yashsingh1/xdaforums huggingface dataset:
[MTCD Android Head Units General] homer.ali:
Not necessarily.

The point of DC unlocker is just to expose the modems COM ports in order to send the proper AT command to prevent the modem from entering USB mode.

These modems usually have a few modes that they can work in. Cd mode or USB mode is the mode that exposes the modem's USB storage to the device it is plugged into and what most of these modems default to as soon as they are plugged in. The idea is that windows or Mac users run the software found on the modems USB storage to install the propietary software that comes with it. Usually all that software does is send an AT command to switch the modem to one of its other modes like GSM or RNDIS.

Unfortunately since Android does not know how to handle running that autorun software what you end up getting is just a device that gives our headunits no internet.

My instructions above with the AT-CDRUN command are the specific AT commands for that brand of modem which I found by looking through the data sheet to disable it's built in USB mode. As a result, after you run that command, the modem just defaults to GSM mode when it's plugged into any device-- including android.

If you use ppp3 widget on android, this is essentially what it tries to do as well-- that is to say it plays around with AT commands with a goal of getting the plugged in modem to GSM mode or another mode the tablet can use for internet.

Now regarding GSM mode and RNDIS mode, GSM is exposed to the tablet as full 3/4g. It is essentially seen by android the same way as your sim card is seen by your phone. As long as the ROM knows what to do with a sim card, you can get full 4g signal.

RNDIS is basically simulated Ethernet. With this mode the modem exposes itself as an Ethernet cable to the tablet.

Now to get back to your question in order to potentially get your modem working you would need to

1)look for the specific AT commands for Alcatel modems to see if there is one to disable the USB or cd autorun mode-- good luck with this; the information here is often hard to find, difficult to read, and usually filled with wrong or misleading information.

2) figure out a way to send that AT command to the device-- it's worth noting that some brands allow for receiving AT commands via the web browser via the URL and other brands expose the COM ports to windows natively without any modding needed.

As long as you can do those two steps above, you can theoretically get any modem working with any android tablet.

Hope that helps
[MTCD Android Head Units General] shouk_1987:
Interesting and got your point

the two parts are tricky and two is dependant on one

when i plug it into windows , I have SCD U2S Diag ( COM31 ) in the device manager

No way for windows to maunually via GUI to force the modem to use the deisred mode ?!

Also can you explian more about ppp widget, i understood from you that it should try to navigate through different modes till it find the GSM mode and that's it or did i get you wrongly ?

Edit : I dunno what happen or make it like this but the com port is stick on SCD U2S Diag and windows cannot recognize the modem and its cd rom partition is not loaded and its interent software is not seeing the device

Led on the modem stick is constant red and that's it
[MTCD Android Head Units General] homer.ali:
So your device is in diagnostic mode which means it's in the state where it's ready to receive diagnostic commands via the com port. Try the step with PUTY in my instructions but don't run the at zdcrun command.

Just do AT and hit enter and you should get an "OK" back.

If you do then just get the AT command for your device to disable the USB mode and you're good.

Edit:

try AT+ZSWITCH=L

Followed by AT+ZADSET=E

Per a very cursory glance at some Alcatel data sheets those commands should put the modem to work with Linux

You could also try the same but with ZSWITCH=X and ZADSET=R to try xp mode with RNDIS mode instead
[MTCD Android Head Units General] shouk_1987:
Apology for my ignorance

How did I go to diag mode as I have no clue ?

When I open putty , u said something about serial communication , I mean what should I exactly do when I open putty in its gui ?

Thanks in advance

Edit : I was able to understand the putty part to open the serial com port and forced on the terminal discplince options but when the cmd open just a blank screen and seems no communication with the stick
[MTCD Android Head Units General] homer.ali:
No worries this is definitely not simple stuff especially if you haven't used it before.

With PUTY black cmd open try typing in "AT" without the quotes and hit enter in that cmd window. If it works you'll get "OK" back meaning you have serial communication with the modem and can start giving it commands.

If it doesn't work the troubleshooting for this is broad and requires quite a bit of understanding, trial and error. Most commonly the problem is with the newline/carriage return that the modem expects for serial commands but that's a whole other topic...

I would recommend that if you're not getting reliable serial communication just bite the bullet and get one of the modems that is known to work.
[MTCD Android Head Units General] stokedcrf:
I was in the same boat as you, but decided the most cost effecient way to get what you're trying to do was use tasker with my phone (since my phone has 50gb LTE data)

Basically, when my phone sees my car (bluetooth) tasker automatically flips on tethering and auto-connects. Car turns off (bluetooth disconnects) then tethering turns off.

