Develop Bugs

MTCB difference between kitkat and lollipop models

Hi guys,
I'm going to buy MTCB unit to my skoda and I have a problem to decide which model should I pick.
Joying is offering two units with exactly the same specs but different android os version, kitkat based unit is almost 40% cheaper.
I'm nexus user for years so I know differences between these os's well, IMO on car radio is not that relevant. Are there any noticeable advantages of LP model which make it worth additional costs?
Kitkat model: JY-VN130
Lollipop model: JY-VL130
I know that kitkat can't be upgraaded to lollipop so this decision will be final. I've checked all recent post on XDA and didn't find answer so I count on Your help guys
best regards!

Hi,
Currently investigating to replace a Parrot Asteroid. There is virtually no difference between Kitkat and Lollipop till you encounter an app that won't install on Kitkat. On Kitkat there is the Xposed framework that is mature and allows doing various interesting things. On Lollipop it is not that mature (if working). Never used Xposed actually.
Are you sure the units you mention are MTCB and not MTCD?
BR,
Jerome.

KitKat can be upgraded to Lollipop, I just did it two days ago. Go with the Joying KitKat version since it's cheaper, and just upgrade to 5.1 if you want to. That way you can try both and chose what you want. Xposed is working on 5.1 MTCB devices now.

Why wouldn't you buy an MTCD? That is the newer hardware that will be supported moving forward, and more likely to (hopefully) eventually have an SoM upgrade available.

redzpl said:
Hi guys,
I'm going to buy MTCB unit to my skoda and I have a problem to decide which model should I pick.
Joying is offering two units with exactly the same specs but different android os version, kitkat based unit is almost 40% cheaper.
I'm nexus user for years so I know differences between these os's well, IMO on car radio is not that relevant. Are there any noticeable advantages of LP model which make it worth additional costs?
Kitkat model: JY-VN130
Lollipop model: JY-VL130
I know that kitkat can't be upgraaded to lollipop so this decision will be final. I've checked all recent post on XDA and didn't find answer so I count on Your help guys
best regards!
Click to expand...
Click to collapse
L is faster than KK and boots quicker.
jerome.jh said:
Hi,
Currently investigating to replace a Parrot Asteroid. There is virtually no difference between Kitkat and Lollipop till you encounter an app that won't install on Kitkat. On Kitkat there is the Xposed framework that is mature and allows doing various interesting things. On Lollipop it is not that mature (if working). Never used Xposed actually.
Are you sure the units you mention are MTCB and not MTCD?
BR,
Jerome.
Click to expand...
Click to collapse
Xposed is FULLY working on Lollipop.
Krunk_Kracker said:
KitKat can be upgraded to Lollipop, I just did it two days ago. Go with the Joying KitKat version since it's cheaper, and just upgrade to 5.1 if you want to.
Click to expand...
Click to collapse
Exactly, thats the sensible way to do it !
doitright said:
Why wouldn't you buy an MTCD? That is the newer hardware that will be supported moving forward, and more likely to (hopefully) eventually have an SoM upgrade available.
Click to expand...
Click to collapse
Because MTCB/MTCC units have been around for longer and are more developed.
MTCB/MTCC also had SoM upgrades available in the past and there is no reason to suggest that they wont in future either, especially considering the recent news that the new MTCC units are nothing more than MTCB units with different MCU software - MTCC MCUs work on MTCB units and this suggests that MTCB/MTCC units wil still be developed by the manufacturers.

typos1 said:
Because MTCB/MTCC units have been around for longer and are more developed.
MTCB/MTCC also had SoM upgrades available in the past and there is no reason to suggest that they wont in future either, especially considering the recent news that the new MTCC units are nothing more than MTCB units with different MCU software - MTCC MCUs work on MTCB units and this suggests that MTCB/MTCC units wil still be developed by the manufacturers.
Click to expand...
Click to collapse
Ok, let me put it another way... when was the last time that Google did anything new for the Nexus 4?
MTCB is old news, dead, end of life.
MTCD is the replacement for it. This is what will be updated going forward.
If you buy an MTCB now, then you're going to be buying an MTCD to replace it shortly.
You can't think of chinese hardware in terms of "what if they might continue to support it?" -- they won't.

