Car mode triggered

hox37 · Aug 4, 2010

Finally find out how the car mode is triggerd
short circuit the ID Pin of the micro usb conector to any other pin will make my phone into Car mode and the car panel will popup if installed.
The ID-Pin is the 4th pin of the conector wich is the 2nd from left when desire facing up. Since the pc end of a data cable doesn't have the ID-pin, it won't work like this thread said
xdaforums.com/showpost.php?p=6519276&postcount=10

birdster said:
Ok went into the workshop and stripped the desire usb lead, I tried every combo of pulling the data lines to ground even both together, the installed navigator.apk didnt kick in , but looking at a reatime system dump i could see usbconnected and type(0) , type (1), type(2) had been triggered, on the differnt combo's i tested, why its not kicking in is anyones guess, maybe cas the Incredible navigator.apk is strictly configured for that device, guess the Incredibles navigators.apk has to be recompiled with new settings !!

can someone confirm that

DanTehManUK · Aug 4, 2010

Can you confirm with pictures or diagrams?

al89nut · Aug 4, 2010

So this means that an amended cable would do it every time?

hox37 · Aug 4, 2010

yes, just like my car charger did, even when the charger is not pluged in the car lighter.

neur0x · Aug 7, 2010

Can you please post pin-out schematics?
Thx.

bubblesmoney · Aug 7, 2010

i think the menu is hidden by htc as the desire does not have the copper pins at the bottom like the nexus 1. hence the nexus 1 car dock wont work on the desire. the nexus one can be charged with the pins and does not need the micro usb for car dock chargings / docking. i guess the car dock software options shown on the desire by accessing the settings widgets are a hangover from the similar software on the nexus 1 hence hidden on the desire by htc.

i have the car dock app installed (dont remember from where though) and it works fine instead with navigation / voice search icons etc.

mancuk29 · Aug 7, 2010

Sent from my HTC Desire using XDA App

sorch · Aug 7, 2010

bubblesmoney said:
i think the menu is hidden by htc as the desire does not have the copper pins at the bottom like the nexus 1. hence the nexus 1 car dock wont work on the desire. the nexus one can be charged with the pins and does not need the micro usb for car dock chargings / docking. i guess the car dock software options shown on the desire by accessing the settings widgets are a hangover from the similar software on the nexus 1 hence hidden on the desire by htc.

i have the car dock app installed (dont remember from where though) and it works fine instead with navigation / voice search icons etc.

HTC is coming out with their own car dock. That is why their 2.2 ROM has the necessary support for it.

http://www.expansys.com/d.aspx?i=199788

obones · Aug 7, 2010

neur0x said:
Can you please post pin-out schematics?
Thx.

Yes, I would be very interested in the schematic

bubblesmoney · Aug 7, 2010

sorch said:
HTC is coming out with their own car dock. That is why their 2.2 ROM has the necessary support for it.

http://www.expansys.com/d.aspx?i=199788

something like that has been on th expansys and other websites since april / may onwards! so i wouldnt take that too seriously till it actually arrives and car dock works when docking.

at present i use the car dock app which has to be triggered manually but works fine. i use it with the car mode app.

lukzke · Aug 7, 2010

Yesterday i was driving with the car charger inserted in the Desire, when i was moving the cable sometimes the Desire gave a little car icon and my NavApp was activated. Sow i think i has something to do with the 4th pin, and you don't need a certan resistor attatch to it to get it in a certain mode.

sorch · Aug 7, 2010

bubblesmoney said:
something like that has been on th expansys and other websites since april / may onwards! so i wouldnt take that too seriously till it actually arrives and car dock works when docking.

That is probably because it needs 2.2 to to work properly. That's why the timing just happens to be after the release of said ROM.

Seems very overpriced if all it does is hold and charge the phone + short some pins together to enable car mode. Seems like anyone could make something to do that.

space1471 · Aug 13, 2010

I some how triggered car mode on my desire yesterday. It must have been as I inserted the charger as I pulled away so may have shorted a pin. but went to car doc mode and had car symbol on status bar and I had to push to exit even after unplugging charger. I have not been able to replicate this since.

mpattman · Aug 13, 2010

I bought 3 mini usb to micro usb adapters from eBay to allow me to use my existing car chargers and all three of them put my Desire (2.2) into car mode but don't appear to work as data adapters in my quick test.

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=310237922332

I see the car symbol and the notification tells me that I am in car mode but what does it do for me?

Thanks,

Geeba · Aug 13, 2010

Since Froyo update I keep getting the car icon in the task bar when I plug the charger in...

evilkern · Aug 14, 2010

Following the instructions I've made a "car dock cable". I intend to use it with a usb car charger when that arrives. I just soldered pin 4 and 5 together, which now gives me the icon and navigator pop up.

I used one of these cables : http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=260636551302 as they have an easily removable micro usb end, plastic cover.

al89nut · Aug 14, 2010

Can you give more details - 4 and 5 on the non Desire end?

Philosoma · Aug 15, 2010

Yes, more details please. Would be interesting if I can modify a Brodit active charger..

mar3k · Aug 15, 2010

Philosoma said:
Yes, more details please. Would be interesting if I can modify a Brodit active charger..

I also bought an active Brodit charger and it doesn't seem to trigger the car mode, so I am curious if it would be possible to modify to charger in order to achieve this.
Edit: I just sent an email to Brodit and asked them if its possible. Let's see what their answer will be. I post it asap.

charon72 · Aug 15, 2010

I bought 2 different Mini usb to micro usb converters from Brando.hk.

Carmode triggered on both types when i use it with my old Athena charger.

think i paid around 6$ for a converter.

This might be easiest way without cutting cables and soldering.

theese are the converters.

http://shop.brando.com/mini-usb-to-micro-usb-adapter_p03683c0006d001.html

and

http://shop.brando.com/mini-usb-to-micro-usb-adapter-w-on-off-switch_p04160c0006d001.html

Car mode triggered

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