Note from @dark alex:
Please note and know that Joying (Joyous) units are MTCB-Units and therefore discussions made here also apply to any other MTCB-Units and vice versa.
You are requested to participate and create discussions and Q&A-Threads instead of clearing things here because there is no difference except slight modifications in hardware design and the outer optics.
Click to expand...
Click to collapse
These all seem to be the same base model/design with the following options:
http://www.carjoying.com/2-din-car-gps-navigation/7-double-din-audio.html
JY-UQ124 = RK3188 Quad Core, 16 GB Flash, 1024*600 Screen
JY-UQ127 = RK3188 Quad Core, 16 GB Flash, 800*480 Screen
J-U1004 = RK3066 Dual Core, 8GB Flash, 1024*600 Screen.
J-U1011 = RK3066 Dual Core, 8GB Flash, 800*480 Screen.
They all have the same appearance. They have a 7" screen, with a single large knob (push for power), and a couple of buttons on the left side.
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Internal
Here are some internal images.
The board seems to be a different, possibly newer design than what is shown in the HuiFei thread for the KGL/KLD models. The board does not have any silk screen printing identifying the components and the board is in a slightly different layout it seems.
Here is how it identifies itself on the android about screen:
This is the unit I have been looking at as I like the buttons for no look usage. Do you think it is good to buy it now or wait until they figure out Lolipop?
I chose this unit because it
a) didn't waste space with a DVD Slot which I would never use (come on its 2015 already), and so it had a full 7" screen
b) it HAS at least a volume knob. I don't like the new designs with all touch screen and no actual knobs or buttons. I just could not imagine using a touch slider for volume of the radio in the car. yuck.
c) I was impressed that carjoying.com actually seems to support their customers pretty well after the sale(in a very broken engrish sort of way but they are trying), that they actually answer questions very quickly (experienced a 1 day response to a question about upgrading personally), that they have a website where they have updates posted etc..
d) The price was pretty good. I spent $262 for the best model specs you can get, they have pretty good prices and fast free shipping via DHL Express from china.
As far as waiting for Android 5.. I don't know if its a big deal. Even if they don't there are going to be millions of devices out there that will be running 4.x for years and years.
You could wait of course, because we all know something better always comes along, but I figured for $250 it was worth it even if I replaced it in a few years with something better.
So far I am very impressed with this unit and its speed and functionality. All the Android Head Units are very very similar, all almost all run the same software, and have the same ports on the back, etc... it mostly comes down to the front panel button layouts, if you want a dvd slot on the front etc.. But other than the button layouts, any unit with the quad core RK3188, the 1024x600 screen, and 16GB Flash storage onboard will all be nearly the same between them all.
So frankly, I don't think there is really THAT much technical difference between the various brands out there. To me it comes down to price, and if I like the physical design/button layout of the device. And carjoying is the only one that I have found that has this particular front panel layout that I personally thought was the best design.
nixfu said:
I chose this unit because it
a) didn't waste space with a DVD Slot which I would never use (come on its 2015 already), and so it had a full 7" screen
b) it HAS at least a volume knob. I don't like the new designs with all touch screen and no actual knobs or buttons. I just could not imagine using a touch slider for volume of the radio in the car. yuck.
c) I was impressed that carjoying.com actually seems to support their customers pretty well after the sale(in a very broken engrish sort of way but they are trying), that they actually answer questions very quickly (experienced a 1 day response to a question about upgrading personally), that they have a website where they have updates posted etc..
d) The price was pretty good. I spent $262 for the best model specs you can get, they have pretty good prices and fast free shipping via DHL Express from china.
As far as waiting for Android 5.. I don't know if its a big deal. Even if they don't there are going to be millions of devices out there that will be running 4.x for years and years.
You could wait of course, because we all know something better always comes along, but I figured for $250 it was worth it even if I replaced it in a few years with something better.
So far I am very impressed with this unit and its speed and functionality. All the Android Head Units are very very similar, all almost all run the same software, and have the same ports on the back, etc... it mostly comes down to the front panel button layouts, if you want a dvd slot on the front etc.. But other than the button layouts, any unit with the quad core RK3188, the 1024x600 screen, and 16GB Flash storage onboard will all be nearly the same between them all.
So frankly, I don't think there is really THAT much technical difference between the various brands out there. To me it comes down to price, and if I like the physical design/button layout of the device. And carjoying is the only one that I have found that has this particular front panel layout that I personally thought was the best design.
Click to expand...
