Develop Bugs

Need Stock-ROM for P8000(B)

Yesterday I bricked my brand new P8000(B) - the new version with Marshmallow 'out of the box' (and the new SIM slots etc...)
I tryed to reflash several stock- and custom ROM's but they don't work because they are made for the 'old' version and there must be major differences in the hardware. At the moment the main problem is that the LCD driver is wrong and the display shows only lines and blurry spots
The Phone was running on ROM "P8000_6.0_20160516" - this ROM is not available at needrom or bbs.elephone.hk even Google doesnt know
It would help a lot if some could supply the ROM "P8000_6.0_20160516" - thank you!

FrauHofrat said:
Yesterday I bricked my brand new P8000(B) - the new version with Marshmallow 'out of the box' (and the new SIM slots etc...)
I tryed to reflash several stock- and custom ROM's but they don't work because they are made for the 'old' version and there must be major differences in the hardware. At the moment the main problem is that the LCD driver is wrong and the display shows only lines and blurry spots
The Phone was running on ROM "P8000_6.0_20160516" - this ROM is not available at needrom or bbs.elephone.hk even Google doesnt know
It would help a lot if some could supply the ROM "P8000_6.0_20160516" - thank you!
Click to expand...
Click to collapse
I can do nothing else than blaming you, I wrote a reply yesterday to the eragon forum that there's someone else who flashed -not even a custom rom- just the root .zip that was for the "old" p8000 and got his phone bricked the same way as you (LCD driver problem). That's why I asked for a dump/backup. It could have been useful for you too (as in this case) and for the other guy too. But nevermind, I hope that you learn from this for later things... anyways, the other guy has contacted elephone on their facebook, so I hope you'll get the rom so you can use your device again. Good luck!

I have this version too, just got it today.
If someone can explain to me how to create the scatter file and the backup, I'll do it.
I have some experience with this stuff, but MTKDroidTools tells me unknown rom structure.
Any help?

I do have the same problem (see here: http://forum.xda-developers.com/elephone-p8000/general/rom-p8000-t3431571 ). I just wanted to root the phone because I liked to change the wifi modem file but i didn't even realize that I got another version of the phone at this point, so I bricked it.
I also contacted the support via facebook, but the support guy had to ask the engineers for help.
But maybe someone can help Emileh taking a dump of his phone, that would be really great!

@ardrift
you are sooo right but I have'n expected that two phones of the same type contain conplete different hardware respectively the firmware is not supporting both hardware versions. Even the manufacturer does not metion to check the hardware version before flashing...
@Emileh @flo1k
I do have a second 'untouched' P8000(B) too - and I'm starving to copy the firmware from this working phone to the faulty phone if someone could explain how...

problem solved
flo1k managed to get a stock ROM for this hardware version - the softwarepackage is named K06TE-A.A.vR14.E1.160707 and should be available at the elephone forum soon....
Further information you can get here http://forum.xda-developers.com/elephone-p8000/general/2016-version-fingerprint-scanner-t3436270

