If in PAL size (640x480), go to NTSC (normal mode). If in NTSC, goto PAL size |
By way of more detail, the 8675309 code isn't likely to be used for customers, as production units should have a burned-in bootROM, as opposed to the flashable bootROM from development boxes. It's conceivable that it might be used on a box with its client corrupted at some point, but primarily it's used for downloading bootROM.
LC2 boxes can engage in secure boot and app ROM downloads. This plugs a security hole that an individual could induce a box to download a fake version of the client (if someone could write one to fool the client). Early LC2 builds (before 2014) aren't capable of dealing with the encrypted download, hence must be flashed using secret code 314159. May also be useful eventually for customers if for some reason the encryption is causing problems with the download.
| Numeric Code | Alternate Code | Function |
| 417 | unknown | unknown |
| 93289 | unknown | unknown |
| 504 | unknown | unknown |
| 503 | unknown | unknown |
| 56000 | unknown | unknown |
| 802 | unknown | network settings / web proxy (hit power) |
| 2020 | unknown | Displays Box ID |
| 8086 | unknown | unknown |
| 415865838 | unknown | unknown |
| 415865828 | unknown | unknown |
| 415865818 | unknown | unknown |
| 415865808 | unknown | unknown |
| 555 | unknown | unknown |
| 32768 | unknown | unknown |
| 32767 | unknown | unknown |
| 8088 | unknown | unknown |
| 8675309 | unknown | unknown |
| 55325532 | unknown | unknown |
| 219 | unknown | unknown |
| 218 | unknown | unknown |
| 1200 | unknown | unknown |
| 217 | unknown | unknown |
| 12357 | unknown | unknown |