doitright said:
Ok, let me put it another way... when was the last time that Google did anything new for the Nexus 4?
MTCB is old news, dead, end of life.
MTCD is the replacement for it. This is what will be updated going forward.
If you buy an MTCB now, then you're going to be buying an MTCD to replace it shortly.
You can't think of chinese hardware in terms of "what if they might continue to support it?" -- they won't.
Click to expand...
Click to collapse
So wrong on so many counts, youve put 2 and 2 together and come up with 11.
Firstly pretty much ALL electronic hardware is Chinese, it may have a western or (non Chinese) Eastern badge on it, but it will originate from China (the iPhone for instance is designed and produced by a Chinese company in China, only the shell is designed by Crapple).
MTCB is indeed "old news" . . . because its been replaced by MTCC - MTCC is newer MCU firmware developed for MTCB units, which have now been re-named "MTCC" units and are STILL being produced, MTCD is not a replacement for MTCB/MTCC, they are being sold alongside each other.
In the smartphone market updates are complex and support for even leading brand phones is often dropped within a few years. Not so in the Android ICE market - MTCB units have been going for over 3 years and are STILL supported, hence the new MCU name - the units have gone from 4.2.2 to 4.4.2 to 4.4.4 and to 5.1.1, they have gone from dual to quad core and still have the possibility to be upgraded with a further SoM upgrade, few Android phones have this level of support and updates, NONE are capable of having their SoMs upgraded.
If MTCB was "dead and at the end of its life" do you think the manufacturers would bother to get the developers to develop new MCU firmware for it ? The very fact that the new MTCC update for MTCB units exists proves you are incorrect.

typos1 said:
So wrong on so many counts, youve put 2 and 2 together and come up with 11.
Firstly pretty much ALL electronic hardware is Chinese, it may have a western or (non Chinese) Eastern badge on it, but it will originate from China (the iPhone for instance is designed and produced by a Chinese company in China, only the shell is designed by Crapple).
Click to expand...
Click to collapse
The difference is who owns the name and is taking responsibility (if any) for maintaining it.
MTCB is indeed "old news" . . . because its been replaced by MTCC - MTCC is newer MCU firmware developed for MTCB units, which have now been re-named "MTCC" units and are STILL being produced, MTCD is not a replacement for MTCB/MTCC, they are being sold alongside each other.
Click to expand...
Click to collapse
So you have evidence of a current firmware update, that's far from a long term support promise.
In the smartphone market updates are complex and support for even leading brand phones is often dropped within a few years. Not so in the Android ICE market - MTCB units have been going for over 3 years and are STILL supported, hence the new MCU name - the units have gone from 4.2.2 to 4.4.2 to 4.4.4 and to 5.1.1, they have gone from dual to quad core and still have the possibility to be upgraded with a further SoM upgrade, few Android phones have this level of support and updates, NONE are capable of having their SoMs upgraded.
Click to expand...
Click to collapse
That is absurd and completely irrelevant.
If MTCB was "dead and at the end of its life" do you think the manufacturers would bother to get the developers to develop new MCU firmware for it ? The very fact that the new MTCC update for MTCB units exists proves you are incorrect.
Click to expand...
Click to collapse
For a VERY short time, yes. This is normal. And then next month what do you get? How about the month after that? Have fun with your unsupported out of date chinese junk.