MTCD - Verified Cross compatible MCUs

This thread is to document MCUs found to be cross-compatible between MTCD units, which includes PX3 and PX5 variants, which share identical mainboard hardware and MCU Chip STM32F091.
The following MTCD & MTCE (as of v2.56) MCUs have been validated as cross compatible on 1024x600 units:
- MLT - 01/07/17 - caution - has resulted in issues for some @leonkernan
- JY
- KBT - 08/12/2017 - thanks @abagos
- KD (v2.40_2 - enables bluetooth hands free in both front speakers)
- KGL
- KSP thanks @Overmann
- GS - Note "version unmatch" error and fix below No issue experienced on MTCE going from JY 2.80 to GS 2.78 and back to HA 2.80 - March 2018
- GS compatible on MX (see post #513)
- HA (v2.56 06/07/17 - note v2.52 on enables "shutdown delay when acc off" menu) HA MTCE (30/09/17) V2.65 https://www.sendspace.com/pro/dl/ufie8k
See this thread for pics where MCU HA and KD has been applied on JY. https://forum.xda-developers.com/showpost.php?p=72737797&postcount=640
I initially upgraded to KD 2.40, then HA v2.52 after first exporting the MCU settings.
Note that I had to reapply MCU settings in [factory sertings] to configure radio, LED, bluetooth, hardware keys, volume levels between radio, bluetooth, system etc.
MCUs were previously thought to be manufacturer specific - e.g. HA, JY, GS, KD, however I have found that they are compatible and of interest where there is either a specific issue with your MCU (e.g. bluetooth out of one speaker, to enable PX5 sleep mode control) or the vendor has long ceased to support & release updates - such as JY.
MCU cross-compatibility became of interest to me when I upgraded my JY [MCU v2.06_2] PX3 with a HCT PX5 SOM and wanted to enable the MCU specific menu item [shutdown delay when ACC off] to control sleep as found on HA/Dasaita.
I first noted that from an XDA post listing JY an KD v2.06_2 being identical and on that assumption, upgraded to KDv2.40_2, which successfully applied - but had to reconfigure factory settings.
Following on, I found a post which has an image of a GS board & MCU chip - noted it was identical to the MTCD JY MCU chip [STM32F091] - then came across a post where a user had inadvertently applied a MTCD GS MCU to a MTCD JY without bricking it.
I then started comparing same version number firmware files from various manufacturer MCUs with a text compare tool. From this work, I had enough info to compare the latest HA v2.52 and conclude it 'should' be compatible. Indeed it is.
As always, check first (suggest confirming MTCD, MCU Chip part number, view/compare the fw files, ensure you have original MCU FW, backup MCU settings or document the settings to ensure your hardware controls, volume control, bluetooth, radio, canbus etc are setup correctly). Apply at your own risk.
Please post your results and I will update this thread.
Updates:
UPDATE: 26/06/2017 Users of 800x480 Users must also apply file[dmcu.ext], a text file containing:
For PX3 --> screen:3
For PX5 --> screen:1
01/07/17 - MLT
06/07/17 - KGL confirmed and new HA v2.56
30/09/17 - MTCE MCU confimed compatible
08/03/18 - MTCE JY/GS/HA compatible - No issue experienced on MTCE going from JY 2.80 to GS 2.78 and back to HA 2.80
GS Specific Notes:
Oberbergler said:
For all those with a GS: Our unit is compatible with the MTCE MCU but you have to restore your settings and maybe to manually reconfigure your touchscreen and buttons. There is a simple function to do this in the factory settings (126) which is called key study. My touchscreen was also swapped by the x axis. I had to go with the swapped touchscreen into the settings, configure it, reboot the unit and everything was fine. For the buttons you have also the possibility to use short press and long press buttons, which is great because our units (at least mine) has only five buttons and no return button. So I use now the power off button as return in short press mode and power off in long press
Click to expand...
Click to collapse
Version unmatch see this post where user resolved by reapplying MCU AND Software APK Fix Here
- Attached Version Unmatch APK fix to this post, thanks @Wadzio
GS Configuration Settings file:
Bose321 said:
Here it is: https://gerbenbol.com/android/dmcu.cfg.
Click to expand...
Click to collapse
Do not dilute this thread by posting "how-to" questions such as - how do I update the MCU, what unit do I have, can I do it, how do I find factory settings, etc. This thread is to document cross-compatible MCUs and the fixes they apply.

Hi! Confirmed, I've upgraded to PX5 (JY UL135). Flashed KD2.40 over JY 2.06_2 then flashed HA 2.52 and everything is working as it should be. Thanks for your work.

I can confirm a cross compatibility as well.
My Unit is a xtrons device with die MCU firmware GS 2.43 and yesterday i did flash the HA 2.52. But be sure to save your mcu config first. Otherwise the hardware buttons won't do what they were supposed to do. But after flashing the firmware and restoring the config, everything is back to normal.

To make it easier to re-apply the settings, you can use the mcu.cfg function and flash it with the MCU, just in case anyone didnt know.

Some time ago I tried to investigate what actually those abbrevations mean. In my understanding GS, JY, HA is related to the canbus profiles, not directly to the reseller. It seems to be reasonable because MCU has really tiny flash capacity and add all canbus configurations to one chip would be impossible.

f1x said:
Some time ago I tried to investigate what actually those abbrevations mean. In my understanding GS, JY, HA is related to the canbus profiles, not directly to the reseller. It seems to be reasonable because MCU has really tiny flash capacity and add all canbus configurations to one chip would be impossible.
Click to expand...
Click to collapse
No, you are wrong there - the letters very definitely relate to the manufacturer, NOT the CAN Bus profiles KLD = "Klyde" KGL, = "Kai Ge Le", JY = "Joyous" etc, this has been established for years.
The seller has NOTHING to do with the software at all.
The CAN Bus profiles are named in factory settings
On MTCB/C headunits there was a slight difference in the code between MCU types so they were not interchangeable (apart from BN and HA), it would seem that on MTCD units there is no such variation in the code.

