yashsingh1/xdaforums huggingface dataset:
[MTCD  Android Head Units Q&A] TT_Vert:
Ok that's a great alternative for us stateside. Problem is, nowhere on carjoying.com do they even state you exist. It'd behoove them to make it known we can get stuff directly from inside the US. Had I known I would have gone that route just to avoid all of the issues w/ timezones, language barriers, etc. Depending on what happens w/ this unit I have in a pending status I'll need a replacement for it. They emailed me again today asking me to put it in my car again, even though I told them I already tried that to no avail.

Dave
[MTCD  Android Head Units Q&A] transitoyspace:
I can vouch for joying-usa

I was skeptical too here on xda. I messaged him and we communicated via email pretty quick response. Then I bought it through his amazon store. Of which has Amazon return policy.

Price was about the same as Joying but since im in the USA I wanted to make sure I get USA support, ive read all the horror stories here. So far its been pleasant (dealing with seller) .

Next part is to get this tablet as good as kit kat versions.
[MTCD  Android Head Units Q&A] TT_Vert:
I'm not disputing he is who he says he is. I"m saying it would make business sense for Joying to make it known he is an option. With that said, did you buy from him directly or via Amazon?

Dave
[MTCD  Android Head Units Q&A] TT_Vert:
So when I purchase from Amazon, how can I tell where they are coming from? I've purchased 4 from amazon, 2 had cracked screens and the other was clearly used, modified by someone.

Dave
[MTCD  Android Head Units Q&A] Pattond:
There is a "carjoying" is that who you are seeing?
[MTCD  Android Head Units Q&A] doctorman:
carjoying and joying are the same.
[MTCD  Android Head Units Q&A] roblis:
View attachment 3748909

View attachment 3748910

View attachment 3748911

I bought this unit with lollipop 5.1.1, after installing xposed via terminal emulator, it stuck on the logo. can someone tell me how to get in the recovery?

already try : press and hold power button and start the car --> not working

press and hold power and RST and --> not working

thank you
[MTCD  Android Head Units Q&A] TT_Vert:
Try to turn key on, when you see lights light up hold button until they go off. Then press and hold again until you get into recovery. No idea if it'll work but it's worth a shot. Xposed will not work on the 5.1.1 devices yet I don't think. Did you install SDK 22 Framework via CLI?

Dave
[MTCD  Android Head Units Q&A] masterv1:
Tried the same with xposed. Had to press and hold the upper button on the left and right until screen went off. After that it will start in recovery mode.

Gesendet von meinem C6903 mit Tapatalk
[MTCD  Android Head Units Q&A] roblis:
Thank you dave, i'll try it when i get home today. Hope it work

---------- Post added at 11:34 AM ---------- Previous post was at 11:31 AM ----------

I'll try your combination keys as well, masterv1. Thank you

---------- Post added at 11:36 AM ---------- Previous post was at 11:34 AM ----------

Yes, i install via CLI with many error. I watched the step from youtube
[MTCD  Android Head Units Q&A] lowridincrew,:
Where the hell do I wire my Amp remote wire to?
[MTCD  Android Head Units Q&A] Fattah:
Can anybody help????
[MTCD  Android Head Units Q&A] Musicman1973:
On my Erisin ES3060PB the IGO program doesn`t work.

It says that the Screen Resolution 1024x600 does not supported !

And sometimes it says that the Screen Resolution 1024x536 does not supported !

Can anyone who have an Erisin Android 5.1.1. Radio send me the sys file from IGO, so that my IGO will start ?

I hope anybody can help me ?
[MTCD  Android Head Units Q&A] roblis:
I tried dave n masterv1's combination keys to get into recover but still unsuccessful. Is ist possible i have lost recovery because install xposed?
[MTCD  Android Head Units Q&A] TT_Vert:
i don't see how you could but can you tell me the commands you ran via CLI?

