yashsingh1/xdaforums huggingface dataset:
[MTCB Android Head Units Q&A] madjeff:
Issue with Radio app

First of all, hello to all! Long time lurker here at XDA.

So, I'm a new owner of a Universal JY head unit, just rooted with the latest Couda 4.4. Prior to rooting I've been getting the wiring all sorted out and testing the unit, and was pleasantly suprised that all functionality seemed to be working perfectly. Radio, antenna, wireless, bluetooth, ODB with Torque, all worked perfectly. To be honest the only reason I switched to Couda's ROM was for root so I could install the exposed framework for some of the other great mods.

So, flash went fine (did not flash MCU as it's dated pretty current) but after everything was back up I'm getting some radio weirdness now. I had tested the radio and signal strength was good, everything worked. After the flash when I do a scan, it doesn't seem to lock any stations. I can manually get the stations tuned and they come in fine, but scans will just sweep the dial and not find anything.

I've read the thread through to around the 800's and did a search (although xda search function was broken last night for awhile), but have not found any mention of this behavior after a flash. Has anyone seen this before and have a possible fix?

Look forward to participating in the community!
[MTCB Android Head Units Q&A] Nyehehe:
Hi!,

Thanx for the answer!

I thought that this Coudu's rom was rooted.

I actualy managed to root it using this rom: https://yadi.sk/d/qzE4sQamfoPc6

I just flashed it from the SD card and I got installed a fine rooted KitKat 4.4.4 which works great.

I used the one for my 1024x600 screen with the Next Launcher: from a kind russian guy's post: http://xdaforums.com/showpost.php?p=58249825&postcount=7614

The only problem I have is that when the unit warms up the touchscreen becomes crazy: when I type it pushes 2 or 3 letter at the same time or becomes unresponsive or just does things without pushing anything. If I knock the side of it a little bit then it works again. I wonder how it will work when it will be mounted in the car. I just got it yesterday, bought from eBay, but the seller has disappeared from eBay so I can't contact him.

I'm searching now the forum if somebody had the same problem too.
[MTCB Android Head Units Q&A] 4stimpy:
Anyone who can point me in the right direction on an usb dash cam?

Most standard usb cams do not have the wide angle of view needed for a dash cam.

It would be nice if a Mobius action cam would work.
[MTCB Android Head Units Q&A] DJCannonball:
my bad.. i missed the app-thing.

but i already thought of that. the app cpu_z runs fine and reads the temprature of my Xperia Z2 just fine.

however that same app does run on my HU, but does not read any temprature.

it displays both cores changing clockspeed constantly (from 816 Mhz to 1024 .. 1,6Ghz), but no temprature at all.

strange thing is ocasionally both cores completely shutdown ' stopped' while i can sill scroll the screen up and down.

any other app that can read rk3066's temprature?

---------- Post added at 07:43 PM ---------- Previous post was at 07:38 PM ----------

not exactly the same, but i have random crashes and it looks like it has a lot to do with heating.

i seem to have a rare build with no fan at all. the fan-hole is covered with black carbon.

does your's have a fan?
[MTCB Android Head Units Q&A] CARRisma:
I haven't yet checked that, however the relay I purchased has an integrated diode which apparently protects against power spikes.
[MTCB Android Head Units Q&A] ga!nusha:
You can try antutu. If i remember correctly it also has temp reading. The app did change a lot lately, hope it still has it.

My unit doesn't have a fan either. It has a black plastic cover instead. It's a KLD for mazda 3... So far i didn't notice any heating issues but i am very tempted to add a heatsink just in case as my unit doesn't have any warranty seals on the front screws :)
[MTCB Android Head Units Q&A] DJCannonball:
here's some proof it has to be a heating issue:

https://youtu.be/ZzLFBfAJSNE

when the HU fails, rebooting doesn't help.

when i set the airconditioner to FREEZE HU begins to function again.

note that the outside temp was 'only' 19 degC

enjoy your flight
[MTCB Android Head Units Q&A] ga!nusha:
It indeed looks very well in your car. Can't say it's the same for Mazda models...

I have to agree with dsa8310. You should return it. It would be interesting to see if it is a problem with your particular unit or a general hardware issue... My feeling is that the "thermostat" is damadged. I higly doubt that insufficient ventilation can be an issue at 19°C.
[MTCB Android Head Units Q&A] mallkrawler:
Lost volume control buttons

After installing the XposedMTC app I have lost my hard buttons on the radio. Has anyone else had this issue?
[MTCB Android Head Units Q&A] DJCannonball:
I just tried antutu. Same thing. No temp reading for rk3066
[MTCB Android Head Units Q&A] agentdr8:
If it's just the volume buttons/knob, then check to see if you're overriding the volume OSD in the prefs, as that removes that large volume toast, and uses the foreground app title to display the volume when it changes (if you're using the stock MTC Launcher).

