yashsingh1/xdaforums huggingface dataset:
[Android Head-Units] kaween:
Not entirely sure what you mean with "flasher" (I suppose you mean an old-style relais-box that acts like a flipflop circuit to enable the blinkers to blink ?), but EVERY car has something that must take over this function, otherwise well, your blinkers wouldn't blink now would they. :) I do admit I've no knowledge when it comes to Nissan, but I do know a bit about Renault who own 45% of Nissan. Nissan uses Renault engines (specifically the Diesel engines) and electronics so on a limb here : I wouldn't be surprised there's quite a lot that is identical between the companies' cars.

The blinking of your directional lights is done by what Renault calls the "UCH" or "unité contrôle habitable". It's a small dedicated electronic box that copes with "all stuff inside and external lights" of a car, and with Renault cars you'll find it typically under the dashboard, "left side upwards", against the left wall. It's shaped like a small black plastic box, will have 2 or 3 connectors running to/from it and it is approx 15x10x4 cm big. The commands of your steering stalks will run to that box, and that box regulates stuff like lights, blinking, power windows ect ect ect. The "click click" blinking sound you hear is also generated in that box, as do all the audioable warnings concerning lights, safety buckles and whatever you have in your car.

Anyhow, the easiest way to realise a "automatic switch of cams using the blinker indicator" would be to open the covers of your steering wheel assy to access the stalk with the blinker contacts, and pin the 2 cables that are responsible for the blinking itself. (IE : measure the connector's pin behaviour when blinking). Those two signals can be used to direct power to the cam you require.

If you can't find the responsible cable, another "quick'n dirty" method would be using two "long leaf" microswitches which you fixate in the steering wheel housing in such a manner that they are operated whenever you push the blinker stalk up- or downwards. Once you've got that, you can use a 12V on the switches who will send power to whatever cam is connected to, providing power to the side where the microswitch is closed. The switches themselves aren't very big and the long leaf versions will give you some freedom in placement.

This mechanical approach also excludes the potential XOR problem you'd be facing if you'd intercept the signal from the UCH : What I mean is, if you use the UCH's signals, you'll have a "both cams powered" issue whenever you need to switch the 4 blinkers of your car simultaniously in case of emergency.

Off the top of my head, those are the two methods I'd be using if I'd do something like that. I've actually done something similar (the long leaf microswitches) in the shift stick to automatically disable the front parking sensors of my wife's car unless she's in first gear and it works very well that way.
[Android Head-Units] Haligan:
Do you know if ANY wifi ODB2 adapter will work?

http://www.amazon.com/gp/product/B00PFFG1EO/ref=s9_simh_gw_p422_d0_i3?pf_rd_m=ATVPDKIKX0DER&pf_rd_s=desktop-1&pf_rd_r=1F690QJQZ1GDJ7ZF14MX&pf_rd_t=36701&pf_rd_p=1970559082&pf_rd_i=desktop
[Android Head-Units] TheSSJ:
Well, if all OBD2 Wifi adapters will open an access point to connect to, then why not? The important question is: does every OBD2 app work with connections over WiFi? :)
[Android Head-Units] Sinner75:
Dissambley of internal mic

Hi folks,

I´d like to disable the internal mic of my AN-21 U. I´m a little bit confused after having read a lot of posts and comments.

I´ve got a unit with an external jack installed. But it seems to me that the quality of the handsfree does not change by using an external mic because the is still the same problem which I have when I use only the internal mic. The problem is that the person I talk to always hears the own voice like an echo and so there is no way to use the handsfree. I hope to solve the problem when I disable the internal mic or does anyone have another advice?

Is there anywhere a howto for this? I know how to open the front plate and there should be the connectors and cables for the mic (like shown on the pic I found here in the community). Do I just have to cut them off?

Thanks for your help.

Regards

Sinner
[Android Head-Units] roystervi:
Some cars have a flasher and a relay that when you click turn signal the flasher will blink on and off to make the turn signal lights blinks. its does not call a blinker.. I know this because I own 2 Infiniti G20 before I got this 05 Nissan.. I never seen a Renault car but I know nissan own Infiniti.. I have my Camera for a while now to install but I want to tie into the turn signal because I am lazy and did not want to click a button to activate the turn signal...