Click to collapse
All of your points on why you chose this unit is exactly what I am concluding in why it would be great unit to buy. This is after spending a crap load of time on Amazon, Alibaba, Google etc. Just trying to make head and tails of all these different HU takes about a week as they list a lot of the exact same units at different prices but from what you can tell in the item description they have the exact same specs. Your bottom line of cpu, screen and storage is pretty much the best specs out there with a sorta "name brand" in Joying behind them.
I am looking to put this in an 2000 Audi S4 that is coming from a stock HU. Do you have an recommendations on the install? I know that Metra has most of the stuff I will need but this is the list I have so far:
2 Din Audi Frame
Wire harness
Converter
and maybe a AM/FM amplifier.
How long does it take for the unit to boot up? Is is basically AOSP or is there some sort of launcher that comes with it? Can I run Nova with it?
Thanks again for any information you can give
since one week i'm the happy user of this fantastical unit. RK3188 Quad core , 1024 x 600, 16 GB
Not mounted in car, for this time, next week, but i have upgraded 2 times firmware thank's Joying for your customers following.
Ultra responsive screen, excellent light quality and resolution, very ergonomic usage. It's the better unit i've never had....
Only a little regret, the cap over the SD cards slot seem fragile made with cheap plastic... and it's the only place where i have problem for insert or extract cards because need using a sort of needle for this, too small place.
But without these little default, it's the perfect unit for me...
Continue to support your customers by regular upgrades ( Lollipop ? )
THANKS JOYING
nixfu said:
Here are some internal images.
The board seems to be a different, possibly newer design than what is shown in the HuiFei thread for the KGL/KLD models. The board does not have any silk screen printing identifying the components and the board is in a slightly different layout it seems.
Here is how it identifies itself on the android about screen:
Click to expand...
Click to collapse
Interesting, is it in the future possible to update the cpu,memory and storage, if you take out the soc from the motherboard?
the cap over the SD cards slot seem fragile made with cheap plastic
Click to expand...
Click to collapse
Yeah I have noticed the same thing. the door/cap is poorly designed. you kinda have to play with it to get it to close and go back flush again with the other buttons. I also that that is quite possibly my biggest issue so far with the unit.
I plan on just putting a 64GB SD card in there and leaving it, and transferring stuff via wifi onto it and never having to insert/remove it again. But, if you were planning on removing the microSD all the time I would guess it would not last very long before breaking.
If you want to do this sort of thing, I would recommend instead switching to a USB stick and plugging/unplugging it into one of the USB ports instead and leave the SD card(S) more or less permanently installed.
I did some power usage measurements on the bench today. I did the tests with a HP Agilent programmable power supply at 12V.
FULLY RUNNING: It uses about 1.2 Amps when it is fully up and running with bluetooth and wifi turned on.
SLEEPING: when the ACC power is turned off, it goes into a lower power mode and waits for the time (30sec-XXmins+) set in settings before fully shutting down. If the ACC is turned back on in that time, it comes instantly back on. In this state it pulls about 500 milliamps or so.
OFF: when fully off, it will draw about 4-5 milliamps from the battery which is quite low and makes me not worry about it draining the battery
I am just about ready to do the install into the vehicle. I did a few mods to the unit first.
Doing some testing on the bench proved that even though it seems to be a slightly different design, this unit also has the poor microphone audio quality of other HuiFei units when operating hands free bluetooth calling. There was quite a bit of noise/humming etc using the built in mic on the front panel. The external mic jack was a little better and had a little less noise but it still was not great. So I went ahead and did the mod everyone was doing to their HuiFei units to connect directly to the mic input on the bluetooth card.
On this unit, the board layout does not have a simple capacitor you can unsolder to disconnect it from the built in mic inputs. It seems to have a trace that goes from the bluetooth card directly to the front panel ribbon cable. I didn't want to trace it up onto that board so I decided to simply use a razor blade and cut the trace on the board (see picture below) which comes from the 4th pin on the bluetooth board connector (mic+). It looks messier than it really is because you have to first scrape through the solder mask etc. and it gets all scratched up in the process. I could see what I was doing better on the bench under magnification though so I know I did it correctly..
I then cut the existing mic cable plugged into the board and soldered it directly to the MIC+ and SGND pins on the bluetooth card.
I also decided to change the improvised wifi antenna which was on the unit that really was just a section of exposed coax, into being an actual RP-SMA jack on the back which I could then attach any wifi antenna. For now I used the antenna from an old wifi router I had in my junk box, I am actually considering adding an external wifi antenna on the outside of the car such as one of these. I imagine that would be a huge range booster.
@ nixfu, we don't see your pictures....
superboost said:
@ nixfu, we don't see your pictures....
Click to expand...
Click to collapse
Opps.. fixed
Stock recovery
Hello everyone.
