rbf351

took me about 5 minutes to figure this out, i know everyone says it's not possible to go back to 2.05B after you upgrade the system, but you can and i just figured it out

1) place 2.05B into the drive and close the door
2) look behind NAvi drive for the 2 pin connector that connects to nothing
3) short the connector by placing a paper clip or using the Honda test connector tool
4) turn on the car, Navi system will already be in Diag mode which you normally get to by pressing Menu, Map/Guide, Cancel
5) go into the force download menu
6) Navi will automotically reset, and your old system will be back

SiGGy

nice, should move this into the FAQ section. Let it sit in here until it goes to page 2...

rbf351

guess no one else likes my how-to

rcz22

Nice how-to rbf, it will come in handy if I decide to drop the $184 on the new one, which btw....what are you doing with your 2.11C disk?

rbf351

trying to get Acura to take it back

NJ_CLS_driver

Why are you having a problem with it ?

rcz22

well if you are unsuccessful let me know

rbf351

.

it runs very slow and constantly gets me lost, my dealer is replacing my Navi system under warranty, but i wanted to see if it was possible to put back the old system

AMorgCLS

So you got the Old Navi version to work, congrats. Now are you still having the dealer replace your Navi system, and if so, arent you going to have the new Navi version when they replace your old Navi system? I thought you didnt like the new Navi version.

rbf351

yes the old system works perfectly and so fast compared to the newer one

the dealer is still replacing the system in a day or so and they are just installing the old version 2.05B and not the new one

AMorgCLS

That's cool. I had the old version before I bought my 01CLS and it didnt have half of the roads here in Tucson, AZ. So I told the sales guy, dump the old Navi Disc and say it wasnt in the car and order me a new one. He agreed and now I have the 2.11C version and it's a complete 180 from the old version IMO.

I never used the 2.05B version so I cant comment on it, but i'm happy with the 2.11C.

PavDog

yeah the 2.11c version blows.

AMorgCLS

LOL, alright. What do you mean by it blows? I have yet to come across any probs.

PavDog

It is noticeably slower. There aren't as many map improvements as I expected. The voice is worse. etc.. It's def. not worth $189.

convitcon

can we burn these DVD ???

paulmooney

The better way to go backwards in versions is to use the hidden menu and then select the force download option. Shorting out the pins on the diag port doesn't sound too healthy.

Paul

More navi info here...

http://www.angelfire.com/ga4/99_acura_tl_navi/

SiGGy

That site is for the OLDER Navi units. And you have to be booted to use that feature.

So do you boot the NEW navi, hit those keys, swap discs and then try force download. because YOU CANNOT boot the old disc with the firmware that gets loaded from the new sofware.

have you personally swapped discs and tested it yourself... sounds like your shooting from the hip.





?

paulmooney

Here are the detailed instructions...

step 1, screw yourself and your lack of faith - sounds like you are shooting from the hip to try to poke at someone offering help for others

step 2, visit my web site again because it has info on disk and dvd based systems

step 3, key on, insert the older disc, system pops up with warning about the older disc, turn key off, turn key on, press hidden menu buttons as the system comes up

note that a dvd unit doesn't boot from the dvd disc but it certainly is one of the first things it goes and reads as it boots up.

Paul

SiGGy

Turn down the internet sesitivity man.... I wasn't taking a person shot at you.

You were VERY vague... If you intended on helping others detailed insturctions would have been nice. You just said, "BAH, this is a better way". I just asked if you tested it personally...

If you had a clue about 2 pins you'd know it just erases the flash memory on the unit. So it's not very risky, albeit a pain in the ass. Especially if your method works... I know others have tried it without success... might be their methods.

b.t.w. you still didn't answer if you tested it personally...

paulmooney

btw, yes

Paul

SiGGy

Awesome, thanks.

rbf351

last time i checked you can not switch out DVD's unless the 2 pins are shorted, and that is what that harness is made for, it's kinda like the old honda/acura's where you short out the 2 pin wire to check what your check engine light is on for