Does this also apply to LM_ (Erisin) MCUs?
I have a Erisin 5048 HU with MCU 2.41_1. Does anyone have any experience in flashing a different MCU to a LM_ type MCU? I´m worried to brick my HU if a flash a higher HA_ version.
Any info would be highly appreciated.
Greetings
Speedycarv

SpeedyCarv said:
I have a Erisin 5048 HU with MCU 2.41_1. Does anyone have any experience in flashing a different MCU to a LM_ type MCU? I´m worried to brick my HU if a flash a higher HA_ version.
Any info would be highly appreciated.
Greetings
Speedycarv
Click to expand...
Click to collapse
There are no "Erisin" MCUs - Erisin are a seller only, they sell units made by several manufacturers. You have an "LM" unit.
I would stick to what @marchnz has tested already, although having said that, on the MTCB/C units if you flash the wrong MCU you can simply flash the correct MCU to correct it, cant say if its the same for MTCD units, up to you if you want to risk it.

typos1 said:
There are no "Erisin" MCUs - Erisin are a seller only, they sell units made by several manufacturers. You have an "LM" unit.
I would stick to what @marchnz has tested already, although having said that, on the MTCB/C units if you flash the wrong MCU you can simply flash the correct MCU to correct it, cant say if its the same for MTCD units, up to you if you want to risk it.
Click to expand...
Click to collapse
My level of knowledge has not grown in any way after reading your post.
Thank you anyway..

SpeedyCarv said:
My level of knowledge has not grown in any way after reading your post.
Thank you anyway..
Click to expand...
Click to collapse
Maybe read it again ?
Basically, you could risk trying it - MTCB/C units can be restored if the wrong MCU is flashed, maybe MTCD units could be restored if the wrong MCU is flashed also ? But maybe not, so that is your decision whether to try or not.
Otherwise stick to what @marchnz has said and do not try it.
And your unit is NOT an "Erisin" unit, they are sellers and sell units from many manufacturers, you have an LM MTCD unit.
Cant make it any clearer than that.

typos1 said:
Maybe read it again ?
And your unit is NOT an "Erisin" unit, they are sellers and sell units from many manufacturers, you have an LM MTCD unit.
Click to expand...
Click to collapse
Not necessary to read again. I already knew that. That's what i tried to express in typing "my level of knowledge has not grown" Sorry if i write misunderstandable, i'm not a native speaker (German).
Thank you again for your time and patience

typos1 said:
To make it easier to re-apply the settings, you can use the mcu.cfg function and flash it with the MCU, just in case anyone didnt know.
Click to expand...
Click to collapse
Can you explain me how ? Do I put the mcu.cfg file with the new mcu in the root of gps SD ?
In factory settings I see only the option to export, not to import. Or did I miss something ?

Wout2426 said:
Can you explain me how ? Do I put the mcu.cfg file with the new mcu in the root of gps SD ?
In factory settings I see only the option to export, not to import. Or did I miss something ?
Click to expand...
Click to collapse
Thats correct, just put the mcu.cfg file on the SD card with the mcu.img.

typos1 said:
Thats correct, just put the mcu.cfg file on the SD card with the mcu.img.
Click to expand...
Click to collapse
Or, once mcu has been upgraded, you can remove the mcu update (.img) from the root of the gps card and apply the config (.cfg) on the root of the gps card separately - by running the 'upgrade MCU', it will see .cfg file and apply it.

Update for 800x480 users who update to the latest MCU - you must also apply a dmcu.ext
DMCU.EXT details
DMCU.EXT & screen resolution setting/howto/details
dmcu.ext details for PX5 800x480
That said - why is anyone purchasing a PX5 unit with 800x480?!?!

KD --> HA for 800x480 Screen
I have had quite an experience over the weekend, but am able to report successfully updating a PX3 MTCD_KD unit to a PX5 with the HA2.52 MCU Code.
For those of us with 800x480 screen sizes, as now noted in the main thread, we need to create the dmcu.ext file with the appropriate screen size to be flashed with the dmcu.img file.
Just a note that if you run across the issue of not having the appropriate resolution; don't freak out.
One interesting note I hadn't mentioned before is that after the PX5 started thinking it was 1024, I replaced it with the PX3. The PX3 booted thinking it was 1024 also. After reverting the PX3 to 800 (flashing with screen:3), I replaced the PX5. The PX5 however, did not revert back to 800, but remained at 1024. The PX5 did not revert back to 800 until after I reflashed the MCU, specifically stating it was to be 800 (screen:1).