It shouldn't affect any of the other buttons.
[MTCB Android Head Units Q&A] DJCannonball:
you see i also have another problem.

at the same time i bought a subwoofer and amp at a local store.

i have an agreement: i could return the subwoofer if i didn't like the sound of it.

this is the case. the subwoofer does not satisfy me enough and i'd like to bring it back and buy a bigger one.

when i'm returning the sub, i have nothing to demonstrate to the store what i don't 'like' about it's sound.

i can't connect the amp to my old OEM headunit (it has no RCAs), so i need this HU to demonstrate

i'm seeing the local store where i got it from this week, finding me a more satisfying subwoofer(+amp) and then send the HU back.
[MTCB Android Head Units Q&A] Nyehehe:
No mine has no fan either. I don't have DVD drive in mine so I could mount a small pc fan if it will be needed, BUT

i fixed the problem!!!

Unscrewed the front tablet part and I found a loose band connector. It was loose in the socket probably because there was a small circuit board attached to it which was flipping around freely.

Though the board has a heat-sink back I fixed it to the main board with some double sided foam tape.

So far I used it intensively: video playback, Gps, music simultaneously and it warmed up quite a bit and it's very stable, no more glitches!!!

Hope it helps someone in the future.
[MTCB Android Head Units Q&A] mallkrawler:
Lost all buttons

Lost all buttons. Right after I installed xposed and xposedMTC.
[MTCB Android Head Units Q&A] doctorman:
the problem was not diversity antenna .. it was my radio app was set to Russia and was skipping USA radio stations. changed it to USA setting and all is well

the car has power antenna amplifier on Harness E7 pin 8 blue cable, and checked my aftermarket harness was feeding it 12 v

my reception is very good now.

I called Metra and I was told combing the diversity antenna will cause distortion and not much gain.

---------- Post added at 07:11 PM ---------- Previous post was at 07:10 PM ----------

I have the same setting as you explained 2.16 and 4.4.4

with back up camera installed working fine...

sounds like a hrdware issue

contact the seller

---------- Post added at 07:15 PM ---------- Previous post was at 07:11 PM ----------

how can I reroute the DVD hardware button on the unit to a software perhaps Ipod or video?

anyway to do it without root? if not what app can do it with root?
[MTCB Android Head Units Q&A] rip9150:
Anyone have any insight on getting a dual core 3066 vs quad core 3188? The two I am looking at are a jy c0236 and kd c0234 respectively. The jy is dual core but no DVD and bigger screen. The kd is quad core with DVD and smaller screen.

Don't really need the DVD and the extra screen space would be nice but I am wondering how much better the 3188 chip is than the 3066...things like boot up time and switching tasks/ multitasking. I wouldn't be doing anything too hardcore, just radio, taking calls, sending texts but I am concerned about lag or trouble switching between tasks. Thanks in advance. And by the way I've tried the search both there are 11000 posts here and it would take forever, just wondering if someone can help me make a decision on a unit.
[MTCB Android Head Units Q&A] jkchr1s:
Attached is an APK for those interested. Github repo has been updated with the latest source code. Once you hit Sync the application UI may freeze, but just hit Home and go in to another app while it syncs to your Spotify playlist. Not the best UI in the world, but it's pretty nice to have access to your favorite satellite channel playlists again! After syncing, your songs show up in Spotify in the playlist you selected.
[MTCB Android Head Units Q&A] ktibor69:
I tried to connect the amplified subwoofer to RCA's for REAR Output. The builtin speakers were very loud on Vol 15, but the sound of the subwoofer was were very low.

I think the sound level from the rear RCA output was very low.

How can I increase the sound level of the L/R rear RCA output indeped to standard volume control ?

---------- Post added at 10:29 AM ---------- Previous post was at 10:08 AM ----------

I'm using Poweramp app. When I start my car and after the booting Poweramp app, the carservice app boots very slow 1-2 minutes. Until the carservice booting I didn't adjust the volume (didn't work the Vol+, Vol- button), and didn't work next/previous button. After the booting of the carservice when I pressed once the next/previous button, the track skip twice.