doitright said:
The difference is who owns the name and is taking responsibility (if any) for maintaining it.
Click to expand...
Click to collapse
The name and who owns it is totally irrelevant - these "no name" brands have been supported and developed (albeit sometimes not that well) for far longer than most "known" smartphone brands.
doitright said:
So you have evidence of a current firmware update, that's far from a long term support promise.
Click to expand...
Click to collapse
There were no promises of any support at all in the past, yet there has been for longer than most known brands (see above). It is not "a current firmware update" its a totally new name and version number for a previously existing MCU, if the units were "dead" updates would have simply stopped. Theyre, like gonna totally rename it, re-write the software and then drop it ? Yeah right.
doitright said:
That is absurd and completely irrelevant.
Click to expand...
Click to collapse
Not absurd, fact and totally relevant.
doitright said:
For a VERY short time, yes. This is normal. And then next month what do you get? How about the month after that? Have fun with your unsupported out of date chinese junk.
Click to expand...
Click to collapse
See my previous posts - updates and suppport for 3 years (far more than named brands) - this is a "a very short time" is it ? MTCC units are supported and will continue to be supported.
I ve had several of these units in several vehicles over the last few years, I m in communication with at least one manufacturer and with other members who are in communication with other manufactures, I ve been following/contributing to threads on here about them for the best part of 3 years, I know far more about these units, their history, their foibles and their development that you can ever hope to know. You are wrong, your ideas are based on bigotted assumption, not fact and if you think they are "unsupported Chinese junk" then go away and stop wasting your time filling these forums with mis-information and rubbish. Oh and as MTCD units come from the same developers and manufacturers and use many of the same components, they must also be "unsupported Chinese junk" as well.

I am in contact with Klyde and have purchased over 30 of their units at different times. I noticed that they went to MTCD units and then dropped back to MTCC units.
When I queried why they stated "the MTCB/MTCC is a much more stable module, therefore they have ceased to retail the MTCD and have decided to revert back to the stable version" hence why a version of 5.1 was developed for the MTCB/MTCC module.

Rabidoe said:
I am in contact with Klyde and have purchased over 30 of their units at different times. I noticed that they went to MTCD units and then dropped back to MTCC units.
When I queried why they stated "the MTCB/MTCC is a much more stable module, therefore they have ceased to retail the MTCD and have decided to revert back to the stable version" hence why a version of 5.1 was developed for the MTCB/MTCC module.
Click to expand...
Click to collapse
Interesting, thanks for the info.

Say a guy is on ebay amazon or aliexpress looking at all these different units available how can he tell them apart ? I mean these things are so identical besides the name its driving me batcrap crazy trying to pick the right one..

Cid6.7 said:
Say a guy is on ebay amazon or aliexpress looking at all these different units available how can he tell them apart ? I mean these things are so identical besides the name its driving me batcrap crazy trying to pick the right one..
Click to expand...
Click to collapse
The about device screen is always a good place to start.

typos1 said:
The about device screen is always a good place to start.
Click to expand...
Click to collapse
Is it safe to say that all or most MTCD units have lolipop ?

Cid6.7 said:
Is it safe to say that all or most MTCD units have lolipop ?
Click to expand...
Click to collapse
All MTCD units have Lollipop, but just cos a unit has L doesnt mean its MTCB/MTCC, you need to check the about screen and the wiki will also tell you how to identify units.

Hi guys,
I see that we have some quality conversation here
My radio (JY-VN130) just arived it looks and works great but unfortunatelly I don't see MTCB name in about machine :/
Photos (sorry for Polish language)
pizzeriapapryczka.pl/michal/2016-08-20%2020.35.25.jpg
pizzeriapapryczka.pl/michal/2016-08-20%2020.35.37.jpg
Does it mean it's not MTCB and that I can't flas malaysk ROM on this model?
thanks a lot for Your help

redzpl said:
Hi guys,
I see that we have some quality conversation here
My radio (JY-VN130) just arived it looks and works great but unfortunatelly I don't see MTCB name in about machine :/
Photos (sorry for Polish language)
pizzeriapapryczka.pl/michal/2016-08-20%2020.35.25.jpg
pizzeriapapryczka.pl/michal/2016-08-20%2020.35.37.jpg
Does it mean it's not MTCB and that I can't flas malaysk ROM on this model?
thanks a lot for Your help
Click to expand...
Click to collapse
The picture isnt uploaded, what are the letters before the MCU ?