So I tried HA 2.52 on Xtrons TB706APL
I get the following error on reboot.
After I update from dmcu.cfg it goes away but if you go into factory settings and change anything it comes back.
I also didnt see the option for the shutdown that this mcu is supposed to have.

typos1 said:
Thats correct, just put the mcu.cfg file on the SD card with the mcu.img.
Click to expand...
Click to collapse
I assume you mean "dmcu.img" and "dmcu.cfg"? That's how my downloaded img and backup cfg are called.

Bose321 said:
I assume you mean "dmcu.img" and "dmcu.cfg"? That's how my downloaded img and backup cfg are called.
Click to expand...
Click to collapse
Yeah, thats right - the "d" is just there to show its an MTCD MCU not an MTCB or MTCC one.

1-2-Hak said:
So I tried HA 2.52 on Xtrons TB706APL
I get the following error on reboot.
After I update from dmcu.cfg it goes away but if you go into factory settings and change anything it comes back.
I also didnt see the option for the shutdown that this mcu is supposed to have.
Click to expand...
Click to collapse
The shutdown option is under System Settings --> extra settings. You wont find it in the factory settings. Just FYI.
Which dmcu.cfg did you use? I might be wrong, but it seems to me it might be dangerous to use different dmcu.cfg files with different versions of the MCU Code.

PX5 Rockchip Tools - FW recovery without Hardware Mods

Hi,
Sharing these tools which were kindly shared on the Joying Forums (STT / STT-TEC) firmware for upgrading/recovering PX5 SOMs using the SDCARD create tool. On review, the zip contains additional tools to customise, create, unpack, repack firmware.
These tools may be of a breakthrough to both recovery and customising PX5 Firmware - the SDCARD create tool may be able to recover corrupt/bootlooping PX5 units without hardware mods, as the PX3 version results in a black screen when trying.
Note: change [config.ini] to Selected=2 to force english.
[Language]
Kinds=2
Selected=2
LangPath=Language\
Note Joying PX5s are STT and not HCT, the SOMs may be similar but the MCU code/comms may be different. e.g. Joying doesnt use MTC style apps, but this may be similar - unknown. Also note that the Joying MCU is different in terms of the filename/structure, but probably the very same hardware. If someone has one of these Joying PX5 units, would appreciate any info such as PX5 SOM module PICs, MCU pics/type, mainboard Pics. I havent attempted to flash a Joying MCU and Px5 update over my HCT as probably nothing to gain.
Download HERE
Note - Make your own OTG cable from a USB cable and two resistors!.

This indeed looks very promising. In fact if I understand properly it's able to create the directory structure on an SD card to recover even from completely busted ROM content.
It basically turns an update.img into sdupdate.img which can be flashed from an sdcard. I currently can only assume that the PX5 SoM respectively Rockchip boot process checks if certain files exist on any attached file system and if they do it will start recovery. Just like almost any mobile phone or ARM based hardware like routers, access points or similar I ever recovered.
Given this it will be a matter of time to figure out how to recovery-flash Android 8 on PX5 SoM. I started to have a look at what is available but the Android 8 ROM found in some file shares seems to be an OTA image and not a recovery image. Using those tools and tools like the included AFPTool (or 3rd party imgRePackerRK) it might be possible to build a recovery image. Although I am not sure if the OTA image even contains all required files. Probably not. The system image perhaps only contains updated files and might be incomplete.
Also the fact that this Android 8 image is an OTA image yields the question who is providing OTA images for PX5 units. At least I am not aware about any manufacturer distributing OTA updates.
The tools you provided also includes an interesting utility: RKOsConfig.exe
Unfortunately it's all in Chinese only but some items are obvious. It looks like a tool to pre-configure the Android ROM for specific device. Allowing to set DPI, system language, time zone, video decoder, USB and UART type and specifically also the screen type where there are 2 presets in lcdlist.ini for 1024x600 and 800x480 screens.
The toolset also contains a command-line tool (RKImageMaker.exe) and a sample batch script (mkupate.bat) which shows how update.img can be converted to sdupdate.img as well as how the update.img is packed.
Unfortunately the Android 8 OTA image seems not to include some of them like kernel.img, misc.img, recovery.img and resource.img. Likely since the OTA update does not ship them. Moreover system.img might be covered by system.new.dat but this might contain only the files which are updated via OTA and might not include some of the files.
So it needs a bit of further analysis and perhaps we also need to wait for the first update image for Android 8 units (not OTA) to appear. I have also extracted an older Android 6 update.img which contains all the required files, so I guess the Android 8 OTA update is likely insufficient but future full-image updates will provide all the data to create recovery sdupdate.img to be flashed on Android 6 units.