How can I solve the problem?
[MTCB Android Head Units Q&A] typos1:
I said open you unit OR INSTALL AN APP THAT MEASURES THE CPU TEMPERATURE, this is the 4th time I ve said it and you have totally ignored it, it would only take 5 mins to do and give you an exact answer.

---------- Post added at 11:17 AM ---------- Previous post was at 11:16 AM ----------

I couldnt have said it better myself, the GIF illustrates it perfectly !! :)

---------- Post added at 11:20 AM ---------- Previous post was at 11:17 AM ----------

Why did you buy one with a wall plug ? There have been link to 12V to 5V items that you can wire into the ACC lead several times in this thread ! For example :

http://www.ebay.co.uk/sch/i.html?_f...verter.TRS0&_nkw=12v+to+5v+converter&_sacat=0
[MTCB Android Head Units Q&A] cesmichel:
MCU KGL 2.22 AND KITKAT 4.4.4 MALAYSK' S ROMS

How to show stations on the radio?

I installed this MTCRADIO5 (26-02-2015) version, but not nothing.

Thanks for your help
[MTCB Android Head Units Q&A] DJCannonball:
i think the illustrated gif is very amusing (i really do :laugh:)

but please read my previous posts, i'm not opening the HU to keep Warranty and the seems to be no temperature sensor that can be read by apps (like antutu and cpu_z)

my seller has asked me to re-flash the mcu and firmware provided by them again and make a movie of the whole process flashing and failing

i will do that tonight when i get back from work to proove the unit is faulty
[MTCB Android Head Units Q&A] typos1:
There are several apps, just search for them using google, its not hard.

---------- Post added at 11:28 AM ---------- Previous post was at 11:26 AM ----------

This IS NOT proof its temp, its a theory which you need to confirm !! Install an app and get your cpu temp !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
[MTCB Android Head Units Q&A] DJCannonball:
i know it's not hard. there seems to be no temp sensor on this rk3066 OR there is no app available that can read the temp sensor of my rk3066 like CPU_Z or Antutu

read my previous posts
[MTCB Android Head Units Q&A] typos1:
Glad you fixed it, for future reference what make is your unit ?

---------- Post added at 11:35 AM ---------- Previous post was at 11:31 AM ----------

Its got twice the amount of cores as the dual core, running at the same speed, so its obvious thats it going to be faster and better at multitasking ! Boot up time is about the same.
[MTCB Android Head Units Q&A] CARRisma:
Yes, I have bought one of those too - a 12v->5v DC converter with a female USB plug attached, but I still need a means on how to connect the USB hub to that. I was unaware that the USB hub could be powered simply via a standard male to male USB cable, I thought it could only be powered via its round DC socket. The listing for the item that I purchased did not show the UK spec power plug.

A big problem is that "powered USB hubs" seem hard to come by, on eBay or Amazon at least. In their description, it is not clear how they are powered or what connections they use. They mostly do not have photos of their connections.

But, maybe any old USB hub can be used as long as it's connected to a DC power source? If that's the case, I didn't know that before.
[MTCB Android Head Units Q&A] typos1:
I have already read your previous posts, but you do not appear to be bothered to read mine - I gave TWO options, one opening your unit, the second the app, it took me giving you these two options THREE or FOUR times before you actually understood the second option of installing an app ! I ve read your posts on not getting temp from a CPU temp app and ANTUTU but there are more available, just google "android cpu temp apps" or similar, it doesnt take a lot of brain power to find something on the internet these days. Its also been suggested several times by several people that you send your unit back, but you wont do that either. Jesus you are so infuriating.

Tried ALL the apps in this search ? :

https://www.google.co.uk/search?cli...&oe=utf-8&gfe_rd=cr&ei=vEAuVYHmEoih8weY6YDgCw

Read anything in this search ? :

https://www.google.co.uk/search?cli...&oe=utf-8&gfe_rd=cr&ei=d0EuVaKnFoeh8wf46YDACw

I m having to do basic stuff for you like Google something !! Are you for real, you cant even be bothered to google things, you want people on here to do it for you ? !

You can make one very easily, instructions were posted a few months back.
[MTCB Android Head Units Q&A] CARRisma:
I don't feel confident enough in opening a USB hub and wiring stuff to it, so would prefer to purchase a ready made item. I've never used a soldering iron before.

