T10 Toyota 4Runner head unit only able to connect using a Mint mobile SIM and not T-MOBILE or ATT (help)

[T10T4RUSER]

Hello Everyone,

I'm going nuts trying to help friends with the new T10 Android CartrimHome 4Runner head unit with dedicated SIM card. I upgraded from the T9 (4/64) now T10 (6/128gigs). When I had my T9, my dedicated SIM cards used were both T-Mobile and ATT with no issues.

Now, there's 8 in our truck group and they have ATT and or T-Mobile which is not working cant connect to the internet all the settings and APN along with automatic network provisioning was completed like mines.

My MINT Mobile MVNO-TMO provider card offers me access to the world and I have checked each trucks settings against mins including turning off SIM card #1 which was CHINA and only assigned SIM card #2 as my slot.
I've had my T9 since 08JUL19 and am very familiar with how it connects and am stumped by the new T10.
Y'alls help is greatly appreciated.

BTW we all have 5G LTE/4G LTE SIM cards and only my MINT MOBILE works in my China head unit VS my other friends. Their SIMS work in their cell phones when they tested it out.

Thank you.

 

[marchnz]

Looks like it might be another FYT unit, the same factory as some of the Joying, idoing, eonon, and teeyes. You'll need to post the Android system info, directly from the settings menu.

Curious, what does the reseller "cartrimhome" suggest when contacted for support.

 

[T10T4RUSER]

Looks like it might be another FYT unit, the same factory as some of the Joying, idoing, eonon, and teeyes. You'll need to post the Android system info, directly from the settings menu.

Curious, what does the reseller "cartrimhome" suggest when contacted for support.

Hey MarchNZ,
They just tell us referencing the 4GLTE data for U.S. carrier's TMo and ATT.

Platform	UIS7862
Android version	10.0
CPU (Processor)	Unisoc UMS512 1H10 board 8 cores 1.8 GHz 64-bit (2 cores ARM cortex A75 + 6 cores ARM cortex A55)
Process technology	12 nm
GPU (Video processor)	2-core ARM Mali G52 614.4MHz
RAM (RAM)	LPDDR4 - 4/6 GB – Needs validation
ROM (Internal Memory)	EMMC 64/128
Resolution (Screen Resolution)	1280x720
Support android auto / carplay	Wireless CarPlay built-in (TLink).
EQ (Equalizer)	32-band equalizer, surround sound
DSP audio processor	DSP55 ROHM BU32107 - 6 output channels
Camera support	AHD (720p/1080p @ 25/30 fps) / TVI / CVBS
Networks	Built-in 4G SIM Card modem (2 SIM cards) - supports calls and SMS via SIM card. TD-LTE / FDD-LTE / TD-SCDMA / HSPA (+) / WCDMA / HSPA (+) GSM / GPRS / EDGE / CDMA standards – Needs validation
Bluetooth	Realtek 8761BTV Bluetooth 5.0 support – Needs validation
WiFi	2.4Ghz/5 GHz, IEEE802.11B/G/N compatible WLAN
GPS	Navigation with GPS support, BEIDOU, GLONASS
Radio module	ST TDA7708 - https://www.st.com/en/automotive-infotainment-and-telematics/tda7708.html
Amplifier	TDA7851 4 x 48 W MOSFET - https://www.st.com/resource/en/datasheet/tda7851a.pdf
Warranty	1 year

Kind regards.

 

[radionerd]

Hey MarchNZ,
They just tell us referencing the 4GLTE data for U.S. carrier's TMo and ATT.

Platform	UIS7862
Android version	10.0
CPU (Processor)	Unisoc UMS512 1H10 board 8 cores 1.8 GHz 64-bit (2 cores ARM cortex A75 + 6 cores ARM cortex A55)
Process technology	12 nm
GPU (Video processor)	2-core ARM Mali G52 614.4MHz
RAM (RAM)	LPDDR4 - 4/6 GB – Needs validation
ROM (Internal Memory)	EMMC 64/128
Resolution (Screen Resolution)	1280x720
Support android auto / carplay	Wireless CarPlay built-in (TLink).
EQ (Equalizer)	32-band equalizer, surround sound
DSP audio processor	DSP55 ROHM BU32107 - 6 output channels
Camera support	AHD (720p/1080p @ 25/30 fps) / TVI / CVBS
Networks	Built-in 4G SIM Card modem (2 SIM cards) - supports calls and SMS via SIM card. TD-LTE / FDD-LTE / TD-SCDMA / HSPA (+) / WCDMA / HSPA (+) GSM / GPRS / EDGE / CDMA standards – Needs validation
Bluetooth	Realtek 8761BTV Bluetooth 5.0 support – Needs validation
WiFi	2.4Ghz/5 GHz, IEEE802.11B/G/N compatible WLAN
GPS	Navigation with GPS support, BEIDOU, GLONASS
Radio module	ST TDA7708 - https://www.st.com/en/automotive-infotainment-and-telematics/tda7708.html
Amplifier	TDA7851 4 x 48 W MOSFET - https://www.st.com/resource/en/datasheet/tda7851a.pdf
Warranty	1 year

Kind regards.

 

[radionerd]

I have the same unit from cartrimhome ums512_1h10_Natv , I can't get GoogleFi Data SIM to work, which uses T-mobile. It sees networks, but won't show any signal bars. It shows SIM1 and SIM2. Orignially it showed SIM1 on China Telecom. Shut off SIM1 and did reset. The SIM Dongle plugs into back molex pins. From tear down pictures above I don't see an internal SIM.

 

[radionerd]

I think I found my SIM problem. Child labor solder job

P1 white​

p2 blue​

p3 green​

p4 red​

p5 shield​

p5 yellow, Yellow was hanging by a thread on shield wire. never soldered. (Should be on Ground pad)​

 

[radionerd]

I reworked the solder job. I have Yellow wire floating. Still no Data connection, but now I can open the Dialer and send Android hidden codes to debug. The TJM SIM tray was not glued it popped open with exact o spudger tool pry on the cable side, snapped open

I hope someone can confirm the wires on this TJM SIM found on topway ts10 uis7862

 

[radionerd]

Got a replacement SIM tray. Yellow wire is attached to ground topway ts10 uis7862

 

[hrv2016]

Got a replacement SIM tray. Yellow wire is attached to ground topway ts10 uis7862

Hi, I have the same issue 2 of the wires are not soldered, see picture.
But, on mine the wire colors are white, black, green, red and just wire (no color).
Can you help where those wire should be soldered too?

 

[radionerd]

Hi, I have the same issue 2 of the wires are not soldered, see picture.
But, on mine the wire colors are white, black, green, red and just wire (no color).
Can you help where those wire should be soldered too?

Wow, Yours was worse than mine. Hopefully you were able to look at the wire colors from my molex plug pictures and figure it out.

 

[T10Tacoma]

Just bought a T10 and a dedicated data line SIM from T-Mobile and the device seems to be locked on to China Telecom, did the solder job on the sim tray fix the issue? I haven't pulled mine apart to see but the sim tray looks different from what y'all have.

 

[jawbraeka2]

Is there any way to unlock network bands as you can unlock a mobile phone to work on other networks.. I'm guessing it's not an impossible task as a headunit is basically a mobile phone in its own right.