SkyBeam2048 said:
This indeed looks very promising. In fact if I understand properly it's able to create the directory structure on an SD card to recover even from completely busted ROM content.
It basically turns an update.img into sdupdate.img which can be flashed from an sdcard. I currently can only assume that the PX5 SoM respectively Rockchip boot process checks if certain files exist on any attached file system and if they do it will start recovery. Just like almost any mobile phone or ARM based hardware like routers, access points or similar I ever recovered.
Given this it will be a matter of time to figure out how to recovery-flash Android 8 on PX5 SoM. I started to have a look at what is available but the Android 8 ROM found in some file shares seems to be an OTA image and not a recovery image. Using those tools and tools like the included AFPTool (or 3rd party imgRePackerRK) it might be possible to build a recovery image. Although I am not sure if the OTA image even contains all required files. Probably not. The system image perhaps only contains updated files and might be incomplete.
Also the fact that this Android 8 image is an OTA image yields the question who is providing OTA images for PX5 units. At least I am not aware about any manufacturer distributing OTA updates.
The tools you provided also includes an interesting utility: RKOsConfig.exe
Unfortunately it's all in Chinese only but some items are obvious. It looks like a tool to pre-configure the Android ROM for specific device. Allowing to set DPI, system language, time zone, video decoder, USB and UART type and specifically also the screen type where there are 2 presets in lcdlist.ini for 1024x600 and 800x480 screens.
The toolset also contains a command-line tool (RKImageMaker.exe) and a sample batch script (mkupate.bat) which shows how update.img can be converted to sdupdate.img as well as how the update.img is packed.
Unfortunately the Android 8 OTA image seems not to include some of them like kernel.img, misc.img, recovery.img and resource.img. Likely since the OTA update does not ship them. Moreover system.img might be covered by system.new.dat but this might contain only the files which are updated via OTA and might not include some of the files.
So it needs a bit of further analysis and perhaps we also need to wait for the first update image for Android 8 units (not OTA) to appear. I have also extracted an older Android 6 update.img which contains all the required files, so I guess the Android 8 OTA update is likely insufficient but future full-image updates will provide all the data to create recovery sdupdate.img to be flashed on Android 6 units.
Click to expand...
Click to collapse
Hotaudio/Dasaita has a OTA update function since a few months. The update file is also from HA. I think that it is only a matter of time that a .img file from another reseller or even hotaudio will be published and then it should be possible to update

Oberbergler said:
Hotaudio/Dasaita has a OTA update function since a few months.
Click to expand...
Click to collapse
Oh, I didn't know. Are they shipping OS updates on a regular base now or announced to do? Perhaps even including Android security updates? (haha, this might be just a dream)
If they do that would be a real step ahead and a good reason to buy Dasaita/HA units in the future. Although the OTA updates are likely also shipped to 3rd party units if they run HA ROM. I wonder how HA deals with this as OTA updates will be tested on HA units only and if they break some 3rd party units via OTA update they might get support inquiries from customers which don't even have a HA unit.
But generally I regard this as a huge step ahead.
Oberbergler said:
The update file is also from HA. I think that it is only a matter of time that a .img file from another reseller or even hotaudio will be published and then it should be possible to update
Click to expand...
Click to collapse
This forum is quite active. Does anyone have any contacts to HCT?
I guess they might not want to talk to modders and developers directly...
I really like Dasaita/HA is present here and publishing regular updates. I just bought a car-specific unit with Anroid before actually knowing about MTCD or PX3/PX5 at all. Now after being in this discussions for a while my favorite seller would be Dasaita/HA. Unfortunately they don't have a car-specific model for me but for future purchases it will be my first address to check.