However, saying that... I think i'll have a go at yesterday's suggestion of cutting off the UK spec wall plug and wiring a type A male USB plug onto it. That will free up one of the hub's USB ports. In the mean time, I've ordered a short male to male USB cable just to make sure it all works. If it does, then I'll probably try the aforementioned method.
[MTCB Android Head Units Q&A] DJCannonball:
i didn't know the word 'infuriating' so i started googling that.

it says: making one extremely angry and impatient; very annoying.

wow chill down mate. how about i buy you a beer when i visit London some day?

if CPU-Z cannot read the temp, if Antutu cannot read the temp, would it not be highly assumable that none of the apps can read the temprature?

however there is one other app that i will try tonight: Cpu Temperature

https://play.google.com/store/apps/details?id=com.yanyan.cputemp

it even has an overlay on top to display the cpu's temperature at all times. if that app does not read the temp, i'm sure that none of the apps can.
[MTCB Android Head Units Q&A] typos1:
You are annoying because you do not read the advice given and you STILL havent read it !!! - I just read the first XDA thread that came up in the Google search url I gave you and there IS a way to read the CPU temp on the RK3066.

And NO, you CANNOT ASSUME that just 'cos one CPU temp app cannot read the temp and 'cos one benchmarking app cannot read it, that NO CPU temp app can read it, that is ridiculous.

Refer to my previous posts, try ALL possible apps that read CPU temp , thats ALL OF THEM, NOT JUST ONE !!! Try ALL methods in the google search links I gave you, do not expect me or others to do your work for you and spend our time finding CPU temp apps and methods to get a reading, installing and trying them to prove or disprove your theory that your unit is overheating, having also ignored all of of previous advice to send the bloody thing back as faulty, just because you are too negative or too lazy or simply cannot be arsed to do it yourself.
[MTCB Android Head Units Q&A] ga!nusha:
I think that most temp apps are based on battery temp. as our units don't have a battery nothing is shown. As typos1 said you should try CoolTool. The link he was talking 'bout is this one: http://xdaforums.com/showthread.php?t=2643540

Good luck! Let us know if it works and we will request it to be added to front page.
[MTCB Android Head Units Q&A] DJCannonball:
i take that as a 'NO' ? no beer? :eek:

ok, i made an arse out of myself by not getting the app-thing in the first place, but let's not talk about that anymore.

i will take your advice and try it out and report later on.
[MTCB Android Head Units Q&A] mallkrawler:
Today I got back into the truck and the volume, nav and other buttons were still not functions. But then I used the power button on the unit to test if it worked or not. The "Mute On" message appeared on the screen and for fun I tested the volume button and now it works. So not sure what happened but just glad I got it to work again. Thanks for your response.
[MTCB Android Head Units Q&A] RaZi3L_:
This is the first time I see v2.44 of MCU from JY. I think the last one was 2.16

if your seller has not gone I would say that you asked him to send you the file to update JY mcu.
[MTCB Android Head Units Q&A] peti007:
I have the same. With MCU 2.20 was 50-50% connect/not connect. I installed 2.40 and connected always for more then a week. I was very happy... but yesterday not autoconnected 2 times. :(

It was very strange, when I step in the BT app and connected my phone then back in Poweramp, sound was very-very bad. Then disconnected the phone and sound come good again. I don't know what happened.:eek:
[MTCB Android Head Units Q&A] DjCalvin:
While some folks can actually connect their ODB devices.. I cannot at all.

Eonon Unit Running KLD MCU 2.40 - Coudu's 4.4.4 rom.

I figured I would take a quick video of it not working at all:

https://youtu.be/Za8cr_BoVZc

I have the xposed module enabled, with Vgate as the Identifier. (I tried both Vgate and OBD)

Any suggestions? This particular BT obd device works fine with Both My M8 and my Nexus 7
[MTCB Android Head Units Q&A] 4stimpy:
Maybe i am not patient enough or no one can help me.

But thought i'd give it another try.

The mobius is not ideal because it is hard to place.
[MTCB Android Head Units Q&A] Nyehehe:
I guess the MCU is newer than the others because this is a newer model HU with different button layout and hardware.

BTW I solved the problem mentioned in the post above. I installed the latest Rom for my device from this post: http://xdaforums.com/showpost.php?p=57379814&postcount=5815

It works like a charm!