Dave
[MTCD  Android Head Units Q&A] roblis:
I follow the instruction from https://www.youtube.com/watch?v=g6D1nFiOvT0

- placed xposed-sdk%2a[5.1.1].zip and installer.txt in root internal storage

-install busybox

-install XposedInstaller_3.0_alpha4.apk

-install terminal emulator with command

su

sh /sdcard/installer.txt

1

i use the file from https://www.dropbox.com/sh/hueign0v...Yk9E893waa/Installer Xposed Lollipop.zip?dl=0
[MTCD  Android Head Units Q&A] halloj:
Have you tried this one? Reboot Recovery https://play.google.com/store/apps/details?id=pl.qbanin.reboot it works.
[MTCD  Android Head Units Q&A] roblis:
Thank you halloj. My unit bootloops, cant get into the system, so i cant install and use app from google play.
[MTCD  Android Head Units Q&A] halloj:
OK, sorry.
[MTCD  Android Head Units Q&A] roblis:
successfully reinstal fw for my unit

use this steps to open recovery mode

Press the reset button.

Press both Power and Home button for about 15 seconds.

Release both and press Power again.

The unit will boot into recovery.

Unit : MTCD_GS_V1.34_1

lollipop 5.1.1

fw: https://mega.nz/#!BkM1QQxA!tsvxNlRRVqJUA_pomOSjKgdHN81YQglUBaUNtqfvtwM
[MTCD  Android Head Units Q&A] TT_Vert:
At which point do you press and hold home/power buttons?

Dave
[MTCD  Android Head Units Q&A] roblis:
in boot state, i press the reset buttton, then after screen show text "lollipop android navigation" press power and menu button (in my unit), then the unit power off, keep pressing both button may be more than 15 sec (didnt count), after release both button, screen still off, then ASAP short press the power button, after that screen on and show recovery mode

the methode is different from seller told me
[MTCD  Android Head Units Q&A] TT_Vert:
so prior to this you at least got some type of video output on the screen?

Dave
[MTCD  Android Head Units Q&A] nitrogen618:
Doctorman is legit.

Ordered a Toyota universal harness , shipped out immediately and got it in 2 days.

Doing it from joying China would of took me 2-4 weeks or I pay $25 more for expedite DHL shipping
[MTCD  Android Head Units Q&A] TT_Vert:
If you paid $25 extra to expedite, could you not just expedited from Joying? Did the unit come from Joying USA or just expedited from Joying China?

Dave
[MTCD  Android Head Units Q&A] baeumel:
Status to MalayskROM for 5.1.1

Hi Malaysk (or doctorman),

just want to ask on how are the donation going at the moment.

Which amount is needed at the moment?
[MTCD  Android Head Units Q&A] Fattah:
Are the display screens interchangeable with models with different mcu? I have a 1024*600 screen with a dvd loader and want to put this in a new radio

http://s.aliexpress.com/qa2iqquE

Is this possible? Old faulty mainboard is a kd version.

http://s.aliexpress.com/zUFRr6BJ
[MTCD  Android Head Units Q&A] doctorman:
your question is not clear...

but that screen front assembly does not have DVD.

I know aliexpress sellers are few dollars cheaper but they sell you garbage and close shop and do not answer your emails. but it from a reputable website.
[MTCD  Android Head Units Q&A] Fattah:
My current faulty unit has a dvd drive. I want to purchase a new unit without a dvd drive and transfer the old complete screen with the dvd drive from the faulty unit to the new unit. So it's a complete screen swap.
[MTCD  Android Head Units Q&A] doctorman:
the metal sides are different in each unit.. it is not that simple.

you are better off repairing the old unit
[MTCD  Android Head Units Q&A] Malaysk:
Everything is very good. I will soon open a topic in its firmware to 5.1.1 which lists all the people to help me with the unit !! Thank you all. Special thanks to - doctorman, sterod, TT_Vert

Good luck.
[MTCD  Android Head Units Q&A] aarick:
Anyone have KGL firmware and mcu? Can I install joying firmware on KGL without updating the mcu?