@marchnz - @mum1989 has an Oreo unit, he has offered to try and dump the ROM
SkyBeam2048 said:
.
This forum is quite active. Does anyone have any contacts to HCT?
Click to expand...
Click to collapse
Try their website :
http://en.hctsz.com/

SkyBeam2048 said:
Oh, I didn't know. Are they shipping OS updates on a regular base now or announced to do? Perhaps even including Android security updates? (haha, this might be just a dream)
If they do that would be a real step ahead and a good reason to buy Dasaita/HA units in the future. Although the OTA updates are likely also shipped to 3rd party units if they run HA ROM. I wonder how HA deals with this as OTA updates will be tested on HA units only and if they break some 3rd party units via OTA update they might get support inquiries from customers which don't even have a HA unit.
But generally I regard this as a huge step ahead.
This forum is quite active. Does anyone have any contacts to HCT?
I guess they might not want to talk to modders and developers directly...
I really like Dasaita/HA is present here and publishing regular updates. I just bought a car-specific unit with Anroid before actually knowing about MTCD or PX3/PX5 at all. Now after being in this discussions for a while my favorite seller would be Dasaita/HA. Unfortunately they don't have a car-specific model for me but for future purchases it will be my first address to check.
Click to expand...
Click to collapse
I have installed the HA ROM on my GS and tried once in November to update via OTA knowing that hotaudio has released here in the forum a newer ROM than the one I had installed on my unit but it didn't work. Don't know if it was because I have a GS or if they didn't release the update via OTA.
Don't expect security patches. They don't care about them :laugh:

typos1 said:
Try their website : http://en.hctsz.com/
Click to expand...
Click to collapse
OK. My question was rather towards the community if someone ever tried.
Their website leaves little hope that they are even open to a collaboration. The english page is very incomplete and only chinese page seems to ahve some Sofia and PX3 boards listed. As far as I can see they are manufacturing some standard SoM they market to resellers as we know. Not sure though about the design of MTCx main boards. As many sellers seem to have very similar designs this makes me believe they are perhaps also designed by HCT or at least there is some reference design available to all unit manufacturers. Moreover some apps on our units are developed by HCT directly. Apps which interface with the MCU. So I believe HCT either provides the design or is manufacturing the complete unit, not only the SoM.
Anyway we might actually need a translator or someone in china to get in direct contact with HCT and it's unlikely for such companies to collaborate with the community. Nevertheless I have sent them a mail asking about community involvement. Maybe I go the wrong direction here and chances to succeed are near-zero, but hey; you don't know if you don't try.

Oberbergler said:
I have installed the HA ROM on my GS and tried once in November to update via OTA knowing that hotaudio has released here in the forum a newer ROM than the one I had installed on my unit but it didn't work. Don't know if it was because I have a GS or if they didn't release the update via OTA.
Don't expect security patches. They don't care about them :laugh:
Click to expand...
Click to collapse
I wonder if the OTA does an MCU check as the Lollipop update on KLD MTCB/C units did ? You could try flashing an HA MCU and seeing if it updates via OTA after. If it does then it could be quite easy for a dev to work around it as @dsa8310 did to allow Lollipop on any MTCB/C unit.

typos1 said:
I wonder if the OTA does an MCU check as the Lollipop update on KLD MTCB/C units did ? You could try flashing an HA MCU and seeing if it updates via OTA after. If it does then it could be quite easy for a dev to work around it as @dsa8310 did to allow Lollipop on any MTCB/C unit.
Click to expand...
Click to collapse
I'm not playing anymore with MCU's since I've done exactly that what you've suggested me. The HA MCU converted my unit into a HA with many problems. When I tried to go back to GS I had the version unmatch error. Fortunately the seller exchanged my unit.

SkyBeam2048 said:
OK. My question was rather towards the community if someone ever tried.
Their website leaves little hope that they are even open to a collaboration. The english page is very incomplete and only chinese page seems to ahve some Sofia and PX3 boards listed. As far as I can see they are manufacturing some standard SoM they market to resellers as we know. Not sure though about the design of MTCx main boards. As many sellers seem to have very similar designs this makes me believe they are perhaps also designed by HCT or at least there is some reference design available to all unit manufacturers. Moreover some apps on our units are developed by HCT directly. Apps which interface with the MCU. So I believe HCT either provides the design or is manufacturing the complete unit, not only the SoM.
Anyway we might actually need a translator or someone in china to get in direct contact with HCT and it's unlikely for such companies to collaborate with the community. Nevertheless I have sent them a mail asking about community involvement. Maybe I go the wrong direction here and chances to succeed are near-zero, but hey; you don't know if you don't try.
Click to expand...
Click to collapse
Yes, the site is rubbish.
The motherboards are designed and made by each manufacturer to, as youve said, a set of standards that meet certain criteria so that ROMs and (most) MCUs are interchangeable, although each motherboard may be a different design.
Almost all sellers (HA is the only one who sells and manufacturers as far as I can remember) are entirely separate from the manufacturers and have nothing to do with the design or manufacturing.
It used to be though that "MTC" was behind the development of the SoM software, then it was thought htta HCT was behind it, in the light od @marchnz's first post I m not sure this is correct now.

