Cellular Dongle (3g, 4g LTE) on MTCD? - MTCD Android Head Units Q&A

Hello,
I have a Joying 5.1.1 HU with RK chip which has absolutely horrible Wi-Fi connection. I recently got a freedompop account (Sprint's network) which gave me a wifi hotspot.
I plan on taking the sim card from the wifi hotspot and putting it into a LTE USB dongle (either Franklin U770 or Netgear 341U for Sprint bands).
1. Is it as simple as plugging in the dongle to one of the USB ports on the back of the Headunit?
2. Is there possible compatibility issues between brands of dongles?
Thanks.

Better to buy the dongle at Joying website, to avoid compatibility issues...
Inviato dal mio SM-G935F utilizzando Tapatalk

1. Yes, if your USB 3G/LTE dongle has already pre-configured (also, not PIN enabled), mine works this way.
2. Yes, you may refer to some of the threads/posts here or in MTCB forums for the list of compatible dongles. I have 2 3G dongles on hand but only one worked.
Also, mine has "USB3 is not mounted" issue quite frequently since I started having the dongle plugged in. I have tried to switch between the 2 ports given and also flashed a few ROMs, to no avail, same thing happened. Not enough power maybe? Still looking for an easy fix. Maybe a seperate Mifi could work or I stop playing music from USB instead.

Erisin (LM) MTCD unit. This works for me:
1. Huawei E220: disadvantage is that it needs two USB slots, one for additional power, else won't work properly
2. Huawei E367: not recommended, because it's dual-mode (includes USB storage mode). By default it's in USB storage mode, to make it work I have to use PPP3 Widget after root.
To answer both your questions:
- yes, compatibility issues can occur, check MTCD thread on pda4, there is a list of tested modems. Other than that, you need "Mobile Network Settings" apk, if you don't see the menu in settings, so you can configure the APN.

Hi. i would like to know if there are any compatible 4G dongles ... ?

This may be useful to you - I currently have issues with using a WiFi dongle on my XTRONS GS MTCD.
The head unit boots in about 1s from standby, but the WiFi dongle (XTRONS 3gdong008) takes about 20-30s to boot.
If I want to get nav / streaming music running, I have to sit there for ages while it turns on and connects.
Very annoying - I've gone back to using my mobile as a hotspot for now.
I'm considering adding a permanently live USB port and leaving the WiFi dongle always running, although I'm not sure if this is going to drain the car battery while parked overnight.

