Question Finding a prepaid SIM/carrier that will will with my Joying

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Palumbum

Member
Jun 28, 2021
23
2
If it's straight up Verizon and not an MVNO, it should be easy to find settings posted online.

Someone in a post above me suggested unlockit.co.nz but they actually had the wrong apn for my carrier so your mileage may vary. I'm sure someone has a Verizon sim in an Android phone that can share the settings. If you get bars and an LTE symbol, I think you can get it to work. Even if you have to borrow someone's old android phone for 5 minutes to find it. 😂
Verizon sim is working!
 

DroidX2

Senior Member
Aug 12, 2011
114
28
I ordered a VERIZON SIM CARD and it delivers tomorrow. However, I had a thought and wondered if anyone tried it. Has anyone used a MIFI device for internet? I was thinking to place one in the vehicle plugged into a USB port. I'll set it up to hide the SSID. At least then, I wouldn't have to worry about bands or anything. It would also give the vehicle WIFI so anyone that has a tablet of sorts would have internet, i.e. kids.
 
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mastrv

Senior Member
Jul 1, 2010
269
83
I was using a MiFi device. It was OK but just an extra cost. I switched to using a hotspot on my phone, which is essentially a MiFi device with more functionality, and it's working well. I always have my phone with me, including when I take trips in my car. I also have the phone set up to turn on the hotspot automatically when it connects to my car through bluetooth and to turn off the hotspot when it disconnects from my car's head unit.

Added bonus is that I picked up a new phone, Samsung A51, bundled with a great data plan and paid less than I was paying for the MiFi SIm.

PS: whichever MiFi you do get would also have to support the bands of your provider, Verizon in this case.
 
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dishe2

Senior Member
Dec 2, 2020
76
10
Yeah lots of people do that. The problem is that if it comes on when the power to the car does, it sometimes needs to be driving for a bit before it starts getting data. The Atoto is "sleeping" like a phone, already connected when you power it on. Pull up maps, crank up some tunes, all before hitting reverse.
 

mastrv

Senior Member
Jul 1, 2010
269
83
Yeah...I don't use sleep mode. I have the head unit turn off and then turn on. Takes me a minute to get going and it's all connected by the time I get going.
 

DroidX2

Senior Member
Aug 12, 2011
114
28
I was using a MiFi device. It was OK but just an extra cost. I switched to using a hotspot on my phone, which is essentially a MiFi device with more functionality, and it's working well. I always have my phone with me, including when I take trips in my car. I also have the phone set up to turn on the hotspot automatically when it connects to my car through bluetooth and to turn off the hotspot when it disconnects from my car's head unit.

Added bonus is that I picked up a new phone, Samsung A51, bundled with a great data plan and paid less than I was paying for the MiFi SIm.

PS: whichever MiFi you do get would also have to support the bands of your provider, Verizon in this case.
Hmmm, nice! How do you set it up to automatically start HotSpot when it connects to bluetooth? Is it through bluetooth tether? The extra cost through Verizon is a bit steep, $30 a month, $35 activation, $15 prorate charge, $12 taxes and fees. Total extra will be about $21 after those one time charges since I get half off added devices, but sheesh. It'll be worth it if it works as desired.
 
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DroidX2

Senior Member
Aug 12, 2011
114
28
Yeah lots of people do that. The problem is that if it comes on when the power to the car does, it sometimes needs to be driving for a bit before it starts getting data. The Atoto is "sleeping" like a phone, already connected when you power it on. Pull up maps, crank up some tunes, all before hitting reverse.
That's true. I normally remote start, so by the time I get there, everything should be booted. The Joying I have boots pretty quickly, and connects to the house WiFi pretty fast. I guess it depends how fast the MIFI device boots up and creates a connection for it to catch.
 

mastrv

Senior Member
Jul 1, 2010
269
83
Why do I reboot instead of sleep? It's like when you call for support...the first thing they ask is to reboot to see if the issue has gone away. In any case, it starts up fast enough. The connection is pretty quick, as well. I do a few things when it starts up...I turn off the screen lock, connect to VPN, start Waze and PowerAmp. The WiFi on the head unit connects pretty quickly to the hotspot.

With Samsung phones, they come with Bixby. It's like Macrodroid or Automate or Tasker. You set the rules and actions. I have mine set to perform an action when the head unit bluetooth is connected. My phone automatically connects to the head unit bluetooth. The Bixby routine then turns on the hotspot, WiFi on the phone is turned off and Mobile data is turned on. When I shut off the car, the routine turns off hotspot, turns on WiFi and then turns off mobile data. That suits me for now. There are other conditions that can be set like location, specific SSIDs connected to, etc.