I have the RK3066 wich i installed twrp on cuz i though i had to use it to be able to flash roms but that is not the case. now i wanna flash the original firmware back but i didnt save it before.
can anyone save the stock recovery and upload it please ? it can be done with flashify app on the play store
you just need to root the device ( o to Settings->Factory Settings, and enter *#hct#root# as the password, it enables root on the device ), then install flashify and choose backup recovery
thanks in advance, i really need it
nixfu said:
Opps.. fixed
Click to expand...
Click to collapse
Maybe it's me, but I still don't see the pictures
nixfu said:
I am just about ready to do the install into the vehicle. I did a few mods to the unit first.
Doing some testing on the bench proved that even though it seems to be a slightly different design, this unit also has the poor microphone audio quality of other HuiFei units when operating hands free bluetooth calling. There was quite a bit of noise/humming etc using the built in mic on the front panel. The external mic jack was a little better and had a little less noise but it still was not great. So I went ahead and did the mod everyone was doing to their HuiFei units to connect directly to the mic input on the bluetooth card.
On this unit, the board layout does not have a simple capacitor you can unsolder to disconnect it from the built in mic inputs. It seems to have a trace that goes from the bluetooth card directly to the front panel ribbon cable. I didn't want to trace it up onto that board so I decided to simply use a razor blade and cut the trace on the board (see picture below) which comes from the 4th pin on the bluetooth board connector (mic+). It looks messier than it really is because you have to first scrape through the solder mask etc. and it gets all scratched up in the process. I could see what I was doing better on the bench under magnification though so I know I did it correctly..
I then cut the existing mic cable plugged into the board and soldered it directly to the MIC+ and SGND pins on the bluetooth card.
Click to expand...
Click to collapse
Your pics aren't working for me
It ended up cutting the pin that goes from module to board
But the trace you're referring to doesn't actually go to that ribbon cable closest to the module.
It actually runs across the front (infront of the ribbon cables) then over to the external mic plug somewhere over there
nixfu said:
Opps.. fixed
Click to expand...
Click to collapse
Hey @nixfu. Still unable to see the pictures.
I am really interested in checking them out.
Thanks for taking the time to post them.
i own this unit, close to perfect
i bought this one from Germany to speed up delivery and avoid taxes (it takes 3 days to arrive to me in France):
joying-europe-eu-warehouse-2015-latest-aftermarket-7-inch-2-double-din-1024-600-in-dash-car-stereo-android-4-4-4-kitkat-quad-core-head-unit-autoradio-16-gb-memory-touch-screen-airplay-gps-navigation-radio-audio-system-support
I chose this one because of
- 7 inch
- 4 core RK3188
- Android 4.4 and future 5
- Physical buttons
- ISO provided
- very regularly firmware releases
- more powerful model for a veru correct price to compare to major brands of market
- The technician/vendor Rambo is very communicative/avalaible, even after buying
It replaces a Parrot smart, which is a very good unit too but stayed at android 2.2
I approve all previous comments on this unit, very high end finished except plastic cache of micro-SD cards which looks cheap.
Unit starts in 15 seconds, good suprise. Interface is very reactive and i can install what i want. Sound is good and radio reception too.
My concerns are:
- no tethering bluetooth 4G sharing with my mobile phone, only wifi hotspot works. It's a pitty because it drains battery of my phone.
- no vocal command for calling, searching music
- only GPS app could be changed as default, no music app neither radio app
- it's not very easy to tap on the letters located in the border because of the physical extended frame in high
- no favorites feature for radio channels
I have read that i can deblock some thing with a rooted firm, xposed frameword and mode MTCxposed. I have to check it out.
Anyway, quality/price surpasses theses concerns to me and i am very happy with this buy.
i would like to buy the Model JY-UQ124 = RK3188 Quad Core, 16 GB Flash, 1024*600 Screen,the Specs looks good!
I have now a AN-21U in my Car installd with the newest Redmod but the Boottime and the Mic Gain sucks!
-how long does the boottime from the Carjoing model take and how is the quality of the Microphone?
-I read something about a Mic Mod, which is in the model also necessary and if so, there is a manual for the Mic Mod?
-can I use the Malaysk Rom for the Radio?
Is it worth it to change the model at all?
thx
TOMMYX2 said:
i would like to buy the Model JY-UQ124 = RK3188 Quad Core, 16 GB Flash, 1024*600 Screen,the Specs looks good!
I have now a AN-21U in my Car installd with the newest Redmod but the Boottime and the Mic Gain sucks!
-how long does the boottime from the Carjoing model take and how is the quality of the Microphone?
-I read something about a Mic Mod, which is in the model also necessary and if so, there is a manual for the Mic Mod?
thx
Click to expand...