A simple and somewhat cheap solution to give your headunit data automatically...with no need for extra sim cards/costs!

Still, I'm down for trying out a new model should one ever show up :)
[MTCD Android Head Units General] shouk_1987:
I have managed to get an old huwaei E173 stick from a friend that he was not using

I tried the AT^U2DIAG but it is not supported porbably due to newer firmware 21.xx

So i used the Setport commands and managed to make the stick as Modem only mode

I used command to close all other ports except the Modem and PCUI port

as i googled and found out that if i disabled PCUI port then it will stick on the mode i have set and no ability again to control and enter commands

Remaining is know which App to configure the APN on the Android headunit and see the connex status

I used Putty and connected through PCUI COM port

Before Change

===============

AT ^ SETPORT?

^SETPORT:A1,A2;1,16,3,2,A1,A2

AT ^ GETPORTMODE

^GETPORTMODE: TYPE: WCDMA: huawei,MDM:0,NDIS:1,DIAG:2,PCUI:3,CDROM:4,SD:5

AT^SETPORT=?

^SETPORT:A1: CDROM

^SETPORT:A2: SD

^SETPORT:A: BLUE TOOTH

^SETPORT:B: FINGER PRINT

^SETPORT:D: MMS

^SETPORT:E: PC VOICE

^SETPORT:1: MODEM

^SETPORT:2: PCUI

^SETPORT:3: DIAG

^SETPORT:4: PCSC

^SETPORT:5: GPS

^SETPORT:6: GPS CONTROL

^SETPORT:16: NCM

================================================================================================

After Change

=============

AT ^ SETPORT?

^SETPORT:;1,2

AT ^ GETPORTMODE

^GETPORTMODE: TYPE: WCDMA: huawei,MDM:0,PCUI:1
[MTCD Android Head Units General] sandar1980:
Confirmed, unlocked ZTE MF190 modem 3g bundle is working on unrooted PX30 android head unit.
[MTCD Android Head Units General] shouk_1987:
My 3G huwaei E173 stick is on Modem only mode now and nothing happens when i connect it to the Headunit

I have Dasaita Max6 ( Px6 chipset ) on android 9 on malaysk rom

I cannot add APN as it just doesnot save the APN ( same effect was on the stock rom )

Just nothing happens when i insert the stick ( its led just blink ) and that's it

anybody can assist me please ?
[MTCD Android Head Units General] homer.ali:
You can try to install ppp3 widget and set it up briefly through there and then quickly try to add an APN through the APN settings. The device won't save apns unless there's a valid GSM device present sometimes which is quite annoying.

If you have root I think there's also a way to manually add the APN settings without using the GUI but I'd have look it up.

Hope that helps
[MTCD Android Head Units General] petraapa:
Hello

MF833V stick after issuing AT+ZCDRUN=8 command removes CD emulation but after unplug/plug it does not work even web interface is not displaying. On Android I see operator and signal strength on status bar but cannot save APN settings.

If I issue AT+ZCDRUN=F it is working but again with CD emulation mode.

Windows said Remote NDIS Based internet sharing device.
[MTCD Android Head Units General] smash046:
After reading this thread I tried in my Px5 CSN2_D drive with stock Android 8.0 a modem stick from a friend who uses it on a windows laptop and i found that it works after inserting the stick into usb without pressing any key.It works with radio on or off no matter it works very well on any conditions!The modem stick is MF667 HSPA+ and just plug and it works!I look forward to trying out a 4G LTE stick modem from the same network provider!
[MTCD Android Head Units General] homer.ali:
Did you upgrade the MCU with the version I posted in my post?

---------- Post added at 05:43 PM ---------- Previous post was at 05:42 PM ----------

3G sticks work because they don't try to do fancy things.. unfortunately I've yet to run into a 4G dongle that doesn't do the flip-flop USB modes which is what makes it so difficult to get working on our headunits.
[MTCD Android Head Units General] petraapa:
[MENTION=3516101]homer.ali[/MENTION]: Upgraded to v3.40 currently it is the latest.

Tapatalkkal küldve az én EVA-L09 eszközömről
[MTCD Android Head Units General] homer.ali:
The one I used and listed in my post is not the latest 3.4 but a modified 3.17.

You have a gs xtrons unit so try installing that and see if it works.
[MTCD Android Head Units General] petraapa:
[MENTION=3516101]homer.ali[/MENTION]

MCU v3.17 based on the filename is a 'SoundPatched' version. Adding better sounding to devices which has no DSP. I think there is no difference in USB/stick handling.