I have talk to many friends and have been in many forum to find a way to tie into the turn signal... here is an answers I got back from the NISSAN FORUM (There is no flasher in you 05 Altima. The turn signal and hazards are controlled by the Body Control Module (BCM) ) and (You're lucked out. The BCM controls the bulbs directly and displays info in instrument panal via CAN bus.) PICTURES ATTACH I have remove the instrument cluster on my car from the steering wheel as a friend said and I have tested every PIN coming from the steering wheel harness while I click the turn signal to check for voltage and find none.. Below are flasher and one is of an 2002 Nissan Altima the 02 setup and the 08 setup is the same except starting from 05 they stop make flashers. If I had a flasher once I click the turn signal there is a 12V before the flasher I could tap into to get my steady 12v

I love a challenge, as I find a way to tie in 5 camera views in my unit I will find a way to tie into the turn signal into my cameras.. [MENTION=4736782]kaween[/MENTION] I must ask, are you in the States? because I think after 2002 or 2004 Nissan stop put Flasher relays on NIssan altima.s... do a google search for 2001 Nissan altima or auto parts store and look up Nissan altima turn signal flasher relay... The blinking noise are coming from my instrumental panel but my 1996 Infiniti the blibking noise was coming from the white box under the dash.. Google is or friend lol
[Android Head-Units] kaween:
[MENTION=2199328]Sinner75[/MENTION]

As long as you don't cut the two wires, the internal mic stays active in the circuit, causing :

1) a wrong impedance value whenever you hook up an external mic, as both mics will try to work in parallel. None of these units has a mechanical switch or electronic selector to make sure this situation is prevented. Problematic signal level and interference between the two mics is pre-programmed.

2) something that is often misunderstood : the positioning of the external mic is extremely important, and you'll have to experiment to find the best result for your car. Mine exits the headliner near the reverse mirror and sits about 30 cm above my head to my right. At that location, the mic picks up my voice and the voice of a passenger at comparable levels. No engine noise is being transfered according to my daughter, and my voice is heard clearly without any echos. Other people had good succes mounting their external mic's at the top left corner of the A-style where the plastic cover of the style ends. Others have mounted theirs on top of the wheel column. As said, there's no one-size-fits-all advise I can give you, experimentation is everything.

My car itself isn't a luxury liner, but a pretty noisy, low cost diesel-equipped 4x4 with subpar noise insulation when it came from the factory (I've given the car a complete workover, adding alubutyl and soundinsulation on the firewall, bottom plate and wheel arches internally but it still is far from a silent car compared to a modern one).

Just to say : it is perfectly possible to get acceptable handsfree operations using a cheap external mic with this unit, even when your car isn't a Merc, Audi or BMW.

---------- Post added at 06:46 PM ---------- Previous post was at 06:38 PM ----------

Eh, no. I'm living in what some people call the ugliest country in the world (Belgium). It's small enough to miss at the blink of an eye when you fly over it. If you're lucky, you _actually do_. :laugh: My somewhat inept use of the English language is another unmistakable sign I live .... where the grass is NOT greener.

---------- Post added at 06:50 PM ---------- Previous post was at 06:46 PM ----------

... Heh, whatever you come up with, I'll be greatful.:good:
[Android Head-Units] darkromance:
Touch screen issue

Hi guys

I solved the problem with the resolution but i still have touch screen issue in my device it's a 1024x600 screen.

i've posted this video on youtube https://www.youtube.com/watch?v=UTcm5vtNqqc to show you the problem

Any tips are welcome bye
[Android Head-Units] roystervi:
drawing I made

if anyone want to add front, rear and side cameras to their unit here is a drawing I made to add 4 camera to my unit..If you can tap into your turn signal and get a steady 12v then just replace the LB and the RB with your turn signal switch..

and below is a picture of the circuit I made and use. I also have the rear cam hoo up to the reverse light so when I put the car in reverse the backup cam comes on.. by doing this I had to add a diodes to the reverse light so when I activate the other cam the reverse light will not come on..

