Navigation Secret Keypad

2007TahoeLTZ4x4 · Jul 12, 2008

Im not sure if this has been discussed here before but theres a secret keypad for the navigation systems on our navi systems.

1-Hit the hard menu button

2-Goto Display settings

3-Hold your finger in the bottom left hand corner (approx 5 seconds)

4-Keypad appears

The only codes I know of are
295660 a diagnostic menu
9448 is a more extensive version of 295660.
660 also works but you have to turn off the ignition and wait several minutes before the radio exits this menu.

DO NOT CLEAR/RESET ANYTHING. I am not responsible for you messing up your radio.

Anyone else have more codes?

I was reading on other sites of one to disable the OK prompt or to make it once every 50 times. The code they were throwing around was 1791 but ours accept 6 digits so who knows.

I think this could be used in place of a lockpick for just the dvd in drive functionality. Maybe even to access some new customizations?

If you want to see more pictures of the menus themselves....http://s274.photobucket.com/albums/jj242/2007TahoeLTZ4x4/NAV PIN SCREEN/

randyp · Jul 15, 2008

Sorry, I don't have any more codes as I didn't know about this secret menu. Thanks for the info though..

Mikenewb · Jul 15, 2008

Has anyone else tried this or has gotten any more codes for it?

Rollin Thunder · Jul 16, 2008

just went out and tried it. 9448 does not work, when you it ok it just goes back to the nav screen, 295660 has the most options. 660 has less options but different options than 295660 like microphone and button testing.

ibobby · Jul 16, 2008

just tried it in the 07 Denali. keypad "did" come up. WOW! good find man. We're getting closer.

ajs800 · Jul 16, 2008

do any of these codes allow you to deactivate any of the "in motion" limitations? What are items do they allow you to change?

2007TahoeLTZ4x4 · Jul 16, 2008

the 9448 code works on mine....ill take some pics and post what shows up in different screens...the only thing is that none of these have options to turn on/off only diagnostics (like microphone level or touch screen calibration)

i really doubt there is a dvd in motion code but there could be im more hoping not having to hit the ok button everytime i use the nav or more features etc etc

ibobby · Jul 16, 2008

I was thinking the same thing. There may not be any such code.
If there is, maybe its only works in Denso units made for non-US countries. :confused2: Hopefully its a software bypass added in.

9448 didnt work for me. After entering it, it went back to the screen with the hidden button. I'll retry it later. I did notice that once you're on the keypad screen, you can enter codes and move through menu "while in motion".

one othe thing..When playing a DVD, the in-dash(on screen) controls allow you to scroll left or right. This give you different menu options. One of the options is "DVD Setup". Nothing much on the screen. I didnt try touching parts of the screen for hidden buttons. no luck. But I will try again when i have more time.

2007TahoeLTZ4x4 · Jul 17, 2008

does anyone here have a newer nav disc than mine...my pn is 15934919 your disc could hold the key to what i need to possibly find some more codes

more specifically...if you care to fight the fight...put your nav disc in your computer and look to see if there is a file named "LOADING.KWI" and then PM me

from what ive read on other forums this is an update file for the software on the radio itself...others that saying 9448 does not work leads me to beleive that your radio is a newer version of the software than mine

randyp · Jul 17, 2008

My disk is p/n: 25850927

295660 and 660 works

9448 and 1791 does not.

Here is a listing of the files. No LOADING.KWI that I can see

2007TahoeLTZ4x4 · Jul 18, 2008

hmm well as you can see from my album on photobucket 9448 produces some other options...does your 295660 and 660 differ from mine?

also the newest nav disc is 25912408 (from gmnavdisc.com) anyone have that one?

i got ahold of the loading.kwi from a cadillac srx i think it was and i figured out how they found these codes so if we can find a new one for ours then it should be relatively simple to figure out something...if there is anything

ibobby · Jul 20, 2008

when i get back home I'll check my DVD. I received it in April 2008. So it should be the lastest upgrade.

On that note:

I remember seeing something online about copying the NAV dvd and adding a file(while copying) to defeat the in-motion lockout. But it was for another vehicle if I remember correctly. But maybe the same idea might work for GM.

Mikenewb · Jul 20, 2008

Has anyone seen this?

http://cgi.ebay.com/ebaymotors/PION...774756QQcmdZViewItem?IMSfp=TL0807181410r12685

73shark · Jul 20, 2008

Offroad Use Only. Wink, wink.

Mikenewb · Jul 20, 2008

Was looking at that override again and its not for ours. I did email him and asked him about the factory installed deso unit we have. If he is (or knows someone) able to figure these others out, he could possibly do ours..

ibobby · Jul 21, 2008

ont the outside of my disc is:

#25912408U
2007 Denso Corp
2007 Tele Atlas
2006 Data by infoUSA
dvd-rom v 3.10
DW464210-6841

295660 and 660 also works 9448 and 1791 doesn't.

Mikenewb said:
Has anyone seen this?

http://cgi.ebay.com/ebaymotors/PION...774756QQcmdZViewItem?IMSfp=TL0807181410r12685

hummm? Might be able to find what he's doing somewhere online.

2007TahoeLTZ4x4 · Jul 22, 2008

hmm ive been doing some reading on other forums and the way theirs works is the nav system would load into ram the loading.kwi file if the radio was disconnected for long enough but our systems seem to be loading it from rom im beginning to think that stdvce.kwi is the software that it would update itself with

also for anyone else who knows more about computers than me
they used IDA Pro to disassemble it and the processor is a mobile phone one Hitachi SH3 or SH4 i believe...i figured out how they got the pin numbers but i cant seem to get past that...ive also seen a bunch of references to /dev/...

ibobby · Jul 28, 2008

http://www.google.com/search?hl=en&...:official&hs=ruV&q=GM+loading.kwi&btnG=Search

07SuburbanLTZ · Aug 16, 2008

So anyone have an update about this?

2007TahoeLTZ4x4 · Aug 20, 2008

sorry no update here...ive been working on my house alot and havent had time to mess around with this

Navigation Secret Keypad

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