I've reuploaded images, there's not letters before MCU:
System info: APP 1024x600 2016-07-12
MCU Version: 2016-08-15 JY_60_6C_7706_5008_CAN(GX)_Newlap

redzpl said:
I've reuploaded images, there's not letters before MCU:
System info: APP 1024x600 2016-07-12
MCU Version: 2016-08-15 JY_60_6C_7706_5008_CAN(GX)_Newlap
Click to expand...
Click to collapse
Ah, that is your problem, you do not have an MTCB/MTCC head unit, you have another type, try the "Android Auto General" forum, not the MTCB forums.

HIZPO Offering Quad Core A9 7" w/ Android 7.1

https://www.amazon.com/gp/product/B01JULCTYE/ref=ox_sc_act_title_2?smid=A17YHR60ETNWLC&psc=1
Thoughts? Thinking about ordering one.
I just returned a headunit from ATOTO because it worked like crap.
I like the prospect of 7.1 and offline maps already installed.
Quadcore vs Octacore I don't think makes a huge difference here.
Would love to know opinions.

I have a similar product to this with the product ID "B071LT7LC3" on Amazon. (I cannot post links yet) From the looks of things, my unit is likely the same hardware as yours, only with a different front panel and added DVD player. This is the information I read from the device:
MCU version: MTCD_XRC_V2.52_1
Build number: px3-userdebug 7.1.1 NMF26X eng.hct.20170527.145603 test-keys
Kernerl version: 3.0.101+ [email protected] #550
Model: px3 (800x480 O)
I sadly managed to brick mine by running an incompatible root method for Joying devices via Wireless ADB. I have not found a root method actually works on these units yet. If you are looking for an Android stereo that you can root, look elsewhere. I got a copy of the firmware from Hizpo, but not even that can fix the damage I did to it. It is with this warning I hope to prevent you making the same expensive mistake.
Note that you cannot use these units with a PC via USB, you must use Wireless ADB using an app. Use "126" to get into your factory settings and play with those, or "adbon" to enable debugging. You can also download a Development Options app to reach those settings, as they are hidden. The various methods of recoveries, including the one provided by the seller (Hold down the power button, turn on the power to the radio, release after 5 seconds and wait 30 to reach the recovery), did not seem to work for me either. It is possible I corrupted that too, but I am not sure.
I will happily share any other opinions I have about the unit if I ever manage to get it unbricked.

AndroidBricking said:
I have a similar product to this with the product ID "B071LT7LC3" on Amazon. (I cannot post links yet) From the looks of things, my unit is likely the same hardware as yours, only with a different front panel and added DVD player. This is the information I read from the device:
MCU version: MTCD_XRC_V2.52_1
Build number: px3-userdebug 7.1.1 NMF26X eng.hct.20170527.145603 test-keys
Kernerl version: 3.0.101+ [email protected] #550
Model: px3 (800x480 O)
I sadly managed to brick mine by running an incompatible root method for Joying devices via Wireless ADB. I have not found a root method actually works on these units yet. If you are looking for an Android stereo that you can root, look elsewhere. I got a copy of the firmware from Hizpo, but not even that can fix the damage I did to it. It is with this warning I hope to prevent you making the same expensive mistake.
Note that you cannot use these units with a PC via USB, you must use Wireless ADB using an app. Use "126" to get into your factory settings and play with those, or "adbon" to enable debugging. You can also download a Development Options app to reach those settings, as they are hidden. The various methods of recoveries, including the one provided by the seller (Hold down the power button, turn on the power to the radio, release after 5 seconds and wait 30 to reach the recovery), did not seem to work for me either. It is possible I corrupted that too, but I am not sure.
I will happily share any other opinions I have about the unit if I ever manage to get it unbricked.
Click to expand...
Click to collapse
FYI - there are literally 1000s of different MTCD units by about 10 different manufacturers, they all share pretty much the same hardware and the software is interchangeable

typos1 said:
FYI - there are literally 1000s of different MTCD units by about 10 different manufacturers, they all share pretty much the same hardware and the software is interchangeable
Click to expand...
Click to collapse
But certainly not root methods and certain firmwares. Pick the wrong one and you can brick your device beyond restoration - to the point where the recovery does not work and no firmware update worked to fix it. I had to get a new unit.