This is a cost thing, as well. If you have a MiFi in the car, that means you need another SIM with corresponding data plan. There's the cost of the MiFi and then you have to figure out how to work with the MiFi...do you leave it on all the time so that it connects as soon as you get in the car? That's OK if your going on short errands. Overnight, does the charge last long enough? What if you leave the car over the weekend...keep it on the whole time?

Anyway, each person does what's more convenient or what they prefer. I tried the MiFi and it was less convenient and more costly than what I have now. Also, where I am, the data plans are more expensive than in other parts of the world, I believe.
 

Cabell7676

Member
Jun 24, 2022
7
0
So I recorded the screen that shows my inability to change APN settings. Upon further digging, there seems to be a default APN for CMNET that I also cannot change.

Here is the video:


Any thoughts on how to make my default owner account have access to APN settings? I also tried creating another user account, and that account couldn’t access any settings at all.
 

DroidX2

Senior Member
Aug 12, 2011
114
28
Why do I reboot instead of sleep? It's like when you call for support...the first thing they ask is to reboot to see if the issue has gone away. In any case, it starts up fast enough. The connection is pretty quick, as well. I do a few things when it starts up...I turn off the screen lock, connect to VPN, start Waze and PowerAmp. The WiFi on the head unit connects pretty quickly to the hotspot.

With Samsung phones, they come with Bixby. It's like Macrodroid or Automate or Tasker. You set the rules and actions. I have mine set to perform an action when the head unit bluetooth is connected. My phone automatically connects to the head unit bluetooth. The Bixby routine then turns on the hotspot, WiFi on the phone is turned off and Mobile data is turned on. When I shut off the car, the routine turns off hotspot, turns on WiFi and then turns off mobile data. That suits me for now. There are other conditions that can be set like location, specific SSIDs connected to, etc.

This is a cost thing, as well. If you have a MiFi in the car, that means you need another SIM with corresponding data plan. There's the cost of the MiFi and then you have to figure out how to work with the MiFi...do you leave it on all the time so that it connects as soon as you get in the car? That's OK if your going on short errands. Overnight, does the charge last long enough? What if you leave the car over the weekend...keep it on the whole time?

Anyway, each person does what's more convenient or what they prefer. I tried the MiFi and it was less convenient and more costly than what I have now. Also, where I am, the data plans are more expensive than in other parts of the world, I believe.
I see. Thanks! I have Samsung. Never got around to setting up Bixby, but I may try it. I'll have to eat the initial start up costs, but if it works good enough, that'll be a win. Thanks for your help! Since I have the card, I'll still test and report back regarding the SIM card, as well as steps taken.
 

rudy626

Member
Jan 14, 2011
15
9
I notice there are possibly 3 versions, INTEL, UNISOC, and QUALCOMM. I'm not too familiar with chips, so one may be the same. But, I currently have the UNISOC model:

UIS7862 12nm Dual ARM Cortex-A75 + Six ARM A55

Looking to add a SIM. I have Verizon, and want to add a data line to my account for the Unit. I see that someone was able to use Verizon by placing the NEW SIM in a compatible device to activate it first, then add the SIM to the Unit. Once installed, manually add the APN settings using the ADDAPN app. All assuming that when a VERIZON Sim is added, signal is shown. Please verify if these are the correct steps.

Also, I see that the QUALCOMM SNAPDRAGON version has support for BAND 4, which is a widely used band in the US, so I assume it may have better compatibility.

Once I test the steps, I will report back with my findings and any details that will be effective in letting others know what can be achieved.
So I bought this version with band 4 support in mind ... Let me tell you it has been a big disappointment with Joying. It is the snapdragon 625 I've tried TMobile, att, and Verizon none of which work. Att and T-Mobile get signal and operate but sim connection shuts off randomly. I've replaced sim tray sim card reader and even sim card no luck with keeping connection. It completely drops connection randomly. I went as far as buying a replacement unit since Joying wasn't interested in warranty replacing unit over 4g connection. Both units do the same connect to TMobile 4g momentarily then disconnect, show no sim then reconnect to 3g for 5-10min then back to 4g then disconnects again then repeats. Anyone with snapdragon 625 have luck with TMobile?
 