Here is the MCU repository https://4pda.ru/forum/index.php?s=&showtopic=909033&view=findpost&p=74718964

[MENTION=3516101]homer.ali[/MENTION] & [MENTION=682191]liamstears[/MENTION]

I have Oreo Stock ROM. Do you use stock ROM or a modded one?

Tapatalkkal küldve az én EVA-L09 eszközömről
[MTCD Android Head Units General] homer.ali:
I'm using Oreo Malaysk ROM.

All I can say regarding the MCU is that when I had the issue of no 4g or carrier but only the signal strength bars, I installed different MCUs until I got to that one, which worked.

I did try newer versions during my testing and none of them worked.

Maybe later versions introduced a regression in network management?

There's of course the possibility that it was just a coincidence or that our issues have different underlying causes but I imagine trying that MCU version is at least worth a shot.

Anyways hope that helps!
[MTCD Android Head Units General] shouk_1987:
I tried everything and cannot get it to work as well

I have Huwaei E173 3g stick and tried modem modem only with no gain

I have tried ppp widget on rooted Hal9k rom and the widget poped up saying to handle the stick but nothing happens afterwards ( widget says nothing afterwards )

I really want it to work to have permanent internet connection on the headunit but cannot solve it

any body has a clue please ?
[MTCD Android Head Units General] petraapa:
Hi,

Rolled back to MCU v3.17 what you recomnended. No changes I see signal strength and network operator I can register SIM to network but it is still disconnected.

I modified /etc/apns-config.xml and add my mobile network operator.

I have an icon for mobile network settings, and also downloaded a shortcut to APN settings.

For stock mobile settings I can save APNs, for the downloaded one I cannot and I did not see that entry what I saved with the stock proggy. Do the store settings on different location?

Or Android stock issue?

Tapatalkkal küldve az én EVA-L09 eszközömről
[MTCD Android Head Units General] shouk_1987:
Finally i made it to work using Hal9k rooted rom + setting usb stick with both Network card + modem modem ONLY

so from putty only three ports are active : PCUI + Network + modem

Now ppp widget makes the connection and i have vpn connection to my dasaita unit

However i have internet over chrome while spotify and maps or any application that requires internet doesnot see that i am connected

They say that i am offline and do not know how to force them to use the vpn connection

what am i missing , can anybody help please ?
[MTCD Android Head Units General] dansch91:
Good Morning everyone!

I am trying to get an Huawei E3131S-1 working on my PX5 system with Hal9K Firmware. I works with ppp widget, but i want to use it without PPP Widget. My Vodafone K3772-HV is working without any Problems. It gets recognized by the System an then i have a 3G Connection. I want the same with my E3131, because it seems to be faster than the Vodafone Dongle.

I´ve tried some AT^Commands on the E3131, without help:

AT^SETPORT="A1,A2;1,2,3" - Just worked with PPP Widget

^SETPORT:A1;1,16,3,2,A1 is the Config of my Vodafone Stick, but it dont works with the E3131...

Is there any Setport Configuration which is working fully?
[MTCD Android Head Units General] new2020yy:
modem

Hello friends.

I have a new radio, and I'm looking for a 4G USB modem. I realized that not every modem fits and saw that I was looking for a particular parameter, including PX5 PX6, etc.

How can I tell which PX my radio is? Or is this not the most critical criterion?

I have the following figure:

FULL 8227L_demo-userdebug 10 O11019 1571038753

What data do you need more?
[MTCD Android Head Units General] petraapa:
Hi,

In the long run I was able to manage my PX5/Stock Oreo to work with ZTE MF833V with Digi HU data only SIM card.

Only APN app which was working for me: "Mobile Network Settings"

https://play.google.com/store/apps/details?id=diewland.settings.mobilenetworks

I had to switch off auto-connect mode via web interface!

I did not use PuTTY, entered AT+ZCDRUN=8 command in the DC Unlocker window just bellow where it displayed stick settings after autodetect.

Thanks for your hints.

Tapatalkkal küldve az én EVA-L09 eszközömről
[MTCD Android Head Units General] frostsilenec:
Hi All,

so bought HUAWEI K3772 which is not working for me :(

default settings was ^SETPORT:A1;1,16,3,2,A1 - not working, switched to ^SETPORT:A1,A2;1,3,2 , not working in my android car in case of both settings.

on PC all fine - connecting via huawei software or via windows - all fine, unlocked, connected, APN set properly what provider says.

SW Revision : 21.157.40.00.11

IMEI 861320002090041

AT^SETPORT?

^SETPORT:A1,A2;1,3,2

OK

AT ^ SETPORT =?