Joying px5 units are not syu/fyt, FYI.

gtxaspec said:
Joying px5 units are not syu/fyt, FYI.
Click to expand...
Click to collapse
If not, do you know what they are?

marchnz said:
If not, do you know what they are?
Click to expand...
Click to collapse
Uncertain, would need access to a live unit.

gtxaspec said:
Joying px5 units are not syu/fyt, FYI.
Click to expand...
Click to collapse
There are no "joying" units - Joying are a seller, I take it you mean Shenzhen Joyous RK3368/PX5 units ?
Although I was under the impression that Joyous no longer made MTC units and had switched to making the "009" MCU (ie non MTC) Intel units.
I gather that @marchnz has seen ".syu" and "fyt" on he motherboard or SoM and thats why he suggested that in his first post.
gtxaspec said:
Uncertain, would need access to a live unit.
Click to expand...
Click to collapse
So without access to a unit what makes you say that ?

typos1 said:
There are no "joying" units - Joying are a seller, I take it you mean Shenzhen Joyous RK3368/PX5 units ?
Although I was under the impression that Joyous no longer made MTC units and had switched to making the "009" MCU (ie non MTC) Intel units.
I gather that @marchnz has seen ".syu" and "fyt" on he motherboard or SoM and thats why he suggested that in his first post.
So without access to a unit what makes you say that ?
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Click to collapse
Look at the kernel and file system. Fyt units are very specific. Joyous is a different reseller than joying also. Dunno what 009 unit is. FYT makes their own custom SoM with various cpu's.

gtxaspec said:
Look at the kernel and file system. Fyt units are very specific. Joyous is a different reseller than joying also. Dunno what 009 unit is. FYT makes their own custom SoM with various cpu's.
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Click to collapse
Joyous is NOT a seller, Joyous is the manufacturer of all "JY" units, its Joying that is a seller.
An 009 MCU unit is a non MTC Intel unit.
I dont think the kernel or software are relevant, we re talking about MTCD/E hardware not software.
I ve not seen any MTCB/C/D/E SoMs without "HCT" on them - HCT makes all MTC SoMs, at least thats what has been established over the last 3 years, but please if youve got any photographic evidence to the contrary post it here to prove otherwise.

typos1 said:
Joyous is NOT a seller, Joyous is the manufacturer of all "JY" units, its Joying that is a seller.
An 009 MCU unit is a non MTC Intel unit.
I dont think the kernel or software are relevant, we re talking about MTCD/E hardware not software.
I ve not seen any MTCB/C/D/E SoMs without "HCT" on them - HCT makes all MTC SoMs, at least thats what has been established over the last 3 years, but please if youve got any photographic evidence to the contrary post it here to prove otherwise.
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Click to collapse
It is relevant, because from a live system, you can tell what SoM the unit is using
Also, Shenzhen Joyous (which was a manufacturer/seller) does not currently make any PX3 or PX5, let alone any Intel units. This may have been true in the past, no longer.
Also, HCT does make a variety of SoM's, but they certainly don't make all of them.

gtxaspec said:
Joying px5 units are not syu/fyt, FYI.
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Click to collapse
Quite right, the JY PX5 is a STT, according to the RKOSTOOL: 深圳市齐顶电子科技有限公司 - Shenzhen Top Electronics Technology Co., Ltd. Top.
And a quick google lists the following (from the "russian forum"):
JOYING
Model: px5
Procecor: 8 core 64bit CUP Coretex- [email protected] G
Machine code: 050014390000AA55
Android 6.0.1
Assembly number: MXC89L release-reys V6.4
Kernel version: 3.10.0
stt-tec @ ubuntu1204 # 48
Tue Aug 22 17:22:39 CST 2017
APP-TP6735 0.0.51
MCU-TP6735 4.31
BT-SD / 2017: 09: 13: 17: 38: 49 fw: Jun 29 2017 23:57:52

.deleted

Please ask
https://www.facebook.com/profile.php?id=100010581348702
He is a member in this forum.
He can speak English and have contact to hct
Im sure he can help. I know that he listen to any wish and want help the community to get further...
---------- Post added at 03:42 AM ---------- Previous post was at 03:37 AM ----------
Also try to contact boyka from joying team his skype name is "mcloge"
Maybee he can help to