AndroidBricking said:
But certainly not root methods and certain firmwares. Pick the wrong one and you can brick your device beyond restoration - to the point where the recovery does not work and no firmware update worked to fix it. I had to get a new unit.
Click to expand...
Click to collapse
Yes, all RK3188 MTCD units are the same inside, they use the same SoM and ROMs ARE compatible as long as you get the screen res and processor type correct and even if you get the screen res wrong its no big deal, it wont brick.
However if you flash the firmware from an MTCB unit, or from an entirely different, unrelated unit , its sounds like this is what you did.

I was looking at this, but when I noticed it said PX3 I decided to skip.. Doesn't make sense to not have the PX5 chip.
Now if there was a version with a PX5 on the new os Id be interest.

strykr192 said:
I was looking at this, but when I noticed it said PX3 I decided to skip.. Doesn't make sense to not have the PX5 chip.
Now if there was a version with a PX5 on the new os Id be interest.
Click to expand...
Click to collapse
Sure the PX5 will be fast, but the PX3, especially with 2Gb of RAM is perfectly good.

bazgrim01 said:
Thoughts? Thinking about ordering one.
I just returned a headunit from ATOTO because it worked like crap.
I like the prospect of 7.1 and offline maps already installed.
Quadcore vs Octacore I don't think makes a huge difference here.
Would love to know opinions.
Click to expand...
Click to collapse
If you decide to order, please update with your impressions. I too tried the ATOTO M4 garbage head unit, and it has almost encouraged me to give up on them entirely. If you find this one to be worthwhile, with it being at a similar price I might give it a shot.

elder-lowater said:
If you decide to order, please update with your impressions. I too tried the ATOTO M4 garbage head unit, and it has almost encouraged me to give up on them entirely. If you find this one to be worthwhile, with it being at a similar price I might give it a shot.
Click to expand...
Click to collapse
No need for him to post impressions - its an MTCD unit and theres a whole forum about that you can read to see what theyre like :
https://forum.xda-developers.com/android-auto/mtcd-discussion-questions-development

Ordered this unit myself. I'll share thoughts after I get it.

Installed, and I'm definitely impressed. Very zippy and sounds great.

ricanxd said:
Installed, and I'm definitely impressed. Very zippy and sounds great.
Click to expand...
Click to collapse
What MCU version do you have ?

Xrc v2.54a_1

ricanxd said:
Xrc v2.54a_1
Click to expand...
Click to collapse
I meant MTCB/C or MTCD, by the look of it, its MTCD.

Yeah it's a MTCD unit px3

ricanxd said:
Yeah it's a MTCD unit px3
Click to expand...
Click to collapse
Lol, yes we know its RK3188/PX3, there are also MTCB and MTCC RK3188/PX3 units around, I wanted to know which you had, B, C or D.

typos1 said:
Lol, yes we know its RK3188/PX3, there are also MTCB and MTCC RK3188/PX3 units around, I wanted to know which you had, B, C or D.
Click to expand...
Click to collapse
Gotcha, just got confused since you asked what MCU version. I thought all new units are shipping with MTCD.

ricanxd said:
Gotcha, just got confused since you asked what MCU version. I thought all new units are shipping with MTCD.
Click to expand...
Click to collapse
No, not all units are MTCD, I ve heard a rumour that a company is working on MTCB/C N, even if that is untrue then you can still buy MTCB/C units.

That I know. You can still buy KitKat units..

ricanxd said:
That I know. You can still buy KitKat units..
Click to expand...
Click to collapse
Yeah, makes me laugh, the sellers must be stupid, why dont they update the KK ones to L ? they can sell them for more.

px5 upgrade

I have an older PX3 unit (i think, it's a rockchip rk3188 + 1gb ram, made by Joying) I'd like to upgrade. I've found a PX5 board: https://www.aliexpress.com/item/32820356300.html and have been reading stories about BT/WIFI not working. I'm handy with a soldering iron, so I can potentially change out the BT/WIFI module if it doesn't, I'm assuming I'd swap it with this: https://www.aliexpress.com/i/32953209958.html if I run in to problems? Also, is there anything I'd need to do to the unit before swapping out the boards? flash anything? Is there a better board to upgrade to? I've read about PX6 boards but can't seem to find em on aliexpress. In all honesty i think the PX5 would be a sufficient upgrade, since this PX3 is just stupid slow. I don't care about 3g/4g dongles, just really want something that will run headunit reloaded for android auto.