..any questions just ask, because

I have some small custom mirrors that is hard to see out of with the tint on the windows and adding the camera pick up all of my blind spots..

here again is the finish work https://www.youtube.com/watch?v=s9wnbJgjI1A
[Android Head-Units] roystervi:
I like to know the out come of this any final pic would be great
[Android Head-Units] TheSSJ:
well, I found the source file where the rds group data is parsed, but honestly I would need to read 300+ pages of the corresponding book...would take some time until I know what is done and why :(

Method where the parsing is done is handleMessage (line 27). Maybe someone programmed some RDS decoder and knows where to look and what to fix...or maybe I will find a code snipped and match the location in the source file to check and compare myself...

Anyways, that's it for me here at the moment...

Okay, of what should I make a picture? I can upload the source codes of both apks, but they differ in pretty much everything :D
[Android Head-Units] j2gifted:
Im having an issue with my unit.

When I connect to wifi from any source, the connection is made, but the icon doesnt turn blue, it stays gray.

It's my understanding that when this happens that there is a problem connecting to google servers. As far as I can tell my google apps are still working with the exception of Gmail. My emails are not being pushed through.

I googled and found various options such as toggling airplane mode but that cant be done on the unit, ive cleared the data nland force closed the Google Framework in the app list and restarted the unit with no luck. I've also used the pin hole reset button with no luck.

I noticed that if I uninstall and reunstall the google app that it goes blue and I begin to receive emails again, also if I uninstall google play updates and reinstall it goes blue again, but once i turn the unit off the problem comes back.

Idk what to do. My unit is bone stock 2 knob version and ive had it for about a year and a half with no problems.

I was thinking about doing a factory reset, but im not sure if I will lose the car apps [the ones that cant come from play store like button color change, radio, steering wheel controls, eq, etc]

Ive been reading through the forums and havent seen anyone else with this problem. This started about 1 or 2 days ago.
[Android Head-Units] gefi:
Guys this might sound stupid but i am going nuts over here :) Just updated from 2.7.9 to 2.8.8 and the only difference i see when i go to settings ... Is that the way that it is supposed to be , cause every other app i open is exactly the same nothing changed not even a small gui change ? Cause i see u have new app's for radio an music , bluetooth etc etc etc ? Do i have to update these manually or ? And if yes , where can i find the default apks for 2.8.8 ?

Kind Regards
[Android Head-Units] roystervi:
yeah I post about this a year ago .. if your unit is working find leave it alone because each new update is just someone changing a color here and their... If you continue to read these post everyday about someone need help is because someone messing with there unit for fun.. Shadowmike said over a year ago "if its not break leave the radio alone" I have my unit a year plus and I had 2 problem only because I mess with system firmware or the MCU firmware.. since I updated to 2.8.8 and had it rooted I never touch under the hood every again, from 2.7.9 to 2.8.8 nothing new except a color... day to day use my unit works great for a year plus now...

but again I have to say thanks to a few tinkers who thinker and find some work around like rooting and changing a color here and there..So again I say thanks to the tinkering team...

here and there I think all you need to do is to change your (radio.apk , bluetooth.apk, music.apk video.apk and eq) only if you want to change a color. and again if its not broken leave it alone and happy music listening.lol
[Android Head-Units] joq3:
I'm thinking of this one for my Tiguan:

http://www.aliexpress.com/item/Prom...ew-side-view-rear-monitor-for/1092981809.html

Is this an AN-21 U?

I have a few questions, how long will it take to boot it? Does it go to a sleep mode for quicker boot if I use the car everyday?

Can I use the radio when it boots up?

Will this show the information when doors are open and the temp/acc is adjusted on the screen?
[Android Head-Units] kaween:
Nope. And you're not going blind either. Although the're versions that really look different, in terms of functionality the different versions seem to be mainly bugfixes. Depening on your situation, you may never have any issues with that.

For me for example, the main difference between systems before and after 2.8.6 was the ability to run Tomtom as Navi.

If you never use Tomtom, it wouldn't matter to you. (just an example).