This thing is soooo slow. I run TomTom traffic camera app + Apple Music..and try to launch Ok Google to navigate and it takes forever to get Google maps loaded..1GB ram definitely very restrictive. Running a swap drive on my sd card to help..
[MTCD  Android Head Units Q&A] doctorman:
you can update the ROM without the mcu.

wait for Malaysk ROM. I am sure his ROM will speed up the unit.
[MTCD  Android Head Units Q&A] aarick:
Looking forward to it as a lot of things doesn't seem to work properly. Thanks.
[MTCD  Android Head Units Q&A] roblis:
Yes, after tried many methodes, at least there is a methode works. I can continue to try flash another fw. But why maker gave me methode that not work?
[MTCD  Android Head Units Q&A] TT_Vert:
Ok so your unit was soft bricked, i'll try it on my hard bricked unit today but I doubt it'll do anything.

Dave
[MTCD  Android Head Units Q&A] Marius B:
Ok . I make arhive and send this night .

Trimis de pe al meu SM-N910C folosind Tapatalk
[MTCD  Android Head Units Q&A] aluver:
Didn't somebody try to plug in a USB-DAC? It has to work at lollipop even at hi-res.
[MTCD  Android Head Units Q&A] Perseus:
Please let's not Request or post iGO Application as it is not Free and is not for Private use. Kindly understand XDA Rules. In particular

Any violations will be dealt with.
[MTCD  Android Head Units Q&A] TT_Vert:
Ironically half these ROMs have pirated apk's on the phone side.

Dave
[MTCD  Android Head Units Q&A] lowridincrew,:
Any Sound mods to this yet? It's very low for my 4 channel 600w Amplifier. Maxed out Gain and Maxed out volume is no where near loud.
[MTCD  Android Head Units Q&A] transitoyspace:
its controlled by the mcu(aka other board). So USB-DAC's wont work.

This isnt a normal android device. Theres another board that the backup camera, radio and speakers use. The rom is then programmed to talk to the mcu board. Mainly for listening. Its why you are able to instantly turn on your rearview cam while android is still booting up.
[MTCD  Android Head Units Q&A] Marius B:
[MENTION=3590033]Malaysk[/MENTION] any news from you about your mtcd unit ?

Trimis de pe al meu SM-N910C folosind Tapatalk
[MTCD  Android Head Units Q&A] doctorman:
It is in the mail.
[MTCD  Android Head Units Q&A] aluver:
I know this all, because I have RK3066 HU KiKat (Klyde). And I made USB Audio working for my HU, with volume control for DAC-output (see http://xdaforums.com/showpost.php?p=66707293&postcount=47). All Android sounds go to USB-DAC (SPDIF - DSP - AMPs). The sound quality was primary for me.

I just want to know is there a difference with USB Audio support in Lollipop HUs.
[MTCD  Android Head Units Q&A] Marius B:
What mail ?

Trimis de pe al meu SM-N910C folosind Tapatalk
[MTCD  Android Head Units Q&A] R4D3N:
Probably he bought it and now he waits for it in the mail to arrive :)

Now, all we have to do it is to wait for Malaysk to make his magic.
[MTCD  Android Head Units Q&A] Malaysk:
Yes, to me sent the unit, soon I get it. I think in a week. :highfive: My third day at home is not working internet, the accident at the fiber-optic line.)))
[MTCD  Android Head Units Q&A] Marius B:
I send one box with internet. [emoji1]

Trimis de pe al meu SM-N910C folosind Tapatalk
[MTCD  Android Head Units Q&A] TT_Vert:
LOL, does joying sell boxes of internet now too? Malay, do you work during the day?

Dave
[MTCD  Android Head Units Q&A] Malaysk:
Oh sure. Sometimes on weekends to work. At night I do the firmware. Ha..Ha ...;)
[MTCD  Android Head Units Q&A] TT_Vert:
Jesus dude. I don't have kids and I cannot find enough time in the day as it is. Good for you..
[MTCD  Android Head Units Q&A] Luxferro:
Do any of these android head unit companies release source code? If not, don't they have to?
[MTCD  Android Head Units Q&A] aarick:
I have an issue where all my apps seem to install to the 2GB partition only. I can't move to SD. Seems like the internal SD mount points are wrong, but I am not sure how to fix the mount point.