Is your unit an MTCD? Post MCU version.

marchnz said:
Is your unit an MTCD? Post MCU version.
Click to expand...
Click to collapse
I took these photos of the unit information, let me know if there's anything else you need. As far as I know its an MTCD unit.

kamikaze2112 said:
I took these photos of the unit information, let me know if there's anything else you need. As far as I know its an MTCD unit.
Click to expand...
Click to collapse
Yes you can upgrade the SOM and WIFI/BT module with the items you list. This is exactly what I did.

marchnz said:
Yes you can upgrade the SOM and WIFI/BT module with the items you list. This is exactly what I did.
Click to expand...
Click to collapse
Thanks. Is there any prep to do beforehand? or is it just drop in and go? I'll have to solder on that wifi/bt board i suppose, but I mean software wise?

kamikaze2112 said:
Thanks. Is there any prep to do beforehand? or is it just drop in and go? I'll have to solder on that wifi/bt board i suppose, but I mean software wise?
Click to expand...
Click to collapse
Suggest updating your MCU to latest available. The supplier should ship the SOM with Android installed.

marchnz said:
Suggest updating your MCU to latest available. The supplier should ship the SOM with Android installed.
Click to expand...
Click to collapse
Do you know which one is the latest for my unit? According to the list of cross compatible MCU's it should be 2.56?

I have a new PX5 SOM for sale and also a bricked one if someone is confident using OTG mod to unbrick it. I post to UK only

Hi There, What company px6 unit from China will be best for Honda accord 06 with original navigation and pss audio ?

arti777 said:
Hi There, What company px6 unit from China will be best for Honda accord 06 with original navigation and pss audio ?
Click to expand...
Click to collapse
Hi there as well
Please allow me to give you some advice.
1. The last post in this thread dates back to almost a year ago, so there is little chance of you getting the replies you are hoping for.
2. That gets me to the second point.
You could start a new thread in the Q&A section, with exactly that question you have posted today. Might get you some attention and ideally an answer to your question
Good luck!
Cheers,
mrjuniork

Anyway to tell if MTCB before buying?

After reading mixed reviews about these things, I want to be sure they can run a custom rom, before buying. Is there anyway to tell?
I have been looking at the 8 core 64gb memory, 4gb memory from Seicane for a Chrylser 300. This one on Alibaba.
https://www.aliexpress.com/item/400...earchweb0_0,searchweb201602_,searchweb201603_
Anyone know if this can run custom rom? or a way to find out?

You want an MTCD/E/P, MTCB units are long retired. Ask seller to tell you what the "MCU" is listed as -anything starting 'MTCD or MTCE or MTCP' is such a unit.

marchnz said:
You want an MTCD/E/P, MTCB units are long retired. Ask seller to tell you what the "MCU" is listed as -anything starting 'MTCD or MTCE or MTCP' is such a unit.
Click to expand...
Click to collapse
Thank you kindly I have asked.
Is there a brand that produces good MTCX units that I can see if they have a unit?

cyberlocc said:
Thank you kindly I have asked.
Is there a brand that produces good MTCX units that I can see if they have a unit?
Click to expand...
Click to collapse
They're all flawed, [GS] MCU Type (Factory) may still be sold by reseller Xtrons and [HA] MCU/Factory Type sold by Dasaita/HotAudio appear to be the better of the bad.

Thanks, they dont make one for my car. Thanks though.
I seen on 300 forums, there was a unit that keeps being suggested Thread goes back to late 17, till about now and all have had good results and units still work. So hopefully they have the right MCU.

I hope this is the right forum.