Click to collapse
Hello,
i have same model and like i wrote in my previous post, it takes 15s to boot.
Ext Mic quality is good (don't test internal mic). I put it in front of mine and can dial without concern. My interlocutors don't complain.
Hi there, i am not too sure if i need to start a new topic, but i guess this is the best way to get your expertise on my issue.
I am driving a seat leon 1p (2008) which had the RNS510 (seat media system so whitout the sd card slot) built in. Sadly the display died (full white) and i had to search for something else.
I bought me a RK3188 device (it says ERISIN in the advert, i cannot find that name on the box or device itself) with a load of nice features. Most of them are working like they should, others have some hickups and 1 is really bothering me. I have made a youtube video and the seller says they don't see whats wrong. I bought it trough eunavi on aliexpress.
Here my explanation, the leon is fitted with a large dot matrix mfd screen in the dashboard (boardcomputer) (there are versions with a smaller display)
the big display is served with the windscreen wiper handle, which has 3 buttons, up, down, and ok/reset.
When i want to reset my computer (trip, avg fuel etc.) i need to press the reset button about 3 seconds. the radio then decides to shutdown... once i release the reset button, the radio decides it doesnt want to shutdown.
Quite weird in my opinion. So i tried programming the wheelkey settings, according to the manual. first i go into wheelkey settings, then i press clear / reset.. then i need to press any wheelkey (so allso the volume up / down, next, previous etc etc.) the radio does respond to that, but not with the wheelkey settings programme. I'll try to add the youtube link here as well.
next to this, some weird things happen.
1.The display is way too bright, so i asked the seller what to do, they told me they will send a new display which i should fit myself. In my opinion not the best solution from a shop but i understand their marigins aren't enormous and they try to fix it cheap. the display hasn't arrived yet so i can't say if the new display gives the solution for me.
2. when i have the tuner on, with af-rds function, it seems to scan to any rds station once the signal gets weak. Maybe i'm spoiled, but i think AF needs to search for the station with the same ID as the one i was tuned in to.
3. the dab+ dongle and window antenna give poor reception now. this is presumeably caused by the way i fitted the aerial, on top of the ventilation shafts behind the dashboard. I want to move the antenna to behind the rear view mirror (horizontally) which will hopefully give good reception. (does anyone know if horizontal positioning of the antenna is okay for dab+ ?)
<- the issue with the MFD input
<- the whiteness of the display (cannot be edited with standard settings) it was quite cold when i made this video, it seems it is a little better now or i am getting used to it
so quite a long story and i have my fingers crossed on your response !
maybe good to let you know:
MCU version
MTCD_LM_V1.90_1
sep 23 2016 09:37:48
Android-sersion
5.1.1
Kernel-version
3.0.101+
[email protected] #90
Fri Sep 9 16:24:49 CST 2016
Build-number
rk3188-userdebug 23092016.13:30:50
Hello World,
I have been working (and sometimes labouring) with my trusty work horse tablet SM P900 for almost 18 months now. And despite numerous disappointments (USB OTG w/o charging?!), it has been a mostly satisfying ride.
But since more than a few weeks now, I am starting to notice a slow down in memory intensive applications. It is almost as if the interal storage is acting up whilst reaching its EOL.
Actions that are not CPU intensive at all seem to be hanging, until all of a sudden they break loose and everything seems to be working normal again - until next time. And this happens more and more frequently. I tried to "trim" myself out of this mess, but by now I can't see any real difference here no more.
I tried in vain to find a replacement board for the internal storage, but alas replacement parts for the P900 seem to be very, very hard to obtain in the first place.
If anyone here has some useful suggestion, then I all ears (BTW: I have been using a slimed down custom ROM from day one and I am very picky about what apps I allow to run in the background. So its absolutely no SW issue).
Now I am also willing to entertain the idea of a new purchase, but try as I may I could not find a worthy successor to the P900. Samsung itself seems to have given all but up on this line and all the competition doesn't life up to my expectations.
These are:
1) It *must* be running on USB 5V power - anything else would be a deal breaker for me.
2) It should be running on an ARM CPU, but I could do with an Intel as well.
In any case, it is ARM based, then there has to be some custom Android ROM available for it (I hate stock bloated stock firmware).
It it is Intel, then it needs to have Linux support - somewhere out there!
3) The Display should be HD and somewhat comparable with the P900 specs.
4) The unit must be tablet capable, best with notes like stylus support. So now fixes keyboard and the like.
5) For ARM/Android based RAM must be 3GB minimum and internal storage 64GB min.
6) There must be an option to insert an extra micro SDXC card (deal breaker).
If anyone knows of a manufacturer who can match my desires, I am very much open to suggestions right now.