DroidX2

Senior Member
Aug 12, 2011
114
28
So I bought this version with band 4 support in mind ... Let me tell you it has been a big disappointment with Joying. It is the snapdragon 625 I've tried TMobile, att, and Verizon none of which work. Att and T-Mobile get signal and operate but sim connection shuts off randomly. I've replaced sim tray sim card reader and even sim card no luck with keeping connection. It completely drops connection randomly. I went as far as buying a replacement unit since Joying wasn't interested in warranty replacing unit over 4g connection. Both units do the same connect to TMobile 4g momentarily then disconnect, show no sim then reconnect to 3g for 5-10min then back to 4g then disconnects again then repeats. Anyone with snapdragon 625 have luck with TMobile?
Sorry to hear. I considered the Snapdragon due to it's popularity in the US and better compatibility with US bands, but after reading up on both processors, many suggested the UIS chip was a more powerful chip than the SnapDragon verison used.
 

DroidX2

Senior Member
Aug 12, 2011
114
28
To report back on my findings - Testing a Verizon Sim Card in a Joying Head Unit
SKU: JY-UQS11N8G-H
CPU: UIS7862 12nm Dual ARM Cortex-A75 + Six ARM A55

Verdict: The Card works, but proper setup must take place.

Kudos to those in this thread that have reported your experiences, which in turn helped me complete this task.

--I currently have a Verizon account with a few lines on it. I added a Tablet/Data line, in which Verizon sent me a Sim Card. I tested my phone SIM CARD in the Unit for signal prior to adding the line, Signal was shown, but no connection to the network
***Note: The IMEI for the Joying Unit shows the device as incompatible to Verizon, so to qualify for the New Line, I needed to use a device with a working IMEI - in which case I used my iPad 5, copying the IMEI of that device to the Verizon website to complete the transaction.

--Once SIM Card arrived, I placed it in the iPad for activation. After activation, SIM Card was then placed in Joying Unit. I then restarted the Unit. After restart, Unit was showing 4G Signal, but internet was not working. There didn't seem to be a clear way to add a new APN, so I turned on my phone hotspot to download the ADDAPN app. Upon opening the app, I was given the option to add a new APN.

APN Settings:

I had to do a little digging and modification since even the APN settings from my phone were not a match. My phone is a Samsung Galaxy Note 20 Ultra 5G. Here is what works based on my experience.
NOTE: Unlisted settings were not changed and should be left as "Not Set"

Name: Verizon Internet
APN: VZWINTERNET
MCC: 311
MNC: 480
APN Type: default,supl,mms
APN Protocol: IPv4/IPv6
APN roaming protocol: IPv4
APN enable/disable: APN enabled
Bearer: Unspecified
MVNO: GID
MVNO value: BAE0000000000000

Once complete, I clicked the 3 dots on the top right corner, and Saved the settings. Afterward, I restarted the Unit. Once Unit restarted, Internet was tested and working.

Due to the Unit not having full band compatibility, results may vary based on the Verizon setup in your area, however, mine so far has been good, with an occasional hiccup spot in the usual places where even my phone has issues.

Hopefully, I was able to assist those looking to add a Verizon SIM Card to their Joying Unit. This method may also work with other SIM Cards, such as AT&T or T-Mobile, with the exception that the APN settings may need to be modified.

***This was tested on the below Unit:

***SIM Card slot of JOYING Unit is sized for MICRO-SIM. Please have an adapter on hand since SIM Card given will likely be a NANO SIM.






***
 
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DroidX2

Senior Member
Aug 12, 2011
114
28
So I bought this version with band 4 support in mind ... Let me tell you it has been a big disappointment with Joying. It is the snapdragon 625 I've tried TMobile, att, and Verizon none of which work. Att and T-Mobile get signal and operate but sim connection shuts off randomly. I've replaced sim tray sim card reader and even sim card no luck with keeping connection. It completely drops connection randomly. I went as far as buying a replacement unit since Joying wasn't interested in warranty replacing unit over 4g connection. Both units do the same connect to TMobile 4g momentarily then disconnect, show no sim then reconnect to 3g for 5-10min then back to 4g then disconnects again then repeats. Anyone with snapdragon 625 have luck with TMobile?
Hi Rudy;

The SIM Tray seems to be a bit finicky when installing, so make sure that the SIM is in the correct orientation, and that the metal bracket snaps into place after you place it on the SIM Card and slide it up. You can slightly see the slant in the tray to assist with installation.

It requires a MICRO-SIM, so make sure you have an adapter if your SIM is a NANO SIM. Also, if your SIM install was tight and locked, you could try another SIM Card and see if the connection stays steady.