I apologize if not. I'm desperate for assistance and I hope someone can point me in the right direction. I recently purchased a Dasaita Vivid 10 on Amazon for my 2015 Camry. Few things:
After installation and turning it on, I wasn't presented with the first time user setup. Additionally, there were a few local MP3s on there. Specifically "Hotel California" from The Eagles. Is this normal or was I sold a used unit? The unit itself had the plastic on the screen. ZERO marks that it was used. Everything from my perception was brand new.
However, when I went to connect WiFi, I received the seemingly common error of it turning on and instantly back off again. As such, I did a factory reset. This erased all of the music that was on the device. This leads me to think that it shouldn't come with music...
Each time I turn my car on, the WiFi is a red X on the icon on the bottom right. To resolve this, I need to hctreboot the thing using factory settings. After this, it will work. However this really sucks and I don't want to do this every time I get into my car. Last night I changed the BT setting and I believe it may have fixed the wifi issue. However, this broke Bluetooth. When I loaded up a hardware info application, there was a mac address for WiFi but none for BT. Is there a way to know which module I have to select the right setting?
Can someone explain exactly what I can do to fix this? After searching for hours I am so lost with all of the terms. Vivid, Scout, MAX. I have no idea where to even get a firmware file. What does MTCD stand for? While it may be considered a budget radio, $530 bucks is a big chunk of change for a radio to be this unreliable. I wrote on Dasaita's forums and it looks like they couldn't care less to assist people. Frustrated, and I'd like help here before returning this and returning to the stock unit. I can provide pictures of anything if needed, just let me know!
Thank you all!

Welcome to the world of cheap Chinese origin Android head units and quality issues.
There is no first run, that is normal.
MTCD refers to a type of unit based on HCT design. There are a bunch of factories that produce these and a bunch of resellers, such as dasaita that sell them, applying made up brand names and model codes. Dasaita appear to price their units at a premium.
Suggest returning it for the hardware issue and look to an FYT based unit, which might get you closer to what you want.
I no longer recommend MTCD based units, and have since brought an FYT 7862UIS based device. The bugs are less, superior hardware, fantastic audio and works without all the mods/hacks.

marchnz said:
Welcome to the world of cheap Chinese origin Android head units and quality issues.
There is no first run, that is normal.
MTCD refers to a type of unit based on HCT design. There are a bunch of factories that produce these and a bunch of resellers, such as dasaita that sell them, applying made up brand names and model codes. Dasaita appear to price their units at a premium.
Suggest returning it for the hardware issue and look to an FYT based unit, which might get you closer to what you want.
I no longer recommend MTCD based units, and have since brought an FYT 7862UIS based device. The bugs are less, superior hardware, fantastic audio and works without all the mods/hacks.
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Aww man, not the news I wanted to hear however it was expected. At this point I might just go back to stock. I really loved how the dasaita fit into my Camry as it looks super OEM and clean.
Do you know of any of the FYT units that look OEM for a 2015 Camry?

Is this FYT: https://www.joyingauto.com/joying-1...radio-replacement-2015-2017-android-auto.html

I have a 2017 Camry and have this head unit:
https://www.amazon.com/SYGAV-Android-Toyota-Carplay-Navigation/dp/B08PKZY28H/ref=sr_1_1
While it's not a FYT unit, I will tell you that it does not have Vivid installed on it and has worked quite well in my Camry for over a year now.
Would be happy to answer any questions about it. I posted a review on Amazon and have answered a few questions over on Amazon as well.

jlbooth said:
I have a 2017 Camry and have this head unit:
https://www.amazon.com/SYGAV-Android-Toyota-Carplay-Navigation/dp/B08PKZY28H/ref=sr_1_1
While it's not a FYT unit, I will tell you that it does not have Vivid installed on it and has worked quite well in my Camry for over a year now.
Would be happy to answer any questions about it. I posted a review on Amazon and have answered a few questions over on Amazon as well.
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Thanks so much for this! If I can't get my Dasaita working correctly, I will absolutely return and get that one!

Check this firmware recently released:
ha3_rk3399_10.0_ota(20220329+蓝牙MCU专用包).zip
Shared with Dropbox
www.dropbox.com