Related

PX5 Share USB internet

I want to buy a USB 4G modem, to connect to my PX5 (I have a GS, with Malaysk ROM 4). Is it possible to share the internet connection from the unit. Reason why, is that I want to install AirPin Pro, so that my kids can connect to the unit via AirPlay on their iPhones, and play music.
Which carrier are you planning to use?
Hi, I want to buy also doesn't matter the carrier, any supported one. I want to know what device is recognized by PX5 is it an 3G or 4G? I'm from Romania and I can try on several networks. So if you know please give me some USB modem type to buy. Thanks
I bought one of these instead of a USB dongle and it's perfect. Added bonus that the car now has it's own WiFi for passengers' devices
https://www.aliexpress.com/item/Unl...Hotspot-Dongle-with-Sim-Card/32806566954.html
chandlerp said:
I bought one of these instead of a USB dongle and it's perfect. Added bonus that the car now has it's own WiFi for passengers' devices
https://www.aliexpress.com/item/Unl...Hotspot-Dongle-with-Sim-Card/32806566954.html
Click to expand...
Click to collapse
Thanks that's really cool I think I will buy it also. Are you happy with it? No bad or software bugs / wifi drops ... Etc and how you can configure it. Do you have some settings what can be applied? Or insert a Sim card directly into the slot and everything is working? Thank for your answer.
Matrix1990 said:
Thanks that's really cool I think I will buy it also. Are you happy with it? No bad or software bugs / wifi drops ... Etc and how you can configure it. Do you have some settings what can be applied? Or insert a Sim card directly into the slot and everything is working? Thank for your answer.
Click to expand...
Click to collapse
When you start it up it is as simple as putting in a SIM card and then logging onto the WiFi using the network name and password printed on the dongle. Once you have joined the network you go the the configuration webpage, something like http://192.0.1.1 and setup your provider details for the sim you have put in. It was really easy. I changed the WiFi name and password to something more memorable for me. It does not stay on so will not drain your battery. It automatically powers off if nothing connects for two hours or if your socket powers off with the ignition. You have to press the button on it to switch it back on, it doesn’t switch on automatically when you turn on the ignition.
Not had any problems with it at all, worked perfectly ever since I fitted it
chandlerp said:
When you start it up it is as simple as putting in a SIM card and then logging onto the WiFi using the network name and password printed on the dongle. Once you have joined the network you go the the configuration webpage, something like http://192.0.1.1 and setup your provider details for the sim you have put in. It was really easy. I changed the WiFi name and password to something more memorable for me. It does not stay on so will not drain your battery. It automatically powers off if nothing connects for two hours or if your socket powers off with the ignition. You have to press the button on it to switch it back on, it doesn’t switch on automatically when you turn on the ignition.
Not had any problems with it at all, worked perfectly ever since I fitted it
Click to expand...
Click to collapse
Thanks for clearly informations ! Have a nice day

Lenovo Tab 2 A10-70F with Carlinkit Carplay dongle--problem

My Lenovo Tab 2 (6.0 Marshmellow stock, unlocked, not rooted) refuses to work with my latest acquisition (Carlinkit Carplay dongle from Aliexpress). The wired plus wireless dongle works on any android above 4.0 and I've tested it on phones from Android 5 to 7 without a problem.
However with my Tab 2 (which I was going to install in my car as a handsfree and navigation unit paired with my phone), it simply refuses. One has to install an app called Autokit (address on vendor's page in Aliexpress) on Android device. When I connect my phone via wireless, it attempts many times and either fails and starts all over, or the screen goes blank (with phone saying it's in carplay mode), or gives warning "The navigation machine [i.e. my tablet] does not support current settings. Please disconnect your phone and enter the Settings page to enter compatible mode."
In settings page I have three "working modes"--speed, fluency and compatible. I understand them to be resolutions: full HD, HD and lesser (VGA?). I get this message on both speed and fluency. In compatible mode, I briefly see the screen loading before it hangs and disconnects.
If I attach phone with dongle with a cable, the app does not react at all and still goes on wifi and blueooth looking for a device.
However in other phones I've tested on, I've had no problem with either of the three modes, or cable phone-to-dongle connect.
Questions:
1. Is it possible to upgrade/ change settings on Lenovo Tab 2 to accept my dongle or is it a lost cause?
2. I understand the dongle has its own wifi and bluetooth, and doesn't rely on cable. Therefore, it must be some USB protocol in the tab which is causing difficulties (as dongle works fine on other phones). Is this logical?
3. If so, there ought to be a better way than disposing my trusty Tab 2 and shopping for a used tab which will accept my dongle?
Thanks.

Connect J7 to wifi / wire / or computer internet (for updates) [faulty built-in wifi]

Good Day!
Hereby with a problem I become mad
I had a Samsung J7 SM-J730F with what I believe is a faulty wifi (board has little corrosion where wifi should be place)
I have reset back to factory, and everything seems working except the wifi,
phone and 3G/4G also works flawlessly
So, I though, I will connect it to some land line trough a OTG wifi module, or wire-cable, or to the computer (as we use to do years and years ago) and update all SO, or when I would like to download something big
For daily use, phone-data is enough
but I can get it to work,
I have try
- Bluetooth pairing
- a micro usb and a usb wifi dongle
- even a cable Micro USB - Ethernet RJ45 (j)
( at amazon : Ugreen-30219-Ethernet-Adaptador-negro/dp/B00WM9LUN8 )
nothing seems to give connectivity to my phone,
anything else I could do ??