And as Roy says : if it runs for you and you don't have something that you really miss or complain about, there's little need to install a new version.

---------- Post added at 03:55 PM ---------- Previous post was at 03:50 PM ----------

Huifei-type of hardware. Look at their thread but for what I know of the Huifei devices :

1) ... no it's not a AN21-U device. Rockchip design, so it's a Huifei-look-alike.

2) Boot times of these Huifei's : I've seen quoted times of 20 seconds or (a lot) more, depening on used firmware.

3) No sleep mode ... afaik.

4) No. The Huifei's WILL start the "last used app", but afaik they do not permit you to listen to the radio tuner for example while the unit is booting, something the AN21 will do.

Still : please ask on the Huifei forum. I'm relativly sure these answers are correct, but I do not own a Huifei myself.
[Android Head-Units] gefi:
Oh sweet , so i did things right then :) Just for info , if i decided to mess with the old apps(2.7.9) where should i place the new(2.8.8) apks , meaning in which folder - do i delete the old and just put the new in ... Again sry for my dumb questions , just don't want to screw something up ...
[Android Head-Units] kaween:
I have the habit of renaming the original apk from someapk .apk to someapk.old, and then I copy the "new" one to the location of the original. That way, rollback is easy when things go south.

As for "nicer apk's", I can REALLY suggest to have a look at the splendid work Chris.r.r did on reskinning existing system apk's.

I don't use them myself -personal choice- but that doesn't mean I don't think he's done some really brilliant work on them.
[Android Head-Units] gefi:
Yeah my though was to rename them to say - radio.apk ---> radio.apkOLD and replace it with the new one

My question was , how do i find that radio or bluetooth or etc etc etc apk ... is there a default folder for them ?

Or how do i search them ?
[Android Head-Units] kaween:
Ah. Didn't understand that was your issue.

Well,

1) the unit has to be rooted before you can do stuff like this. Otherwise : no-go.

2) once rooted, you have access to the location of the apps. <root>/system/app

3) use a good file explorer to do stuff like this. Most people will use Rootexplorer. I'm a Total Commander fan myself, but anything that works forn you will do.

Not to insult, but if this all sounds like jibberish, look at h t t p s://www.youtube.com/watch?v=i7pKTOiNOVQ or comparable as a primer. Be warned that once you've rooted your unit, you ARE GOD. You can S*REW up EVERTHING. No safety net.
[Android Head-Units] j2gifted:
I did a factory reset, and all seemed well until google play updated itself again. Then the problem returned. If i uninstall all of the google play updates then the wifi signal goes blue again and mybgmail begins to push emails through again.

I also noticed that if I install an app from play store after it has updated sometimes the signal will go blue again after the app is installed but only until the radio reboots.

Any help?
[Android Head-Units] kaween:
Odd. Specially because you write the unit has been working for months without any issues.

I honestly can't remember anyone reporting this issue before.

What system version are you currently running ? Personally I've used nearly everything out there, but I always return to 2.8.8.

I suppose you have not tried a system update ? It FEELS (no technical proof) like some kind of serious corruption of the unit's system. A factory reboot will not always be sufficient to solve this.

What EXACT version of playstore does this relate to ?
[Android Head-Units] j2gifted:
I just factory reset the unit again a few minutes ago. When I do that it reverts google playbto version 3.9.16 or something like that and all was well. When I downloaded an app, google play updated as well to version 5.3.6 and thats when the wifi grayed out again. Ive tried downgrading to version 5.3.5 and upgrading to the newest version with no luck.

Attached is the system info... no mods...bone stock.
[Android Head-Units] j2gifted:
Ok I noticed that when the radio boots up, the wifi is symbol is gray UNTIL in download an app from Google Play.

After that, it's blue. The only other way to turn it blue is to uninstall all of the Google Play updates.

I THINK it turns blue if I install an app just from an APK and bypass Play store all together.