---------- Post added at 07:21 PM ---------- Previous post was at 07:17 PM ----------

It is the latest Joying unit with MCU V2.44 it looks like this one here: http://www.carjoying.com/2-din-car-...n-1024-600-9-colors-buttons-airplay-wifi.html
[MTCB Android Head Units Q&A] zorantoma:
Could you please ask yor seler for the image and mcu file?
[MTCB Android Head Units Q&A] Nyehehe:
I bought it from eBay, but the sellers account is closed so I can't contact him :(
[MTCB Android Head Units Q&A] doctorman:
I just got a brand new (OEM fit) JY unit this week and installed it, the latest MCU is 2.16 dated Dec 2014

my unit is 8" screen

all is working for me and I would not mess up this expensive system with low support with an unkown MCU
[MTCB Android Head Units Q&A] eastberkshirecustoms:
This is what I ordered : amazon.com/dp/B001H7AFO6/ref=wl_it_dp_o_pC_nS_ttl?_encoding=UTF8&colid=RCEJISIEZ1TD&coliid=I2FIEP27JPAJGI&psc=1
[MTCB Android Head Units Q&A] DJCannonball:
I'm sorry to interrupt. i tried both 'CPU temp' and 'Cool tool'

as i expected, they cannot read the temperature of my RK3066
[MTCB Android Head Units Q&A] eastberkshirecustoms:
You need to install a 'line driver' between your HU and amp. These units effectively raise the low voltage signals from weak RCA's, a common occurrence in many newer HU's
[MTCB Android Head Units Q&A] manicuspanicus:
A couple of questions about viper. If it is used with the stock app we should not have the animation on?

And second do we need busy box installed for it to function?

Thank you in advance.

Στάλθηκε από το GT-I9505 μου χρησιμοποιώντας Tapatalk
[MTCB Android Head Units Q&A] typos1:
The MCUs are interchangeable for each manufacturer, regardless of button layout, you are right that a newer model is likely to have a newer MCU though. With the exception of the facia and screen size, the hardware is the same for all of the manufacturer's versions (apart from the SoM if you have a quad core unit), so yours does not have different hardware. The ROM you installed is not "for your device", its actually for a Klyde device, but as the first page says, ROMs are compatible with all (dual core) devices in this thread.

Thanks for telling us the unit you have, what did you mean by a loose "band" connector, you mean a ribbon connector ?

---------- Post added at 08:30 PM ---------- Previous post was at 08:28 PM ----------

Its not patience thats the problem, its the fact that you cannot be bothered to use the thread search function and to spend some time reading to get the information you want, which is in the thread if only you could be arsed to search for it.

---------- Post added at 08:31 PM ---------- Previous post was at 08:30 PM ----------

Contact Shenzhen Joyous and ask them for it if you want it.

---------- Post added at 08:34 PM ---------- Previous post was at 08:31 PM ----------

What are you talking about ? ! This thread is 1100 pages long, what do you mean "low support" ? ! Numerous people have updated their MCUs with no problems. And expensive ? Are you kidding these are cheap. What was the point of your post anyway ?

---------- Post added at 08:37 PM ---------- Previous post was at 08:34 PM ----------

YOU HAVE STILL NOT FULLY READ MY PREVIOUS POSTS, GO AWAY AND READ THEM AND AS I SUGGEST AND YOU WILL FIND THAT THERE IS A WAY TO GET CPU TEMP ON THE RK3066 WITH THE CoolTool APP INSTALLED.

YOU HAVE ALSO ONLY TRIED TWO APPS AND AS I HAVE SAID THERE ARE MORE THAN THAT.

YOU HAVE BEEN TOLD THE SAME THING OVER AND OVER AGAIN AND YOU JUST DO NOT TAKE ANY NOTICE.
[MTCB Android Head Units Q&A] agentdr8:
Nicely done. Maybe move the sync method in your service to an AsyncTask or Handler? Should free up the the UI thread so it doesn't freeze (which can lead to ANRs if the sync takes too long).

Try setting the PIN in the BT app to the same as the pairing PIN on the OBD adapter.
[MTCB Android Head Units Q&A] typos1:
Yes to both questions.
[MTCB Android Head Units Q&A] kaween:
Hi there ! Could you do me a favour ? I'd need the EXACT measurements of the black plastic front part of your unit. Sellers often quote this to be 178x100, but somehow, it looks BIGGER to me in the pictures. Would it be too much to ask to give me the following measurements :

1) the front-plastic outline (so really the total width and heigth of the front plastic part)

2) the width and heigth of the "inlay", the "part that becomes less wide and high" that produdes from the front ?

A friend of mine is looking to install this unit and I've said I'll help him, but I'm a bit worried that radio is way too big to install in his dashboard without some serious modifications and cutting.

Thank you in advance.
[MTCB Android Head Units Q&A] typos1:
All units are the same measurement, from whatever manufacturer (apart from the ones that look double din from the front but have a single DIN metal case). Just measured my JY and its more like 179.5x99.5mm, so a little different, how could you tell such minute differences from a photo ? !