Windows RNDIS driver for Android?

So I ran into this problem recently after I installed an Android headunit into my car. The device can only receive internet one of two ways. Either I use my hotspot on my phone and connect to my phone's internet to allow my cars headunit to play music OR I use a 4G LTE USB dongle and attach it to my headunit directly. The problem with the second option is the following. When I plug the 4g LTE dongle into the USB port of the Android headunit, the device is not recognized. I know the device works because I've plugged it into my laptop and received internet no problem. I'm assuming this is because this particular USB dongle only operates using windows RNDIS driver. Since it seems there are very few products on the market (4g LTE USb sim dongles), the best solution I can come up with is maybe compiling an RNDIS driver for Android? The current dongle I have is the third one Ive purchased, the first two didn't work at all with my GSM sim. One was just faulty and the other for European Frequencies. I'm wondering if compiling a RNDIS driver for Android would even work in this case so that my car headunit can recognize and receive internet from the 4g LTE USB dongle.? Or if anyone knows of a dongle that works with gsm sims and works fine with android?

Question Bluetooth connectivity issues

I have been experiencing issues connecting to devices over Bluetooth. Sometimes it just works, other times it doesn't work at all, and some times it kinda works but not right.
All of these issues are resolved by restarting the phone, but that isn't a solution because the issue comes back.
3 Devices I have been having issues with
1. S Pen - Sometimes it won't connect to the phone, I get an "S-Pen Missing" message and it will not connect. If I t ry to connect to it manually via nRF Connect (The Nordic Semiconductors Bluetooth App) it tells me that the BLE device has a GATT error. It happens semi-randomly but I can always make it happen by doing #2
2. Car Stereo - This is the weird one, it will connect and play music, but it will not do "calls" if I connect to Discord it won't recognise the car as a Bluetooth device it can route to.
3. Raspberry Pi - This one it appears it will connect to ONCE, and then after a disconnect it will not connect again.
Again, each of these can be fixed by restarting the device, but they happen again after a while. The pen & RPi use BLE, I don't know what the car uses for calls.
Turn off global power management completely in Device Care.
Network reset, reboot and clear system cache from the boot menu.
Ok, I've done a network reset, and cleared the cache partition. I checked Device Care for something like global power management, and I couldn't find anything. Most of the pwm settings are off except the "optomise daily" setting.
I'll let you know later if I have the same issue again.
These, this is a N10+ running on Pie.
To check if you have disabled global power go to Developer options>standby apps, all buckets should show as active otherwise power management is enable.
KindarConrath said:
I have been experiencing issues connecting to devices over Bluetooth. Sometimes it just works, other times it doesn't work at all, and some times it kinda works but not right.
All of these issues are resolved by restarting the phone, but that isn't a solution because the issue comes back.
3 Devices I have been having issues with
1. S Pen - Sometimes it won't connect to the phone, I get an "S-Pen Missing" message and it will not connect. If I t ry to connect to it manually via nRF Connect (The Nordic Semiconductors Bluetooth App) it tells me that the BLE device has a GATT error. It happens semi-randomly but I can always make it happen by doing #2
2. Car Stereo - This is the weird one, it will connect and play music, but it will not do "calls" if I connect to Discord it won't recognise the car as a Bluetooth device it can route to.
3. Raspberry Pi - This one it appears it will connect to ONCE, and then after a disconnect it will not connect again.
Again, each of these can be fixed by restarting the device, but they happen again after a while. The pen & RPi use BLE, I don't know what the car uses for calls.
Click to expand...
Click to collapse
Are those the only three devices you connect via BT? What other apps do you use that need to use BT (i.e. Galaxy Wear, Apple Music, etc.).
You mentioned "Nordic Semiconductors Bluetooth App." I looked it up. Why do you need a third party generic BLE connecting app? It seems to me that could be the problem. You shouldn't need a third-party app to connect your BLE devices. The S22U's native pairing will work with any BT device that adheres to BT standards.