This is especially painful for music apps, like Apple Music (don't judge, I get 12 mths free from my carrier). With Apple Music, I can change the download location to SD, but this puts it to the GPS card. Also, Apple music would first download it to the 2gb partition before moving it to the GPS card. Would be great if it is possible that it just uses the internal SD like my phone.

Greatly appreciate it if someone could help me with fixing the mount point or a way around this?

Alternative would be folder mount to move some apps, but I'd rather not have another service run at startup as this thing is slow enough already with the 1GB ram.

Thanks.
[MTCD  Android Head Units Q&A] transitoyspace:
They should. But since they live in a country that doesnt follow laws or rules youll never see it.

As far as i know, nothing is proprietary. Rockchip also made the source code for 3188 available. But since most rebadgers make their own boards they dont feel the need to release anything.

The main problem right now is the kernel. Bootloader is unlocked and I think I figured out how to manually flash in case of hardbrick. If we had different kernels we would truly unleash the power of these devices. But that wont ever happen.
[MTCD  Android Head Units Q&A] doctorman:
can you please share how you fix the hardbrick in mtcD?
[MTCD  Android Head Units Q&A] lowridincrew,:
If there is a will, there is a way.
[MTCD  Android Head Units Q&A] typos1:
This front panel is used on a variety of Chinese stereos from a variety of different manufacturers, several Android types, some WinCE types and other non OS types, you CANNOT identify a unit from its front panel, only from its MCU types and/or back panel.

Its already been done, but you need to change the screen : http://xdaforums.com/showpost.php?p=66739927&postcount=59

Its highly likely that, as with most aftermarket stereos, there is no "reception issue", its a case of a power injector being needed to get the OEM antenna booster working.

NONE of those are manufacturers they are ALL resellers - Joying resell units made by Shenzhen Joyous, Pumpkin mainly sell units made by Shenzhen Klyde, Eonon and Erisin seem to sell units made by a variety of manufacturers, including Shenzhen Joyous, Shenzhen Klyde, Kai Ge Le and others.

There is a possibility that 7floor's audio controller mod for MTCB units (see MTCB hardware thread) will work with MTCD units if the sound processor is the same and if the MCU controls it as it does on MTCB units, you d need to do some research into this and of course they may have changed the audio control chip, its worth investigating though.
[MTCD  Android Head Units Q&A] TransAmMan:
I'm on the fence keeping my Joying 5.1.1.

I've owned 3 Joying Radios. I have the 4.4.4 7" in one of my cars (the one without physical buttons) and I absolutely love it. It's extremely fast and Google Now voice commands work fantastic. It's been on 3 very long trips and worked flawlessly every time....GPS...hands free calling..etc. I have noticed it depends on your phone how well the hands free calling works. At first I had an Xperia Z5 compact and my callers always complained of feedback and they hear themselves talk on the other end. I just got the LG G5 and those problems have gone away.

I purchased a 10.1" 4.4.4 unit for my other car and just 1 month later, the 5.1.1 came out for it. I decided to sell my 4.4.4 on Ebay for a $80 loss and purchased the 10.1" 5.1.1. During the switch, I accidentally broke the digitizer on my 10.1" 4.4.4 screen. I had to order a new one from Joying for $65 + $25 for shipping. They sent me the wrong one (the 5.1.1 screen will not work on the 4.4.4 radio) so I paid $16 to ship the incorrect one back. They never did send me the refund for the shipping I had to pay for the incorrect screen back to them like they said originally, but I really didn't pursue it either. $16 is not a big deal and I do love their products. Amy and Bella from Joying covering Amazon were always very friendly and responded to my emails within 1 day every time.