Although rare, the SIM Tray may have a bad connection on the pins. Try cleaning the SIM Card pins with a cotton swab and alcohol. Restart the Unit after you install the SIM. From there, you may need to manually add your APN settings before you get an actual useable connection.
 

rudy626

Member
Jan 14, 2011
15
9
Hi Rudy;

The SIM Tray seems to be a bit finicky when installing, so make sure that the SIM is in the correct orientation, and that the metal bracket snaps into place after you place it on the SIM Card and slide it up. You can slightly see the slant in the tray to assist with installation.

It requires a MICRO-SIM, so make sure you have an adapter if your SIM is a NANO SIM. Also, if your SIM install was tight and locked, you could try another SIM Card and see if the connection stays steady.

Although rare, the SIM Tray may have a bad connection on the pins. Try cleaning the SIM Card pins with a cotton swab and alcohol. Restart the Unit after you install the SIM. From there, you may need to manually add your APN settings before you get an actual useable connection.
Hello DroidX2, I appreciate the feedback and also your contribution with the Verizon sim write up which I might try tomorrow. I did extensive testing and fiddling with the sim tray on my first unit, went as far as desolderin and resoldering new sim tray with no luck. I also bought a separate sim tray which helped a little but still my issue persists. On this my second unit I am encountering the same issues as my first unit when I first installed it, 4g connection for a couple minutes then disconnects from the network completely.. I will try wedging a piece of paper to help pressure the sim card in place as i haven't done that on this unit and I am using a micro sim card adapter. I am really stuck I installed this unit November of 2021 and to this day cannot get it to work for more than 20 minutes. I am at the point of just trying to wedge the sim or wait for the mint mobile sim if that doesn't do it I will be waiting for the next generation of headunits with hopefully better us modems and sim trays. Also starting to believe maybe T-Mobile is locking out the unit due to IMEI but can not confirm.
 

Litwick87

Member
Jul 14, 2007
19
0
Glad I found this thread. I’m thinking about buying a joying 11.6 unit (not sure which chipset I need yet). I have a T-Mobile tablet data plan on an iPad that I never use. I’m hoping to swap it over into the head unit when I do purchase it.
 

DroidX2

Senior Member
Aug 12, 2011
114
28
Hello DroidX2, I appreciate the feedback and also your contribution with the Verizon sim write up which I might try tomorrow. I did extensive testing and fiddling with the sim tray on my first unit, went as far as desolderin and resoldering new sim tray with no luck. I also bought a separate sim tray which helped a little but still my issue persists. On this my second unit I am encountering the same issues as my first unit when I first installed it, 4g connection for a couple minutes then disconnects from the network completely.. I will try wedging a piece of paper to help pressure the sim card in place as i haven't done that on this unit and I am using a micro sim card adapter. I am really stuck I installed this unit November of 2021 and to this day cannot get it to work for more than 20 minutes. I am at the point of just trying to wedge the sim or wait for the mint mobile sim if that doesn't do it I will be waiting for the next generation of headunits with hopefully better us modems and sim trays. Also starting to believe maybe T-Mobile is locking out the unit due to IMEI but can not confirm.

Hello DroidX2, I appreciate the feedback and also your contribution with the Verizon sim write up which I might try tomorrow. I did extensive testing and fiddling with the sim tray on my first unit, went as far as desolderin and resoldering new sim tray with no luck. I also bought a separate sim tray which helped a little but still my issue persists. On this my second unit I am encountering the same issues as my first unit when I first installed it, 4g connection for a couple minutes then disconnects from the network completely.. I will try wedging a piece of paper to help pressure the sim card in place as i haven't done that on this unit and I am using a micro sim card adapter. I am really stuck I installed this unit November of 2021 and to this day cannot get it to work for more than 20 minutes. I am at the point of just trying to wedge the sim or wait for the mint mobile sim if that doesn't do it I will be waiting for the next generation of headunits with hopefully better us modems and sim trays. Also starting to believe maybe T-Mobile is locking out the unit due to IMEI but can not confirm.
That's odd that the same issue persists with a second Unit. I'm sure the SIM Card works fine in other devices. The metal bracket, at least on my Unit, holds the SIM Card tightly in place once snapped in. If the bracket works correctly, you shouldn't be able to place anything between it and the SIM Card, unless you mean to place it above the bracket inside the SIM holder.

Since you have SnapDragon and T-Mobile, you should have a better connection due to the support for Band 4. On your T-Mobile account, do you have the Unit IMEI registered, or another compatible device IMEI?