Try uninstalling the nRF Connect app and see what happens.
The only other Bluetooth devices I have are other in-house hardware, running on SiliconLabs BGM13P chips or NRF52840 chips...
The NRF app isn't a replacement for your bluetooth pairing app, its a debugging app... it can connect to BLE devices and show their GATT profiles, update devices that have Nordic's OTA update code and copy a devices GATT profile to act as a BLE Server.
We use it for testing and debugging.
KindarConrath said:
The only other Bluetooth devices I have are other in-house hardware, running on SiliconLabs BGM13P chips or NRF52840 chips...
The NRF app isn't a replacement for your bluetooth pairing app, its a debugging app... it can connect to BLE devices and show their GATT profiles, update devices that have Nordic's OTA update code and copy a devices GATT profile to act as a BLE Server.
We use it for testing and debugging.
Click to expand...
Click to collapse
Ok. I recommend uninstalling nRF Connect anyway. If anything, to rule out the app. How old is your car and the Raspberry Pi? Even though BT 5.2 is backwards compatible, sometimes older BT devices won't work with newer devices. That doesn't account for the S Pen issue though.
I uninstalled nRF connect, and changed all the settings you both recommended. Exactly the same behaviour when I went to leave work. My car stereo would do music but not calls, then when I restarted my phone, it worked. Then when I got home, my S Pen would not connect to my phone, then I restarted my phone and it worked.
Its not a problem of not being compatible, its a problem of something stops working.
Please also note that these devices worked fine together in the past. I am concered that it is either a change made by an update or a Bluetooth chip that is faulty....
OP- Have you debloated at all and if so maybe you've removed something relevant that might be causing these issues?
No, stock image, no OS modification beyond the things that Samsung offers (GoodLock and Stock customisation)
I have our in-house apps for interacting with our equipment (over Bluetooth) installed, but #1 they shouldn't affect anything if they are not open and #2 they don't do this to ANY of our other test equipment.
I would just like to say, that I appreciate the assistance that you are all offering! I have used many forums over the years when looking for support on things and I rarely find a place that is more ready to try and help than XDA forums!
KindarConrath said:
I have been experiencing issues connecting to devices over Bluetooth. Sometimes it just works, other times it doesn't work at all, and some times it kinda works but not right.
All of these issues are resolved by restarting the phone, but that isn't a solution because the issue comes back.
3 Devices I have been having issues with
1. S Pen - Sometimes it won't connect to the phone, I get an "S-Pen Missing" message and it will not connect. If I t ry to connect to it manually via nRF Connect (The Nordic Semiconductors Bluetooth App) it tells me that the BLE device has a GATT error. It happens semi-randomly but I can always make it happen by doing #2
2. Car Stereo - This is the weird one, it will connect and play music, but it will not do "calls" if I connect to Discord it won't recognise the car as a Bluetooth device it can route to.
3. Raspberry Pi - This one it appears it will connect to ONCE, and then after a disconnect it will not connect again.
Again, each of these can be fixed by restarting the device, but they happen again after a while. The pen & RPi use BLE, I don't know what the car uses for calls.
Click to expand...
Click to collapse
I've seen the issue of the spen disconnecting but only a couple of times and the issue worked itself out within a couple of minutes with me not having to do anything.
I've also have had a couple of wonky issues when connecting a new Samsung phone to my car. I've narrowed down my issue to the fact that when I transfer my data & settings via Samsung smart switch, it includes the details of my Bluetooth pairings. To fix it, I have to go in and delete my Bluetooth phone settings from the car and from my phone and re-pair them.
Rubby1025 said:
I've seen the issue of the spen disconnecting but only a couple of times and the issue worked itself out within a couple of minutes with me not having to do anything.