Any thoughts?
[Android Head-Units] kaween:
Hm, all things considered I'd try a system update first. I see you're running 2.7.4. , as most of the system updates represent bug-fixes, updating to a new version may be all it takes. I run 2.8.8. and it's virtually issueless. As long as you don't update the MCU you should be safe.
[Android Head-Units] j2gifted:
Ok, I've read through some of the system update posts from other users, and I must admit that the task seems a bit intimidating. I've never attempted to do it before now for that reason and because I was pretty satisfied with the unit out of the box. But if you think that may fix it I'll try it.

Can you point me in the direction of the proper udate file for my unit, and proper update instructions?

Will I have that read error message going across the top of my screen?

Do I have to root the unit?

In the menu there is an option that says "system update" or something like that. What happens if I just select that? Will it auto update to the proper version?

How likely is it that I will brick my radio?
[Android Head-Units] kaween:
Hehehe. Latest this time, Typos1 would pop a vein if you'd asked him this question on the Huifei part of this forum. Lucky for both you and me, slowly turning into an old f*rt makes me a bit more mellow and I've no problems with someone who politly asks for help. :angel:

It's not that hard, and providing you obey common sense and obey the rules, virtually without risk.

If you feel the eebie-jeebies when doing this the first time, let me assure you that is _normal_.

1) get yourself a microSD card which you can trust. make sure it is formatted and empty

2) download the needed firmware. I'm using the 2,8,8 TT permroot thingy. You can find it (along with a sh*tload of other neat stuff) here : https://yadi.sk/d/tbaxJYL9cJjKK

3) download the one you want, unrar it, and copy the system files to the root of that micro SD card of yours. If I'm not mistaken, the 2,8,8 permroot consist of just 2 files. Some version contain 4 files. Do not worry about that.

4) insert the sdcard into your unit. Turn the unit on. Note : make sure there's no possibility of the unit loosing power while upgrading. Some people will even go as far as updating while their engines are running to exclude issues. I have a bit more trust in my car's battery than to resort to measures like that, you may do with this info whatever you see fit.

5) To upgrade your SYSTEM, it's the place where you already found it .... so basically APP→Settings→General→System update→OK

6) let it run its course. Do NOT interrupt it. Do NOT update your MCU without any reason - most people will be perfectly happy running their existing MCU's and just upgrading the system itself. I urge you to follow their example. The upgrade process can be seen here : http://www.tudou.com/programs/view/xAcNVQYDl4I/ so take a look first so you know what to expect. It takes a couple of minutes to finish, do not worry. But I repeat, do NOT choose to update the MCU unless you notice problematic behavior, and even if, better come back here and ask for advise. All the oldies on this forum can sing you songs of misery and horror when it comes to wrong MCU's.

... and hopefully after that, your issues are a thing of the past.

Do you NEED to root ? No. Do you WANT to root ? Depends on you. A perfect good reason to want root is using the skinned app's that Chris r.r. so kindly provided. But your unit will work just as well in an unrooted state. The 2,8,8; when correctly done, will NOT show that ugly red error message, but I'm currently not 100% sure anymore if that's the situation "as is" after installation, or if this had to be taken care of by rooting the unit and replacing the needed system file. Take a look at the permroot files and instructions that come with it. If still in doubt, ask.

My guess is the red warning will NOT be there after flashing and you will not need to do anything to make it go away. If not, it's a question of rooting the unit, and replacing the com.tw.service_a5a4.apk with the one you find in the yandex file repository which I linked to in point 2. It can be found there underneath the currently popular firmwares.

Hope you find this helpful enough. :fingers-crossed:
[Android Head-Units] Kidmet:
I'm having this issue too. 2.7.9 system. 2 knob. I've noticed no change in functionality though. Internet works, gmail works, etc... I've ignored it. let me know if you update to 2.8.8 and you see a difference. I'd be up to upgrading so long as it doesn't mess anything up.

---------- Post added at 10:51 AM ---------- Previous post was at 10:49 AM ----------

I had this issue. go into settings and there should be something that says switch sd card something or other. If you search my posts you'll see my issue and solution.

---------- Post added at 10:52 AM ---------- Previous post was at 10:51 AM ----------

I'm very interested in this. I have an 08 Altima. could you post a parts list and a little more detail into the wiring. (how, where, etc...) How did you get the four video inputs into the on input into the unit? Just used splitters?