As of right now, even after the latest update on April 30th, the 5.1.1 just seems very slow compared to the 4.4.4. A lot of people with name brand cell phones on forums complained when they upgraded to lollipop from kitkat their devices were extremely sluggish. I have the exact same programs installed on by my Joying 4.4.4 and 5.1.1 and the 5.1.1 is using about 200mb of extra ram at all times. As soon as you launch google maps or Pandora, there isn't much free ram. I only have a couple programs installed (Pandora, Amazon Music, Morecast, PowerAmp). That's it. There are a few bugs here and there, that's to be expected with a new product. Maybe it'll speed up over time with new updates, maybe not. I'm a pretty impatient person and I'm considering pulling the 5.1.1 and putting a 4.4.4 back in. I know I'll take another hit when I sell my 5.1.1 but I don't mind.

I saw early in this post people were trying to get together money to Malaysk for a custom ROM. The conversation on that seems to have fizzled away 10 pages ago. I'd be happy to contribute if it's still happening, just not sure how....I'm still pretty new to XDA.
[MTCD  Android Head Units Q&A] themissionimpossible:
Unfortunately I don't own a Joying HU but an Eonon, and probably there won't be any replacement option, so for me this isn't a possible solution, at least not yet...;)
[MTCD  Android Head Units Q&A] typos1:
You dont have an Eonon, read the MTCB wiki - Eonon are a reseller, they sell units from several MTC manufacturers, to see what type you have go to settings/about and look at the 2 or 3 digit letter code before your MCU number - KLD for Klyde, KGL for Kai Ge Le, JY for Joyous, etc.

The Android firmware is fully compatible between MTCB units from different manufactuirers (and it appears between MTCD units from different manufacturers, but NOT between MTCB and MTCD units), so there is no reason why it will not work on a non Joyous unit, despite what Joying say.

---------- Post added at 12:22 PM ---------- Previous post was at 12:20 PM ----------

Interesting.

Also interesting why MTC manufacturers continue to use only 1Gb of RAM when the RK3188 can take 2Gb and other Android head unit manufacturers make RK3188 head units with 2Gb RAM.
[MTCD  Android Head Units Q&A] TransAmMan:
While talking with Bella and Amy I did ask if they were going to release a 2GB unit in the future. They told me all their resources are working on lollipop right now but there are plans to release one in about 6 months. If a 2GB unit comes out, I'll be upgrading immediately.
[MTCD  Android Head Units Q&A] typos1:
Klyde told me last year that they were working on octacore SoMs for their Lollipop. Hopefully it will just be a case of upgrading the SoM to a 2Gb RAM one, rather than buying a whole new unit, like it was upgrading from Rk3066 dualcore to RK3188 quadcore on MTCB units, HOPEFULLY.

Its possible the 2Gb RAM versions will be octacore, just as Klyde said theirs would be, maybe [MENTION=2366275]doctorman[/MENTION] would know.
[MTCD  Android Head Units Q&A] TransAmMan:
Octacore 2GB RAM version would be fantastic. With Ebay, swapping to a whole new unit isn't too bad. :) I have sort of a fetish with car radios..don't know why. I've had my 99 Trans Am for 16 years and have literally had over 25 car radios in it, possibly more. I've had my 2000 Trans Am for just 5 years and it's had maybe 10 car radios. I run them for a few months, get bored and switch to the next best thing. I've tried every flagship navigation model you can think of from Pioneer, Clarion, JVC, etc. I always sell the old ones on Ebay but since they're only a few months old, I usually only lose a little bit...sometimes as little as $30, sometimes as high as $100. I look at it as a rental fee. That's the best part of the Android ones...if you get bored of it, you can just install a new launcher or try different widgets and it looks like a brand new car radio.
[MTCD  Android Head Units Q&A] typos1:
Well, yes fair enough, but if the octacore or 2Gb RAM units are exactly the same apart from he SoM its far easier and cheaper to simply buy a new SoM, swap it over and sell the old one - your losses would be far less that way.
[MTCD  Android Head Units Q&A] TransAmMan:
These are the main upgrades I've experienced in the 5.1.1 units over my 4.4.4 radio.