Update MCU (PX3)

Hello! I currently have this version of MCU: MTCE_LM_V2.75_1
Is it important to update MCU? Are there risks? After the installation should I configure something?
From the radio I can not update MCU, it does not find any update. But in a post of this forum (Dasaita) I have seen an update is it compatible with my radio unit? MTCE_HA_V3.06.zip
I have a PX3 of 2Gb.
Thank you

I just found this MCU file: MTCE_LM_V3.01c20190111 better this update? I do not know what is the latest MCU version of MTCE_LM_V2.75_1

It's better to keep it up to date, even when you dont experience issues with the device.
The updates are normally not that hard to install and version 3 has the function of teleconference within.
I noticed with my upgrade that the device doesnt freeze anymore during boot. But i had 1.9 installed and now 3.00

d5stick said:
It's better to keep it up to date, even when you dont experience issues with the device.
The updates are normally not that hard to install and version 3 has the function of teleconference within.
I noticed with my upgrade that the device doesnt freeze anymore during boot. But i had 1.9 installed and now 3.00
Click to expand...
Click to collapse
Could you tell me what is the most updated version of this MTCE_LM_V2.75_1? PX3 2Gb. Thank you

I thought the rom for the MCU is 3.01 for LM, you can find those on the forum, only a good search is required.
I have the GS version but i do not recommend installing an MCU from another supplier.
The android PX3 2GB roms can be found anywhere. Search for PX3 ROM LM.

Can somebody help me please
Can somebody help me with a mcu update file please as it keeps shutting down when using gps applications

black_ps said:
Can somebody help me with a mcu update file please as it keeps shutting down when using gps applicstions
Click to expand...
Click to collapse
Not an MTCD.

What do you mean?
marchnz said:
Not an MTCD.
Click to expand...
Click to collapse

black_ps said:
What do you mean?
Click to expand...
Click to collapse
Your unit is not an MTCB/C/D/E, asking in the wrong forums. Read on.
This entire thread is a waste of space in that there are more appropriate places the OP could have posted in or at least searched first, but that's another matter.

I have a MTCE_XRC_V2.79k_1 which has the Intel Sofia cpu. What MCUs can I use?

[Request] TCL 40D2740 [solved]

TV Model: TCL LED 40D2740
Current firmware : v8-MT56552-LF1V076
Hello community, may i please ask if anyone has the update for this Model of TCL, i can't find it on official website or it's branches on different regions
also Google yielded nothing for me except one close hit v8-mt56552-lf1v192
am not sure if they are compatible or not
Thank you in Advance

silveronin said:
TV Model: TCL LED 40D2740
Current firmware : v8-MT56552-LF1V076
Hello community, may i please ask if anyone has the update for this Model of TCL, i can't find it on official website or it's branches on different regions
also Google yielded nothing for me except one close hit v8-mt56552-lf1v192
am not sure if they are compatible or not
Thank you in Advance
Click to expand...
Click to collapse
So you found v192 version of software, and you currently have v076. Where is the problem? Rest of the file name is identical, its for this model. Also, TCL makes updates for platforms, not for particular models. So usually, if the beginning of firmware name is same, this case mt56, it means its compatible with all devices from that mt56 platform.

Plekst said:
So you found v192 version of software, and you currently have v076. Where is the problem? Rest of the file name is identical, its for this model. Also, TCL makes updates for platforms, not for particular models. So usually, if the beginning of firmware name is same, this case mt56, it means its compatible with all devices from that mt56 platform.
Click to expand...
Click to collapse
thank you for your input and clarification, like i said in the post am not sure if they are compatible, doubt got me cause was thinking it might be like phones where one last letter can mean different hardware that leads to different software

silveronin said:
thank you for your input and clarification, like i said in the post am not sure if they are compatible, doubt got me cause was thinking it might be like phones where one last letter can mean different hardware that leads to different software
Click to expand...
Click to collapse
It wont install if its not compatible. Tv checks firmware before installation.

hello community may i revive this thread by asking how to install the firmware, cause i tried these steps to no avail
pull off power cord
while holding power button plug the power cord
a sad face appears then it shuts down i tried many versions from TCL directly with no success
what made my TV not booting is a failed attempt to install gapps when i placed the gapps i changed their folder permissions when i rebooted it refused to start
thank you immensely in advance