^SETPORT:A1: CDROM

^SETPORT:A2: SD

^SETPORT:A: BLUE TOOTH

^SETPORT:B: FINGER PRINT

^SETPORT:D: MMS

^SETPORT:E: PC VOICE

^SETPORT:1: MODEM

^SETPORT:2: PCUI

^SETPORT:3: DIAG

^SETPORT:4: PCSC

^SETPORT:5: GPS

^SETPORT:6: GPS CONTROL

^SETPORT:16: NCM

any suggestions what to do? different SETPORT safe settings? different SW revision?

did edit of config, playing with fire.. only configuration which looks like at least for something is:

for set:

AT^SETPORT="FF;1,2,3,7,A2" which is shown as ^SETPORT:;1,2,3,A2 => will show at least empty signal in car, and mobile networks application tries to search for network but without success. on PC it shows hard drive device without any size which is i think the key to fix it, to get rid of default huawei USB flash drive, that dumb android car will use only the router in USB...

SOLVED!!!!

NEVER REMOVE PCUI that will brick your dongle

and now ho to? get rid of CDROM and SD, and voila all working now in car like a charm!

in my case settings commands for K3772 was:

AT^SETPORT="FF;1,16,3,2"

underline for others:

before i had Huawei E1750 but he was loosing connections during drives in car.. after some time i`ve even stopped using mobile networks apps - it was working itslef, even on different car android.

thank you
[MTCD Android Head Units General] owexonline:
I own a multimedia auto buyed from szkanor.

Is a PX5 unit with a 10.1" touch screen with 4 + 64 running Android 8.0.

I inserted a huawei E3131 modem in usb and it started right away with no any other action, with a 3G connection, showing that on the top of the screen. sim card is capable of 4G working on band 1 or band 38.

Only issue I have is sometimes, the USB is not recognized and devices are not "seen". anyone have any ideea how to fix this usb not showing up issue ? so far, after a while i stop the car, and start again and sometimes that fix the usb issue.
[MTCD Android Head Units General] Néocray:
I've bought a ZTE MF833V.

It is not working out of the box as Windows 10 doesn't have drivers for it. Linux ones have drivers and show coverage, but connection doesn't happen.

My PX5 Joying installs a driver as well, as it shows mobile connection icon now, but connection doesn't happen.

So back to seller.
[MTCD Android Head Units General] owexonline:
Huawei E3372h-153 4G connection

Today I buyed a Huawei E3372h-153 usb modem.

1rst I unlocked it, then I put the hilink firmware on it .

I connected on px5 usb and 30 seconds later a wierd sign like <--> appeared on status/notification bar and when i made the test i noticed i got a 4g internet connection .

So Huawei E3372h-153 with hilink firmware is the device we all should own in a px5 unit :)
[MTCD Android Head Units General] Kelevra1902:
Hello,

I have been using my px5 unit with wifi router for the last year. Last week i moved to huawei 3372h for which I changed firmware thanks to this topic.

I have 1gb of internet in the modem and unlimited internet on my phone so every time I use YouTube or music stream I use hotspot from my phone.

The problem is that since I moved to huawei modem my wifi will not work when it is connected.

- if huawei connects px5 can no longer find wifi networks

- if wifi connects first it will disconnect after huawei connects

- if I remove huawei from usb slot, wifi is working

Now my question is: can I turn off and later turn on huawei modem from headunit level, without disconnecting it from usb? Or can I make my headunit to treat wifi as more important network?
[MTCD Android Head Units General] cannondale0815:
My guess is as follows: hilink makes the modem appear as an Ethernet device to the head unit (instead of a mobile data connection). Therefore the head unit prefers what it believes to be a hardwired Ethernet connection over a WiFi connection.
[MTCD Android Head Units General] Kelevra1902:
Maybe.

I was on Hal9k mod v3 Android 8 when I wrote this. I upgraded to v4 Android 9 where there is an option to turn off usb modem in menu. It's a little easier now.
[MTCD Android Head Units General] cannondale0815:
Can you confirm though if your head unit sees the dongle as a mobile data connection or Ethernet? If it's the latter, it will be more difficult to restrict heavy downloads over mobile data. For example, the play store can be set to only download app updates over WiFi (non-mobile) connections.

This matters to me personally, as I am on a metered connection.

Thank you in advance!
[MTCD Android Head Units General] Kelevra1902:
I can if you tell me how to distinguish it.

You can also search this topic for "Huawei 3372h" as it was mentioned earlier along with complete instructions for customizing it for android.
[MTCD Android Head Units General] cannondale0815:
I've been looking into the the specs for all devices mentioned in this thread and they are all for European bands and specifically not suitable for T-Mobile US 3G bands (1700/2100 band 4).