During bluetooth calling, the 4.4.4 radios play the caller over all speakers. On my 5.1.1, it plays only through the passenger front speaker.

The 5.1.1 FINALLY has a headlight screen dimmer option. I have no idea why none of the Chinese radios I've had never had a head light screen dimmer. I remember years ago I had a 7" Eonon CD player that I had to make a tinted piece of .030" lexan to put over the screen at night because it was like a headlight on in my interior. You would think a headlight screen dimmer would be standard.

When using Google Maps on 5.1.1, if you are on any other screen and a turn is coming up, the radio will go to a horizontal split screen and show you your turn (by name and with an arrow). That's an awesome addition. I no longer have to quickly switch back to the navigation screen like I do on my 4.4.4 unit.

I have a mini bluetooth keyboard with touch pad for my wife to use. On the 5.1.1 you can have both the physical and android keyboard on at the same time. On 4.4.4 as soon as you turn on the keyboard, the on screen android keyboard turns off. It's easy to turn back on in settings but gets annoying after a while.

That's the only benefits I've come across so far. I was able to install the purchased version of Sygic on my 5.1.1 but after the last google store update, I was also able to install it on my 4.4.4 radio.

I can't install the Joying IGo they sent me the link for on the 5.1.1. I get an error saying "Doesn't work on 1200x528 resolution". The 4.4.4 unit gave me the same error but it still installed.

That's it so far.
[MTCD  Android Head Units Q&A] typos1:
Interesting, thanks for your comments.

I m sure the later 4.4.4 ROMs have the option of having the phone come out of just one speaker, although I could be getting confused with 7floors's sound control mod, which lets you do that.

The dimmer sounds good, I ve seen the MTCD MCUs have the option short and long presses for the SWC, which I like the idea of - I have only one phone button on my wheel so I d like it to be both dial and hang up.
[MTCD  Android Head Units Q&A] TransAmMan:
Yeah, I forgot to add that part. You can program short and long presses for the SWC but it still limits you to 7 total programmed buttons. I have 8 on my wheel. I was hoping to have 16 total commands programmed...not that I'd be able to remember what each button does with that many...lol
[MTCD  Android Head Units Q&A] typos1:
I guess youd do dial/hang up for phone (if youve got just one phone button like me), next track/station/next folder/preset for the channel up/down buttons, um and I can think of anymore logical ones, so I spose that would be down to any specific commands you want.
[MTCD  Android Head Units Q&A] themissionimpossible:
Sorry but I'm not so sure...

I don't think that what you say would actually be feasible because IMHO changing some HU component (like the screen) would probably also require a new updated and compatible MTCD MCU, but AFAIK Eonon (KLD) MCUs are different than the Joying's (JY), and likely Joying MTCD MCUs couldn't be installed and correctly work on Eonon HUs....	:crying:

But if you know for sure that it would be possible to correctly run a Joying MTCD MCU on an upgraded Eonon, or otherwise that my current KLD MTCB MCU doesn't need to be replaced by a new KLD MTCD MCU to run the Lollipop ROM, I could start thinking about the component upgrade.
[MTCD  Android Head Units Q&A] typos1:
You totally mis understood my post - MTCD and MTCB are not compatible, but I was talking about the JY L update for MTCB units that requires a screen upgrade.

I was NOT talking about upgrading an MTCB unit to MTCD, that cant be done, or if it could it would require lots of re-soldering components.

I DO know for sure (check the link in my previous posts - although I cant find the link on Joyings site) that the Joyous L update will work on a Joyous unit with a new screen. I m also pretty confident it will work on any other MTCB headunit with the screen upgrade, not 100% though, its being discussed by others currently, it may be that the screen requires a JY MCTB MCU, not sure yet, watch this space.

As I said preciously - there are no "Eonon" or "Joyng" MCUs - Eonon and Joying are resellers, not manufacturers.