I've also have had a couple of wonky issues when connecting a new Samsung phone to my car. I've narrowed down my issue to the fact that when I transfer my data & settings via Samsung smart switch, it includes the details of my Bluetooth pairings. To fix it, I have to go in and delete my Bluetooth phone settings from the car and from my phone and re-pair them.
Click to expand...
Click to collapse
As cool as I think Smart-Switch is as a program, I actually never use it when moving from one phone to another. The junk that Google drags with me from one phone to the next is already too much, I like to use a new device as a chance to do some housecleaning. So no old-data oddities here.
KindarConrath said:
I uninstalled nRF connect, and changed all the settings you both recommended. Exactly the same behaviour when I went to leave work. My car stereo would do music but not calls, then when I restarted my phone, it worked. Then when I got home, my S Pen would not connect to my phone, then I restarted my phone and it worked.
Its not a problem of not being compatible, its a problem of something stops working.
Please also note that these devices worked fine together in the past. I am concered that it is either a change made by an update or a Bluetooth chip that is faulty....
Click to expand...
Click to collapse
Hmmm.. Ok. You're probably right about the suspect causes. I know there is a code you can dial to get into diagnostic mode, I just don't know what it is.
The only other option you can try (as a last resort) is to factory reset it. If it is update caused, a factory reset MAY fix it. If you take it to a service center, send it in for repairs, or do a warranty replacement, they're going to factory reset it, or have you reset it.
have you tried running diagnostics in device care ?
or check with this dc
android
Bluetooth test*#*#232331#*#*
samsung
Bluetooth Test Mode*#232331#
I still haven't done a factory reset, but I continue to have the issue.
I have run the BT Test in device care, it always reports good.
I tried the codes, neither of them work as the first one is for vanilla android and the second is for older versions of Samsung firmware.
I've tried completely unpairing from the car radio and re-pairing, disconnecting and connecting from the other device to no avail.
KindarConrath said:
I still haven't done a factory reset, but I continue to have the issue.
I have run the BT Test in device care, it always reports good.
I tried the codes, neither of them work as the first one is for vanilla android and the second is for older versions of Samsung firmware.
I've tried completely unpairing from the car radio and re-pairing, disconnecting and connecting from the other device to no avail.
Click to expand...
Click to collapse
I'm not entirely sold on the idea that it is a hardware fault. It could be a hardware limitation; meaning you cannot connect to more than a certain number of devices simultaneously. I don't know how many BT devices you can connect to at once. I know at least two simultaneous connections (I've only had two simultaneous connections at a time).
You said you have other BT devices in your house other than those three your having issues with. How many are there? How many are you connected to at any given moment?
Is it possible that you have too many simultaneous connections?
When you try to connect to your car.. Did you check under BT connection (your vehicle) to make sure both audio and calls are checked..
doubledragon5 said:
When you try to connect to your car.. Did you check under BT connection (your vehicle) to make sure both audio and calls are checked..
Click to expand...
Click to collapse
Yes, and I've disconnected, reconnected and even unpaired and re-paired the phone to the car.
gernerttl said:
I'm not entirely sold on the idea that it is a hardware fault. It could be a hardware limitation; meaning you cannot connect to more than a certain number of devices simultaneously. I don't know how many BT devices you can connect to at once. I know at least two simultaneous connections (I've only had two simultaneous connections at a time).
You said you have other BT devices in your house other than those three your having issues with. How many are there? How many are you connected to at any given moment?
Is it possible that you have too many simultaneous connections?
Click to expand...
Click to collapse
Unless having multiple connections causes the BT to fail completely, no. Even after turning the car off and walking away, it still will not connect to the S Pen. The only BT devices I use with that phone regularly are:
S Pen, Car (Music & Calls)
At work I develop devices that use Bluetooth and I sometimes connect to them, but only ever one at a time.

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