I encountered an issue with another Chinese device, one of the Snail Gaming phones, in which I used that device IMEI, and it worked for a while on AT&T, but then suddenly, it just stopped working. I think it may be an Carrier IMEI block. Probably try registering with a common device IMEI first, like an iPad or Android Tablet, and then install into the unit.
 

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  • 2
    Hello. Could you, please, send me how to do this?
    make a text file named "IMEI0" (no extension)
    edit it to put in two IMEI values that are valid and compatible with your provider. (one for each SIM slot)
    copy to USB stick
    plug it in

    Some people activate SIM on a different device, but some providers check (I moved mu SIM to a DEL Laptop and got a message from Verizon that it was in a new device)
    1
    make a text file named "IMEI0" (no extension)
    edit it to put in two IMEI values that are valid and compatible with your provider. (one for each SIM slot)
    copy to USB stick
    plug it in

    Some people activate SIM on a different device, but some providers check (I moved mu SIM to a DEL Laptop and got a message from Verizon that it was in a new device)
    Thanks!
    I added this to the Q&A as Q23 in post #1 in General FYT based Spreadtrum uis7862 (unisoc ums512) - Q&A, Mods, tips, firmware
  • 2
    Google Fi absolutely rapes you with charges for data. My teenage son was on it for a month and we immediately switched him back to Straight Talk.

    So @j-5 you used an IMEI switcher? I'm not sure what this actually does... you just 'fooled' the carrier into thinking they're providing service to a cellular phone instead? I don't know much about how to do that. Getting that one from T'eyes does it have to be used on a T'eyes device? I clicked in your post and it downloaded a file (to my computer) but it doesn't do anything. Does this need to be moved to my headunit and 'loaded' somehow?

    I just got my wife's new Joying installed, called Straight Talk and they said they just don't support car stereos, I told them I could put a card in it like a tablet and they told me to use a T-Mobile Straight Talk card, but when I asked about what bands it uses, they couldn't tell me - said I needed to get a card and put it in to know that, but I don't want to spend $50-60 AGAIN to get another card that won't work in my unit.

    I'm kind of at a loss.
    What I did is use an IMEI randomizer to simulate a pixel 5. Put those into the file using notepad (two different ones since I have 2 sim slots). Loaded the file onto a usb thumber and plugged it into the usb interface of the unit. My unit popped up a message saying “imei changed”. Then after a reboot the new IMEI was in the unit settings. Plugged in my USMobile sim card and it showed up on my account to register.

    My unit is an FYT with vendor ID=1.
    Us mobile uses the t-mobile and Verizon networks. The Verizon sim got no signal but the t-mobile one had all the bars.
    2
    Hello. Could you, please, send me how to do this?
    make a text file named "IMEI0" (no extension)
    edit it to put in two IMEI values that are valid and compatible with your provider. (one for each SIM slot)
    copy to USB stick
    plug it in

    Some people activate SIM on a different device, but some providers check (I moved mu SIM to a DEL Laptop and got a message from Verizon that it was in a new device)
    1
    So it appears all of the Big 3 in the U.S. utilize FDD-LTE Band 2 - but this begs the question why my previously-purchased new cards that should have worked on the AT&T network (one from Straight Talk and one direct from AT&T) would not work in my older unit.

    Do I have to somehow make sure the card I purchase is specifically for that band, or does any AT&T 4G LTE (non 5G) card, work on ALL of the AT&T bands?

    Forgive me if I'm asking really dumb questions here - all this compatibility of various cellular networks stuff has me spinning in circles.
    1
    First thing is to put in your SIM card and see if you get bars.
    I had two cards, one for T-mobile and one for Verizon. Only the T-mobile had bars.
    If you don't get bars, you don't have a network and nothing else will work.
    My radio info read the SIM card and told me all the deets on the network provider.

    I don't have a T'eyes unit just a generic FYT unit, and the "magic file" is just a text file named IMEI0 with 2 lines for IMEI numbers.
    1
    make a text file named "IMEI0" (no extension)
    edit it to put in two IMEI values that are valid and compatible with your provider. (one for each SIM slot)
    copy to USB stick
    plug it in

    Some people activate SIM on a different device, but some providers check (I moved mu SIM to a DEL Laptop and got a message from Verizon that it was in a new device)
    Thanks!
    I added this to the Q&A as Q23 in post #1 in General FYT based Spreadtrum uis7862 (unisoc ums512) - Q&A, Mods, tips, firmware