Is anyone here using a dongle that is verified to work on T-Mobile in the US? Preferably one that is seen by Android as a mobile data device (not hilink emulated).

Thanks!
[MTCD Android Head Units General] homer.ali:
Me

Zte mf833v
[MTCD Android Head Units General] cannondale0815:
Splendid! May I ask for the specifics of your head unit? Model, OS, etc?

EDIT: On further inspection, I am doubtful this dongle acts as a native modem instead of USB/Ethernet emulation. Does it actually show a signal status in the Android status bar, like 3G, 4G or LTE?
[MTCD Android Head Units General] homer.ali:
Yes,

See my earlier posts for how I got it to work..it does in fact display 4G natively and NOT via RNDIS Ethernet.

Using an xtrons mtcd px5 unit running malaysx 3.5 8.0 ROM.
[MTCD Android Head Units General] Picuervo:
Hi, I have a D-Link LTE 4G and I would like to know if I can use it and like in my PX5. Thank you
[MTCD Android Head Units General] sekino:
Huawei E160 working on PX6!

Not sure why only working in EDGE mode, but I choosed prefered LTE... need to check different SIM card where LTE working for sure...
[MTCD Android Head Units General] Néocray:
Maybe because the Huawei E160 is actually a 3G modem and not a 4G one…
[MTCD Android Head Units General] clapele:
Path please - I can't find this setting :(
[MTCD Android Head Units General] Kelevra1902:
Mod settings - hardware settings - enable ethernet interface
[MTCD Android Head Units General] Picuervo:
The link does not work, can it be down?
[MTCD Android Head Units General] juankaxxi:
This --> https://www.mediafire.com/file/19gaknnap483f78/Huawei_E3372h-607_Firmware_PX5.rar/file

:good:
[MTCD Android Head Units General] Paulska:
Did anyone maybe try see belsee stereo.

Here is a video of them showing off their lte dongle what is on an android 8.0.

https://youtu.be/_4sv35DTcWg

Looking through their website it looks like their 8.0 systems use px5 cpu.

Their stereos even have connections in the back to match the factory harness, so no extra harness required. Do that's good but also bad if you ever plan on using the head unit on another car.

https://www.belsee.com/belsee-after...cedes-w169-w245-b200-sprinter-viano-vito.html

Anyways, this looks interesting to me as I'm looking for a good unit with proper 4g in my sprinter.
[MTCD Android Head Units General] altojl:
For those who have problems with the update because it does not detect the port, I have found the solution, run the sw_debug_mode file and the modem com ports will be automatically activated. Do it every time you fail the installation to not detect the ports.

http://www.mediafire.com/file/03mmwml81e5fkdr/activate_COM.rar/file
[MTCD Android Head Units General] Sorensonn:
HUAWEI E3131s - I can confirm it works like a charm in PX6 unit with android 9, no need to do anything, just insert sim card, plug it in HU's usb and that's it, it connects and reconnects after sleep, no problem.
[MTCD Android Head Units General] haajee86:
After a little bit resarch and pause and play. Do i think really sure it is a ZTE MF833V This one: https://aliexpress.com/item/32547550887.html

---------- Post added at 11:30 PM ---------- Previous post was at 11:14 PM ----------

Maybe also interesting. I came on this site from Texas Istruments about integration 3G modem in Android.... https://processors.wiki.ti.com/index.php/Android-USB-3G-Modem-Integration
[MTCD Android Head Units General] Paulska:
I'm pretty sure they're are no problems with px6 units

I think the issue is with px3/px5 stereos
[MTCD Android Head Units General] Jeff.monroe:
Sorry, made a mistake!
[MTCD Android Head Units General] aocana:
can you share screenshot of your AU?

it's detected as mobile ?

how is the max speed up/down?

thanks!
[MTCD Android Head Units General] elfundi:
Me cambia la hora

Hello, I have been updating the radio of my citroen c4 with px5 chip to android version 9 downloaded from this page, since then the clock changes the time, sets the time you want, no matter what setting you give it, it is never in the current time,

I would like to know if it has happened to someone and how to solve it, excuse my English, it is a translator.
[MTCD Android Head Units General] aocana:
china unicom from UE, any help please!

I have successfully connected to my dasaita px5 HU and a Huawei e220 usb model. once connected my dasaita says I have 3g but the connection is very slow and in the menu settings I can see that the chosen network is Chinese Unicom, I am located in the EU and I am not sure why choose this operator .

I'm attaching an image, please take it a look.

[IMG="network setting 3G"]https://ibb.co/T0DdfT6[/IMG]

http://ibb.co/T0DdfT6